St John's weather by month

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

Temperature in St John's (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
30°F maximum daytime temperature in January in St John's30
30°F maximum daytime temperature in February in St John's30
34°F maximum daytime temperature in March in St John's34
41°F maximum daytime temperature in April in St John's41
50°F maximum daytime temperature in May in St John's50
61°F maximum daytime temperature in June in St John's61
68°F maximum daytime temperature in July in St John's68
68°F maximum daytime temperature in August in St John's68
61°F maximum daytime temperature in September in St John's61
52°F maximum daytime temperature in October in St John's52
43°F maximum daytime temperature in November in St John's43
36°F maximum daytime temperature in December in St John's36
Min temperature (night-time)
18°F minimum night-time temperature in January in St John's18
16°F minimum night-time temperature in February in St John's16
21°F minimum night-time temperature in March in St John's21
28°F minimum night-time temperature in April in St John's28
36°F minimum night-time temperature in May in St John's36
43°F minimum night-time temperature in June in St John's43
52°F minimum night-time temperature in July in St John's52
52°F minimum night-time temperature in August in St John's52
46°F minimum night-time temperature in September in St John's46
39°F minimum night-time temperature in October in St John's39
32°F minimum night-time temperature in November in St John's32
23°F minimum night-time temperature in December in St John's23
Heat & Humidity
No heat & humidity in January in St John's0
No heat & humidity in February in St John's0
No heat & humidity in March in St John's0
No heat & humidity in April in St John's0
No heat & humidity in May in St John's0
No heat & humidity in June in St John's0
No heat & humidity in July in St John's0
No heat & humidity in August in St John's0
No heat & humidity in September in St John's0
No heat & humidity in October in St John's0
No heat & humidity in November in St John's0
No heat & humidity in December in St John's0
Sea temperature
32°F sea temperature in January in St John's32
30°F sea temperature in February in St John's30
30°F sea temperature in March in St John's30
32°F sea temperature in April in St John's32
36°F sea temperature in May in St John's36
43°F sea temperature in June in St John's43
52°F sea temperature in July in St John's52
57°F sea temperature in August in St John's57
54°F sea temperature in September in St John's54
48°F sea temperature in October in St John's48
41°F sea temperature in November in St John's41
36°F sea temperature in December in St John's36

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

Sunshine & Daylight in St John's

  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 St John's9
10 hours of daylight per day in February in St John's10
12 hours of daylight per day in March in St John's12
14 hours of daylight per day in April in St John's14
15 hours of daylight per day in May in St John's15
16 hours of daylight per day in June in St John's16
16 hours of daylight per day in July in St John's16
14 hours of daylight per day in August in St John's14
13 hours of daylight per day in September in St John's13
11 hours of daylight per day in October in St John's11
9 hours of daylight per day in November in St John's9
9 hours of daylight per day in December in St John's9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in St John's1
UV (maximum) index 2 (Low) in February in St John's2
UV (maximum) index 3 (Moderate) in March in St John's3
UV (maximum) index 4 (Moderate) in April in St John's4
UV (maximum) index 6 (High) in May in St John's6
UV (maximum) index 7 (High) in June in St John's7
UV (maximum) index 7 (High) in July in St John's7
UV (maximum) index 6 (High) in August in St John's6
UV (maximum) index 5 (Moderate) in September in St John's5
UV (maximum) index 3 (Moderate) in October in St John's3
UV (maximum) index 1 (Low) in November in St John's1
UV (maximum) index 1 (Low) in December in St John's1

Rainfall in St John's

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
20 days with some rainfall in January in St John's20
17 days with some rainfall in February in St John's17
18 days with some rainfall in March in St John's18
16 days with some rainfall in April in St John's16
16 days with some rainfall in May in St John's16
14 days with some rainfall in June in St John's14
13 days with some rainfall in July in St John's13
14 days with some rainfall in August in St John's14
15 days with some rainfall in September in St John's15
18 days with some rainfall in October in St John's18
18 days with some rainfall in November in St John's18
20 days with some rainfall in December in St John's20
Average monthly rainfall (inches)
6.1 inches monthly rainfall in January in St John's6.1
5.5 inches monthly rainfall in February in St John's5.5
5.2 inches monthly rainfall in March in St John's5.2
4.5 inches monthly rainfall in April in St John's4.5
4.0 inches monthly rainfall in May in St John's4.0
3.6 inches monthly rainfall in June in St John's3.6
3.0 inches monthly rainfall in July in St John's3.0
4.7 inches monthly rainfall in August in St John's4.7
4.6 inches monthly rainfall in September in St John's4.6
5.8 inches monthly rainfall in October in St John's5.8
5.8 inches monthly rainfall in November in St John's5.8
5.9 inches monthly rainfall in December in St John's5.9

More about St John's

St John's by month

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

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The climate guide for Newfoundland & Labrador (St John's) 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 St John's?

St John's has a cold climate with warm summers and some rainfall in all months.

Metric (°C)  |  Imperial (°F)

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Tropical storm risk: St John's, Canada hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
2.2%
<1%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about Canada

Compare St John's with the USA

Below the St John's chart shows average maximum daytime temperature for St John's, Newfoundland and Labrador, Canada and the USA (Washington).

Maximum daytime temperature (°F)

St John's, Newfoundland and Labrador, Canada
USA (Washington)
41
45
34
55
41
66
50
75
61
84
68
88
68
86
61
79
52
68
43
57
36
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30
30

Metric (°C)  |  Imperial (°F)

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