Weather in St. Johns in August

General weather information about St. Johns

Average annual temperature is 10.5 °C

Absolute maximum temperature: 31.0 °C

Absolute minimum temperature: -15.9 °C

Number of sunny days: 141 days

Number of rainy days: 198 days

Number of snow days: 26 days

Look at detailed online map of St. Johns

* Weather data for St. Johns Canada is based on climate observations for 2026 year

St. Johns air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	8.4	14.1	11.2	26.8	30.7	30.6	31.0	29.1	30.8	27.7	14.8	14.4
Average daytime temperature (°C)	3.1	5.0	5.7	15.1	19.4	24.3	27.1	24.5	23.1	16.4	8.6	6.8
Average temperature (°C)	0.2	-0.1	1.4	9.0	13.5	19.1	22.3	20.1	18.2	12.8	4.8	3.9
Average night temperature (°C)	-2.3	-4.1	-2.1	4.1	8.0	14.5	18.0	16.4	13.9	9.9	1.6	1.2
Absolute minimum temperature (°C)	-11.3	-15.9	-9.1	-4.4	2.2	10.5	14.4	11.3	6.2	-2.0	-5.1	-4.6

St. Johns monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.4	10.5	11.9	13.4	14.7	15.3	15.0	13.9	12.5	11.0	9.7	9.1
Daylight minimum duration (h)	9.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	2.7	6.3	6.1	8.4	11.5	10.9	11.5	10.3	9.5	5.8	5.4	3.0
Precipitation (mm)	107	77	100	127	45	98	118	119	21	84	55	97
Sunny days	8	10	11	12	21	15	3	10	17	10	13	11
Rainy days	17	10	12	18	10	15	28	21	13	21	15	18
Snow days	6	8	8	0	0	0	0	0	0	0	2	2

St. Johns - weather forecast by months

St. Johns weather in january St. Johns weather in february St. Johns weather in march St. Johns weather in april St. Johns weather in may St. Johns weather in june St. Johns weather in july St. Johns weather in august St. Johns weather in september St. Johns weather in october St. Johns weather in november St. Johns weather in december

Best time to visit St. Johns:

The best time to visit St. Johns during the most sunny months:

May — 11.5(h)
June — 10.9(h)
July — 11.5(h)
August — 10.3(h)

Months with the longest average daylight duration in St. Johns:

June — 15.3(h)

The largest precipitation sum in St. Johns is at

April — 127(mm)

July — 118(mm)

August — 119(mm)

Weather forecast in the closest to St. Johns admin centers