Weather in St. Catharines in July

General weather information about St. Catharines

Average annual temperature is 10.8 °C

Absolute maximum temperature: 31.4 °C

Absolute minimum temperature: -14.7 °C

Number of sunny days: 152 days

Number of rainy days: 187 days

Number of snow days: 26 days

Look at detailed online map of St. Catharines

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

St. Catharines air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	6.4	14.0	11.4	25.8	27.7	27.7	31.2	27.7	31.4	27.3	15.3	14.4
Average daytime temperature (°C)	3.0	4.9	5.4	13.8	17.8	22.5	26.7	24.1	22.5	16.6	8.9	6.7
Average temperature (°C)	0.8	0.4	1.9	8.8	12.8	18.7	22.8	20.7	18.9	13.7	5.7	4.2
Average night temperature (°C)	-1.0	-2.9	-0.7	4.8	8.6	15.4	19.4	17.8	15.8	11.6	3.0	2.2
Absolute minimum temperature (°C)	-7.8	-14.7	-4.7	-3.3	3.0	11.5	16.6	13.8	11.7	2.5	-3.5	-3.0

St. Catharines 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	9.0
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)	3.0	6.5	6.5	8.9	11.7	11.4	11.6	10.5	9.7	6.2	5.8	3.1
Precipitation (mm)	86	68	93	114	38	98	109	132	17	83	63	98
Sunny days	9	9	11	12	23	15	9	9	19	10	14	12
Rainy days	14	12	11	18	8	15	22	22	11	21	14	19
Snow days	8	7	9	0	0	0	0	0	0	0	2	0

St. Catharines - weather forecast by months

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

Best time to visit St. Catharines:

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

May — 11.7(h)
June — 11.4(h)
July — 11.6(h)
August — 10.5(h)

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

June — 15.3(h)

The largest precipitation sum in St. Catharines is at

April — 114(mm)

July — 109(mm)

August — 132(mm)

Weather forecast in the closest to St. Catharines admin centers