Port St Johns weather by month

Check out Port St Johns weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Port St Johns (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
77°F maximum daytime temperature in January in Port St Johns77
77°F maximum daytime temperature in February in Port St Johns77
77°F maximum daytime temperature in March in Port St Johns77
75°F maximum daytime temperature in April in Port St Johns75
73°F maximum daytime temperature in May in Port St Johns73
72°F maximum daytime temperature in June in Port St Johns72
70°F maximum daytime temperature in July in Port St Johns70
70°F maximum daytime temperature in August in Port St Johns70
70°F maximum daytime temperature in September in Port St Johns70
72°F maximum daytime temperature in October in Port St Johns72
73°F maximum daytime temperature in November in Port St Johns73
75°F maximum daytime temperature in December in Port St Johns75
Min temperature (night-time)
66°F minimum night-time temperature in January in Port St Johns66
66°F minimum night-time temperature in February in Port St Johns66
66°F minimum night-time temperature in March in Port St Johns66
63°F minimum night-time temperature in April in Port St Johns63
59°F minimum night-time temperature in May in Port St Johns59
55°F minimum night-time temperature in June in Port St Johns55
54°F minimum night-time temperature in July in Port St Johns54
55°F minimum night-time temperature in August in Port St Johns55
57°F minimum night-time temperature in September in Port St Johns57
59°F minimum night-time temperature in October in Port St Johns59
63°F minimum night-time temperature in November in Port St Johns63
64°F minimum night-time temperature in December in Port St Johns64
Heat & Humidity
Low heat & humidity in January in Port St JohnsL
Low heat & humidity in February in Port St JohnsL
Low heat & humidity in March in Port St JohnsL
No heat & humidity in April in Port St Johns0
No heat & humidity in May in Port St Johns0
No heat & humidity in June in Port St Johns0
No heat & humidity in July in Port St Johns0
No heat & humidity in August in Port St Johns0
No heat & humidity in September in Port St Johns0
No heat & humidity in October in Port St Johns0
No heat & humidity in November in Port St Johns0
Low heat & humidity in December in Port St JohnsL
Sea temperature
77°F sea temperature in January in Port St Johns77
79°F sea temperature in February in Port St Johns79
79°F sea temperature in March in Port St Johns79
77°F sea temperature in April in Port St Johns77
73°F sea temperature in May in Port St Johns73
72°F sea temperature in June in Port St Johns72
70°F sea temperature in July in Port St Johns70
70°F sea temperature in August in Port St Johns70
70°F sea temperature in September in Port St Johns70
70°F sea temperature in October in Port St Johns70
73°F sea temperature in November in Port St Johns73
75°F sea temperature in December in Port St Johns75

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Port St Johns

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
14 hours of daylight per day in January in Port St Johns14
13 hours of daylight per day in February in Port St Johns13
12 hours of daylight per day in March in Port St Johns12
11 hours of daylight per day in April in Port St Johns11
11 hours of daylight per day in May in Port St Johns11
10 hours of daylight per day in June in Port St Johns10
10 hours of daylight per day in July in Port St Johns10
11 hours of daylight per day in August in Port St Johns11
12 hours of daylight per day in September in Port St Johns12
13 hours of daylight per day in October in Port St Johns13
14 hours of daylight per day in November in Port St Johns14
14 hours of daylight per day in December in Port St Johns14
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in Port St Johns11
UV (maximum) index 11+ (Extreme) in February in Port St Johns11
UV (maximum) index 10 (Very High) in March in Port St Johns10
UV (maximum) index 6 (High) in April in Port St Johns6
UV (maximum) index 4 (Moderate) in May in Port St Johns4
UV (maximum) index 3 (Moderate) in June in Port St Johns3
UV (maximum) index 3 (Moderate) in July in Port St Johns3
UV (maximum) index 5 (Moderate) in August in Port St Johns5
UV (maximum) index 7 (High) in September in Port St Johns7
UV (maximum) index 9 (Very High) in October in Port St Johns9
UV (maximum) index 11 (Extreme) in November in Port St Johns11
UV (maximum) index 11+ (Extreme) in December in Port St Johns11

Rainfall in Port St Johns

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
15 days with some rainfall in January in Port St Johns15
13 days with some rainfall in February in Port St Johns13
13 days with some rainfall in March in Port St Johns13
9 days with some rainfall in April in Port St Johns9
6 days with some rainfall in May in Port St Johns6
4 days with some rainfall in June in Port St Johns4
5 days with some rainfall in July in Port St Johns5
6 days with some rainfall in August in Port St Johns6
10 days with some rainfall in September in Port St Johns10
14 days with some rainfall in October in Port St Johns14
15 days with some rainfall in November in Port St Johns15
14 days with some rainfall in December in Port St Johns14
Average monthly rainfall (inches)
4.4 inches monthly rainfall in January in Port St Johns4.4
4.6 inches monthly rainfall in February in Port St Johns4.6
5.0 inches monthly rainfall in March in Port St Johns5.0
3.3 inches monthly rainfall in April in Port St Johns3.3
2.3 inches monthly rainfall in May in Port St Johns2.3
1.3 inches monthly rainfall in June in Port St Johns1.3
1.6 inches monthly rainfall in July in Port St Johns1.6
1.9 inches monthly rainfall in August in Port St Johns1.9
3.0 inches monthly rainfall in September in Port St Johns3.0
4.1 inches monthly rainfall in October in Port St Johns4.1
4.8 inches monthly rainfall in November in Port St Johns4.8
4.1 inches monthly rainfall in December in Port St Johns4.1

More about Port St Johns

Port St Johns by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for South Africa (Port St Johns) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Port St Johns?

Port St Johns has a temperate climate with hot summers and some rainfall in all months.

Port St Johns weather in January

Expect daytime maximum temperatures of 77°F in Port St Johns, South Africa in January based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 4.4 inches of rainfall in the month.

  • 77°F maximum daytime temperature in January in Port St Johns77
    77°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in January in Port St Johns15
    15 days with some rainfall
  • 66°F minimum night-time temperature in January in Port St Johns66
    66°F min night temperature
  • 14 hours of daylight per day in January in Port St Johns14
    14 hours of daylight per day
  • Low heat & humidity in January in Port St JohnsL
    Low heat & humidity
  • 4.4 inches monthly rainfall in January in Port St Johns4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Port St Johns11
    11+ (Extreme) UV index
  • 77°F sea temperature in January in Port St Johns77
    77°F sea temperature

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Port St Johns weather in February

Expect daytime maximum temperatures of 77°F in Port St Johns, South Africa in February based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 4.6 inches of rainfall in the month.

  • 77°F maximum daytime temperature in February in Port St Johns77
    77°F max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in February in Port St Johns13
    13 days with some rainfall
  • 66°F minimum night-time temperature in February in Port St Johns66
    66°F min night temperature
  • 13 hours of daylight per day in February in Port St Johns13
    13 hours of daylight per day
  • Low heat & humidity in February in Port St JohnsL
    Low heat & humidity
  • 4.6 inches monthly rainfall in February in Port St Johns4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in February in Port St Johns11
    11+ (Extreme) UV index
  • 79°F sea temperature in February in Port St Johns79
    79°F sea temperature

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Port St Johns weather in March

Expect daytime maximum temperatures of 77°F in Port St Johns, South Africa in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 77°F maximum daytime temperature in March in Port St Johns77
    77°F max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in March in Port St Johns13
    13 days with some rainfall
  • 66°F minimum night-time temperature in March in Port St Johns66
    66°F min night temperature
  • 12 hours of daylight per day in March in Port St Johns12
    12 hours of daylight per day
  • Low heat & humidity in March in Port St JohnsL
    Low heat & humidity
  • 5.0 inches monthly rainfall in March in Port St Johns5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in March in Port St Johns10
    10 (Very High) UV index
  • 79°F sea temperature in March in Port St Johns79
    79°F sea temperature

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Port St Johns weather in April

Expect daytime maximum temperatures of 75°F in Port St Johns, South Africa in April based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.3 inches of rainfall in the month.

  • 75°F maximum daytime temperature in April in Port St Johns75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in April in Port St Johns9
    9 days with some rainfall
  • 63°F minimum night-time temperature in April in Port St Johns63
    63°F min night temperature
  • 11 hours of daylight per day in April in Port St Johns11
    11 hours of daylight per day
  • No heat & humidity in April in Port St Johns0
    No heat & humidity
  • 3.3 inches monthly rainfall in April in Port St Johns3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 6 (High) in April in Port St Johns6
    6 (High) UV index
  • 77°F sea temperature in April in Port St Johns77
    77°F sea temperature

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Port St Johns weather in May

Expect daytime maximum temperatures of 73°F in Port St Johns, South Africa in May based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.3 inches of rainfall in the month.

  • 73°F maximum daytime temperature in May in Port St Johns73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in May in Port St Johns6
    6 days with some rainfall
  • 59°F minimum night-time temperature in May in Port St Johns59
    59°F min night temperature
  • 11 hours of daylight per day in May in Port St Johns11
    11 hours of daylight per day
  • No heat & humidity in May in Port St Johns0
    No heat & humidity
  • 2.3 inches monthly rainfall in May in Port St Johns2.3
    2.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Port St Johns4
    4 (Moderate) UV index
  • 73°F sea temperature in May in Port St Johns73
    73°F sea temperature

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Port St Johns weather in June

Expect daytime maximum temperatures of 72°F in Port St Johns, South Africa in June based on long-term weather averages. There are 7 hours of sunshine per day on average.

  • 72°F maximum daytime temperature in June in Port St Johns72
    72°F max day temperature
  • 7 hours of sunshine per day
  • 4 days with some rainfall in June in Port St Johns4
    4 days with some rainfall
  • 55°F minimum night-time temperature in June in Port St Johns55
    55°F min night temperature
  • 10 hours of daylight per day in June in Port St Johns10
    10 hours of daylight per day
  • No heat & humidity in June in Port St Johns0
    No heat & humidity
  • 1.3 inches monthly rainfall in June in Port St Johns1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in June in Port St Johns3
    3 (Moderate) UV index
  • 72°F sea temperature in June in Port St Johns72
    72°F sea temperature

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Port St Johns weather in July

Expect daytime maximum temperatures of 70°F in Port St Johns, South Africa in July based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 1.6 inches of rainfall in the month.

  • 70°F maximum daytime temperature in July in Port St Johns70
    70°F max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in July in Port St Johns5
    5 days with some rainfall
  • 54°F minimum night-time temperature in July in Port St Johns54
    54°F min night temperature
  • 10 hours of daylight per day in July in Port St Johns10
    10 hours of daylight per day
  • No heat & humidity in July in Port St Johns0
    No heat & humidity
  • 1.6 inches monthly rainfall in July in Port St Johns1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in July in Port St Johns3
    3 (Moderate) UV index
  • 70°F sea temperature in July in Port St Johns70
    70°F sea temperature

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Port St Johns weather in August

Expect daytime maximum temperatures of 70°F in Port St Johns, South Africa in August based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 1.9 inches of rainfall in the month.

  • 70°F maximum daytime temperature in August in Port St Johns70
    70°F max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in August in Port St Johns6
    6 days with some rainfall
  • 55°F minimum night-time temperature in August in Port St Johns55
    55°F min night temperature
  • 11 hours of daylight per day in August in Port St Johns11
    11 hours of daylight per day
  • No heat & humidity in August in Port St Johns0
    No heat & humidity
  • 1.9 inches monthly rainfall in August in Port St Johns1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Port St Johns5
    5 (Moderate) UV index
  • 70°F sea temperature in August in Port St Johns70
    70°F sea temperature

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Port St Johns weather in September

Expect daytime maximum temperatures of 70°F in Port St Johns, South Africa in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 3.0 inches of rainfall in the month.

  • 70°F maximum daytime temperature in September in Port St Johns70
    70°F max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Port St Johns10
    10 days with some rainfall
  • 57°F minimum night-time temperature in September in Port St Johns57
    57°F min night temperature
  • 12 hours of daylight per day in September in Port St Johns12
    12 hours of daylight per day
  • No heat & humidity in September in Port St Johns0
    No heat & humidity
  • 3.0 inches monthly rainfall in September in Port St Johns3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Port St Johns7
    7 (High) UV index
  • 70°F sea temperature in September in Port St Johns70
    70°F sea temperature

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Port St Johns weather in October

Expect daytime maximum temperatures of 72°F in Port St Johns, South Africa in October based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 72°F maximum daytime temperature in October in Port St Johns72
    72°F max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in October in Port St Johns14
    14 days with some rainfall
  • 59°F minimum night-time temperature in October in Port St Johns59
    59°F min night temperature
  • 13 hours of daylight per day in October in Port St Johns13
    13 hours of daylight per day
  • No heat & humidity in October in Port St Johns0
    No heat & humidity
  • 4.1 inches monthly rainfall in October in Port St Johns4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in October in Port St Johns9
    9 (Very High) UV index
  • 70°F sea temperature in October in Port St Johns70
    70°F sea temperature

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Port St Johns weather in November

Expect daytime maximum temperatures of 73°F in Port St Johns, South Africa in November based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 4.8 inches of rainfall in the month.

  • 73°F maximum daytime temperature in November in Port St Johns73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in November in Port St Johns15
    15 days with some rainfall
  • 63°F minimum night-time temperature in November in Port St Johns63
    63°F min night temperature
  • 14 hours of daylight per day in November in Port St Johns14
    14 hours of daylight per day
  • No heat & humidity in November in Port St Johns0
    No heat & humidity
  • 4.8 inches monthly rainfall in November in Port St Johns4.8
    4.8 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in November in Port St Johns11
    11 (Extreme) UV index
  • 73°F sea temperature in November in Port St Johns73
    73°F sea temperature

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Port St Johns weather in December

Expect daytime maximum temperatures of 75°F in Port St Johns, South Africa in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 75°F maximum daytime temperature in December in Port St Johns75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in December in Port St Johns14
    14 days with some rainfall
  • 64°F minimum night-time temperature in December in Port St Johns64
    64°F min night temperature
  • 14 hours of daylight per day in December in Port St Johns14
    14 hours of daylight per day
  • Low heat & humidity in December in Port St JohnsL
    Low heat & humidity
  • 4.1 inches monthly rainfall in December in Port St Johns4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Port St Johns11
    11+ (Extreme) UV index
  • 75°F sea temperature in December in Port St Johns75
    75°F sea temperature

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More about Port St Johns

Port St Johns by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for South Africa (Port St Johns) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Compare Port St Johns weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Port St Johns, South Africa and the UK (London).

Maximum daytime temperature (°F)

Port St Johns, South Africa
UK (London)
77
45
77
45
77
50
75
55
73
63
72
68
70
72
70
72
70
66
72
59
73
50
75
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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