St John's climate guide

Temperature in St John's (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-1°C maximum daytime temperature in January in St John's-1
-1°C maximum daytime temperature in February in St John's-1
1°C maximum daytime temperature in March in St John's1
5°C maximum daytime temperature in April in St John's5
10°C maximum daytime temperature in May in St John's10
16°C maximum daytime temperature in June in St John's16
20°C maximum daytime temperature in July in St John's20
20°C maximum daytime temperature in August in St John's20
16°C maximum daytime temperature in September in St John's16
11°C maximum daytime temperature in October in St John's11
6°C maximum daytime temperature in November in St John's6
2°C maximum daytime temperature in December in St John's2
Min temperature (night-time)
-8°C minimum night-time temperature in January in St John's-8
-9°C minimum night-time temperature in February in St John's-9
-6°C minimum night-time temperature in March in St John's-6
-2°C minimum night-time temperature in April in St John's-2
2°C minimum night-time temperature in May in St John's2
6°C minimum night-time temperature in June in St John's6
11°C minimum night-time temperature in July in St John's11
11°C minimum night-time temperature in August in St John's11
8°C minimum night-time temperature in September in St John's8
4°C minimum night-time temperature in October in St John's4
0°C minimum night-time temperature in November in St John's0
-5°C minimum night-time temperature in December in St John's-5
Sea temperature
0°C sea temperature in January in St John's0
-1°C sea temperature in February in St John's-1
-1°C sea temperature in March in St John's-1
0°C sea temperature in April in St John's0
2°C sea temperature in May in St John's2
6°C sea temperature in June in St John's6
11°C sea temperature in July in St John's11
14°C sea temperature in August in St John's14
12°C sea temperature in September in St John's12
9°C sea temperature in October in St John's9
5°C sea temperature in November in St John's5
2°C sea temperature in December in St John's2

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

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 (mm)
155 mm monthly rainfall in January in St John's155
140 mm monthly rainfall in February in St John's140
132 mm monthly rainfall in March in St John's132
115 mm monthly rainfall in April in St John's115
102 mm monthly rainfall in May in St John's102
92 mm monthly rainfall in June in St John's92
75 mm monthly rainfall in July in St John's75
119 mm monthly rainfall in August in St John's119
117 mm monthly rainfall in September in St John's117
147 mm monthly rainfall in October in St John's147
148 mm monthly rainfall in November in St John's148
150 mm monthly rainfall in December in St John's150

More climate for St John's

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

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

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More about St John's

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

The climate guide for St John's, Newfoundland & Labrador 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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