Weather in Waterloo in December

General weather information about Waterloo

Average annual temperature is 8.9 °C

Absolute maximum temperature: 30.7 °C

Absolute minimum temperature: -23.7 °C

Number of sunny days: 142 days

Number of rainy days: 182 days

Number of snow days: 41 days

Look at detailed online map of Waterloo

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

Waterloo air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	6.1	12.6	10.2	25.9	29.6	30.7	30.0	27.2	30.6	27.4	13.6	12.5
Average daytime temperature (°C)	1.1	2.8	4.2	14.0	19.6	23.8	26.0	23.6	22.1	15.1	6.8	4.8
Average temperature (°C)	-1.6	-2.6	-0.7	7.7	12.9	18.4	20.6	18.7	16.9	11.2	2.8	2.0
Average night temperature (°C)	-4.1	-6.7	-4.8	2.6	6.7	13.3	15.9	14.3	12.8	8.2	-0.6	-0.1
Absolute minimum temperature (°C)	-14.6	-23.7	-11.1	-6.9	0.0	9.3	11.6	8.6	5.0	-1.2	-7.2	-5.0

Waterloo 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	15.4	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)	2.3	6.1	6.2	8.4	11.5	11.3	11.5	9.9	9.6	5.5	5.0	2.2
Precipitation (mm)	76	68	115	114	45	96	136	80	23	65	46	72
Sunny days	9	11	7	11	20	15	4	12	14	11	16	12
Rainy days	12	9	11	18	11	15	27	19	16	19	11	14
Snow days	10	8	13	1	0	0	0	0	0	1	3	5

Waterloo - weather forecast by months

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Best time to visit Waterloo:

The best time to visit Waterloo during the most sunny months:

May — 11.5(h)
June — 11.3(h)
July — 11.5(h)
August — 9.9(h)
September — 9.6(h)

Months with the longest average daylight duration in Waterloo:

June — 15.4(h)

The largest precipitation sum in Waterloo is at

March — 115(mm)

April — 114(mm)

July — 136(mm)

Weather forecast in the closest to Waterloo admin centers