Rijeka weather by month

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

Temperature in Rijeka (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
39°F maximum daytime temperature in January in Rijeka39
43°F maximum daytime temperature in February in Rijeka43
48°F maximum daytime temperature in March in Rijeka48
55°F maximum daytime temperature in April in Rijeka55
64°F maximum daytime temperature in May in Rijeka64
72°F maximum daytime temperature in June in Rijeka72
75°F maximum daytime temperature in July in Rijeka75
75°F maximum daytime temperature in August in Rijeka75
68°F maximum daytime temperature in September in Rijeka68
61°F maximum daytime temperature in October in Rijeka61
50°F maximum daytime temperature in November in Rijeka50
41°F maximum daytime temperature in December in Rijeka41
Min temperature (night-time)
25°F minimum night-time temperature in January in Rijeka25
27°F minimum night-time temperature in February in Rijeka27
30°F minimum night-time temperature in March in Rijeka30
37°F minimum night-time temperature in April in Rijeka37
45°F minimum night-time temperature in May in Rijeka45
50°F minimum night-time temperature in June in Rijeka50
54°F minimum night-time temperature in July in Rijeka54
52°F minimum night-time temperature in August in Rijeka52
48°F minimum night-time temperature in September in Rijeka48
41°F minimum night-time temperature in October in Rijeka41
34°F minimum night-time temperature in November in Rijeka34
27°F minimum night-time temperature in December in Rijeka27
Heat & Humidity
No heat & humidity in January in Rijeka0
No heat & humidity in February in Rijeka0
No heat & humidity in March in Rijeka0
No heat & humidity in April in Rijeka0
No heat & humidity in May in Rijeka0
No heat & humidity in June in Rijeka0
Low heat & humidity in July in RijekaL
Low heat & humidity in August in RijekaL
No heat & humidity in September in Rijeka0
No heat & humidity in October in Rijeka0
No heat & humidity in November in Rijeka0
No heat & humidity in December in Rijeka0
Sea temperature
52°F sea temperature in January in Rijeka52
50°F sea temperature in February in Rijeka50
50°F sea temperature in March in Rijeka50
54°F sea temperature in April in Rijeka54
63°F sea temperature in May in Rijeka63
70°F sea temperature in June in Rijeka70
73°F sea temperature in July in Rijeka73
75°F sea temperature in August in Rijeka75
70°F sea temperature in September in Rijeka70
64°F sea temperature in October in Rijeka64
59°F sea temperature in November in Rijeka59
55°F sea temperature in December in Rijeka55

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

Sunshine & UV index in Rijeka

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Rijeka9
10 hours of daylight per day in February in Rijeka10
12 hours of daylight per day in March in Rijeka12
14 hours of daylight per day in April in Rijeka14
15 hours of daylight per day in May in Rijeka15
16 hours of daylight per day in June in Rijeka16
15 hours of daylight per day in July in Rijeka15
14 hours of daylight per day in August in Rijeka14
13 hours of daylight per day in September in Rijeka13
11 hours of daylight per day in October in Rijeka11
10 hours of daylight per day in November in Rijeka10
9 hours of daylight per day in December in Rijeka9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Rijeka1
UV (maximum) index 2 (Low) in February in Rijeka2
UV (maximum) index 3 (Moderate) in March in Rijeka3
UV (maximum) index 5 (Moderate) in April in Rijeka5
UV (maximum) index 7 (High) in May in Rijeka7
UV (maximum) index 8 (Very High) in June in Rijeka8
UV (maximum) index 8 (Very High) in July in Rijeka8
UV (maximum) index 7 (High) in August in Rijeka7
UV (maximum) index 5 (Moderate) in September in Rijeka5
UV (maximum) index 3 (Moderate) in October in Rijeka3
UV (maximum) index 2 (Low) in November in Rijeka2
UV (maximum) index 1 (Low) in December in Rijeka1

Rainfall in Rijeka

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
14 days with some rainfall in January in Rijeka14
13 days with some rainfall in February in Rijeka13
14 days with some rainfall in March in Rijeka14
16 days with some rainfall in April in Rijeka16
16 days with some rainfall in May in Rijeka16
16 days with some rainfall in June in Rijeka16
13 days with some rainfall in July in Rijeka13
13 days with some rainfall in August in Rijeka13
13 days with some rainfall in September in Rijeka13
13 days with some rainfall in October in Rijeka13
15 days with some rainfall in November in Rijeka15
14 days with some rainfall in December in Rijeka14
Average monthly rainfall (inches)
4.5 inches monthly rainfall in January in Rijeka4.5
4.1 inches monthly rainfall in February in Rijeka4.1
4.6 inches monthly rainfall in March in Rijeka4.6
5.0 inches monthly rainfall in April in Rijeka5.0
4.7 inches monthly rainfall in May in Rijeka4.7
5.3 inches monthly rainfall in June in Rijeka5.3
4.0 inches monthly rainfall in July in Rijeka4.0
5.0 inches monthly rainfall in August in Rijeka5.0
5.6 inches monthly rainfall in September in Rijeka5.6
6.1 inches monthly rainfall in October in Rijeka6.1
7.3 inches monthly rainfall in November in Rijeka7.3
5.2 inches monthly rainfall in December in Rijeka5.2

More about Rijeka

Rijeka by month

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

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The climate guide for Croatia (Rijeka) 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 Rijeka?

Rijeka has a temperate climate with hot summers and some rainfall in all months.

Rijeka weather in January

Expect daytime maximum temperatures of 39°F in Rijeka, Croatia in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 4.5 inches of rainfall in the month, which might fall as snow.

  • 39°F maximum daytime temperature in January in Rijeka39
    39°F max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in January in Rijeka14
    14 days with some rainfall
  • 25°F minimum night-time temperature in January in Rijeka25
    25°F min night temperature
  • 9 hours of daylight per day in January in Rijeka9
    9 hours of daylight per day
  • No heat & humidity in January in Rijeka0
    No heat & humidity
  • 4.5 inches monthly rainfall in January in Rijeka4.5
    4.5 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Rijeka1
    1 (Low) UV index
  • 52°F sea temperature in January in Rijeka52
    52°F sea temperature

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Rijeka weather in February

Expect daytime maximum temperatures of 43°F in Rijeka, Croatia in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 43°F maximum daytime temperature in February in Rijeka43
    43°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in February in Rijeka13
    13 days with some rainfall
  • 27°F minimum night-time temperature in February in Rijeka27
    27°F min night temperature
  • 10 hours of daylight per day in February in Rijeka10
    10 hours of daylight per day
  • No heat & humidity in February in Rijeka0
    No heat & humidity
  • 4.1 inches monthly rainfall in February in Rijeka4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in February in Rijeka2
    2 (Low) UV index
  • 50°F sea temperature in February in Rijeka50
    50°F sea temperature

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Rijeka weather in March

Expect daytime maximum temperatures of 48°F in Rijeka, Croatia in March based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 4.6 inches of rainfall in the month.

  • 48°F maximum daytime temperature in March in Rijeka48
    48°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in March in Rijeka14
    14 days with some rainfall
  • 30°F minimum night-time temperature in March in Rijeka30
    30°F min night temperature
  • 12 hours of daylight per day in March in Rijeka12
    12 hours of daylight per day
  • No heat & humidity in March in Rijeka0
    No heat & humidity
  • 4.6 inches monthly rainfall in March in Rijeka4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Rijeka3
    3 (Moderate) UV index
  • 50°F sea temperature in March in Rijeka50
    50°F sea temperature

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Rijeka weather in April

Expect daytime maximum temperatures of 55°F in Rijeka, Croatia in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 55°F maximum daytime temperature in April in Rijeka55
    55°F max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in April in Rijeka16
    16 days with some rainfall
  • 37°F minimum night-time temperature in April in Rijeka37
    37°F min night temperature
  • 14 hours of daylight per day in April in Rijeka14
    14 hours of daylight per day
  • No heat & humidity in April in Rijeka0
    No heat & humidity
  • 5.0 inches monthly rainfall in April in Rijeka5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in April in Rijeka5
    5 (Moderate) UV index
  • 54°F sea temperature in April in Rijeka54
    54°F sea temperature

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Rijeka weather in May

Expect daytime maximum temperatures of 64°F in Rijeka, Croatia in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 4.7 inches of rainfall in the month.

  • 64°F maximum daytime temperature in May in Rijeka64
    64°F max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in May in Rijeka16
    16 days with some rainfall
  • 45°F minimum night-time temperature in May in Rijeka45
    45°F min night temperature
  • 15 hours of daylight per day in May in Rijeka15
    15 hours of daylight per day
  • No heat & humidity in May in Rijeka0
    No heat & humidity
  • 4.7 inches monthly rainfall in May in Rijeka4.7
    4.7 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Rijeka7
    7 (High) UV index
  • 63°F sea temperature in May in Rijeka63
    63°F sea temperature

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Rijeka weather in June

Expect daytime maximum temperatures of 72°F in Rijeka, Croatia in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 16 days with some rainfall and typically 5.3 inches of rainfall in the month.

  • 72°F maximum daytime temperature in June in Rijeka72
    72°F max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in June in Rijeka16
    16 days with some rainfall
  • 50°F minimum night-time temperature in June in Rijeka50
    50°F min night temperature
  • 16 hours of daylight per day in June in Rijeka16
    16 hours of daylight per day
  • No heat & humidity in June in Rijeka0
    No heat & humidity
  • 5.3 inches monthly rainfall in June in Rijeka5.3
    5.3 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Rijeka8
    8 (Very High) UV index
  • 70°F sea temperature in June in Rijeka70
    70°F sea temperature

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Rijeka weather in July

Expect daytime maximum temperatures of 75°F in Rijeka, Croatia in July based on long-term weather averages. There are 9 hours of sunshine per day on average with 13 days with some rainfall and typically 4.0 inches of rainfall in the month.

  • 75°F maximum daytime temperature in July in Rijeka75
    75°F max day temperature
  • 9 hours of sunshine per day
  • 13 days with some rainfall in July in Rijeka13
    13 days with some rainfall
  • 54°F minimum night-time temperature in July in Rijeka54
    54°F min night temperature
  • 15 hours of daylight per day in July in Rijeka15
    15 hours of daylight per day
  • Low heat & humidity in July in RijekaL
    Low heat & humidity
  • 4.0 inches monthly rainfall in July in Rijeka4.0
    4.0 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Rijeka8
    8 (Very High) UV index
  • 73°F sea temperature in July in Rijeka73
    73°F sea temperature

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Rijeka weather in August

Expect daytime maximum temperatures of 75°F in Rijeka, Croatia in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 75°F maximum daytime temperature in August in Rijeka75
    75°F max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in August in Rijeka13
    13 days with some rainfall
  • 52°F minimum night-time temperature in August in Rijeka52
    52°F min night temperature
  • 14 hours of daylight per day in August in Rijeka14
    14 hours of daylight per day
  • Low heat & humidity in August in RijekaL
    Low heat & humidity
  • 5.0 inches monthly rainfall in August in Rijeka5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 7 (High) in August in Rijeka7
    7 (High) UV index
  • 75°F sea temperature in August in Rijeka75
    75°F sea temperature

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Rijeka weather in September

Expect daytime maximum temperatures of 68°F in Rijeka, Croatia in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 5.6 inches of rainfall in the month.

  • 68°F maximum daytime temperature in September in Rijeka68
    68°F max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in September in Rijeka13
    13 days with some rainfall
  • 48°F minimum night-time temperature in September in Rijeka48
    48°F min night temperature
  • 13 hours of daylight per day in September in Rijeka13
    13 hours of daylight per day
  • No heat & humidity in September in Rijeka0
    No heat & humidity
  • 5.6 inches monthly rainfall in September in Rijeka5.6
    5.6 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Rijeka5
    5 (Moderate) UV index
  • 70°F sea temperature in September in Rijeka70
    70°F sea temperature

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Rijeka weather in October

Expect daytime maximum temperatures of 61°F in Rijeka, Croatia in October based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 6.1 inches of rainfall in the month.

  • 61°F maximum daytime temperature in October in Rijeka61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in October in Rijeka13
    13 days with some rainfall
  • 41°F minimum night-time temperature in October in Rijeka41
    41°F min night temperature
  • 11 hours of daylight per day in October in Rijeka11
    11 hours of daylight per day
  • No heat & humidity in October in Rijeka0
    No heat & humidity
  • 6.1 inches monthly rainfall in October in Rijeka6.1
    6.1 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Rijeka3
    3 (Moderate) UV index
  • 64°F sea temperature in October in Rijeka64
    64°F sea temperature

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Rijeka weather in November

Expect daytime maximum temperatures of 50°F in Rijeka, Croatia in November based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 7.3 inches of rainfall in the month.

  • 50°F maximum daytime temperature in November in Rijeka50
    50°F max day temperature
  • 3 hours of sunshine per day
  • 15 days with some rainfall in November in Rijeka15
    15 days with some rainfall
  • 34°F minimum night-time temperature in November in Rijeka34
    34°F min night temperature
  • 10 hours of daylight per day in November in Rijeka10
    10 hours of daylight per day
  • No heat & humidity in November in Rijeka0
    No heat & humidity
  • 7.3 inches monthly rainfall in November in Rijeka7.3
    7.3 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in November in Rijeka2
    2 (Low) UV index
  • 59°F sea temperature in November in Rijeka59
    59°F sea temperature

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Rijeka weather in December

Expect daytime maximum temperatures of 41°F in Rijeka, Croatia in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 5.2 inches of rainfall in the month, which might fall as snow.

  • 41°F maximum daytime temperature in December in Rijeka41
    41°F max day temperature
  • 3 hours of sunshine per day
  • 14 days with some rainfall in December in Rijeka14
    14 days with some rainfall
  • 27°F minimum night-time temperature in December in Rijeka27
    27°F min night temperature
  • 9 hours of daylight per day in December in Rijeka9
    9 hours of daylight per day
  • No heat & humidity in December in Rijeka0
    No heat & humidity
  • 5.2 inches monthly rainfall in December in Rijeka5.2
    5.2 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Rijeka1
    1 (Low) UV index
  • 55°F sea temperature in December in Rijeka55
    55°F sea temperature

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More about Rijeka

Rijeka by month

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

Recommended for Croatia

  • Explore latest special offers & online deals from TUI
  • Free child places & £0 deposits with direct debit available
  • Book summer & winter sun holidays in 2026/2027

TUITUI deal finder

The climate guide for Croatia (Rijeka) 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 Rijeka weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Rijeka, Croatia and the UK (London).

Maximum daytime temperature (°F)

Rijeka, Croatia
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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