Weather in Saint John in May

General weather information about Saint John

Average annual temperature is 7.8 °C

Absolute maximum temperature: 28.2 °C

Absolute minimum temperature: -28.1 °C

Number of sunny days: 165 days

Number of rainy days: 173 days

Number of snow days: 27 days

Look at detailed online map of Saint John

* Weather data for Saint John Canada is based on climate observations for 2026 year

Saint John air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	8.6	10.0	7.0	17.0	24.8	23.4	28.2	27.6	27.0	25.5	13.4	14.5
Average daytime temperature (°C)	2.3	-0.5	3.7	10.3	14.9	17.3	23.5	22.4	21.0	15.8	5.6	3.8
Average temperature (°C)	-1.2	-5.1	-0.1	5.8	10.1	13.8	19.6	18.3	16.7	12.1	1.9	0.2
Average night temperature (°C)	-4.4	-9.7	-3.4	1.9	6.1	11.0	16.9	15.1	13.7	9.1	-1.5	-3.2
Absolute minimum temperature (°C)	-11.7	-28.1	-10.0	-4.7	2.0	6.2	14.8	10.9	7.1	0.8	-7.7	-12.0

Saint John 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)	9.2	10.4	11.9	13.5	14.9	15.6	15.3	14.1	12.5	11.0	9.5	8.8
Daylight minimum duration (h)	8.0	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)	3.9	6.2	6.2	8.6	10.0	6.2	7.1	8.7	7.3	6.3	5.4	4.4
Precipitation (mm)	234	47	74	57	93	266	195	138	97	133	77	125
Sunny days	7	14	10	16	18	9	10	11	21	13	18	18
Rainy days	17	6	13	14	13	21	21	20	9	18	12	9
Snow days	7	8	8	0	0	0	0	0	0	0	0	4

Saint John - weather forecast by months

Saint John weather in january Saint John weather in february Saint John weather in march Saint John weather in april Saint John weather in may Saint John weather in june Saint John weather in july Saint John weather in august Saint John weather in september Saint John weather in october Saint John weather in november Saint John weather in december

Best time to visit Saint John:

The best time to visit Saint John during the most sunny months:

April — 8.6(h)
May — 10.0(h)
August — 8.7(h)

Months with the longest average daylight duration in Saint John:

June — 15.6(h)
July — 15.3(h)

The largest precipitation sum in Saint John is at

January — 234(mm)

June — 266(mm)

July — 195(mm)

Weather forecast in the closest to Saint John admin centers