Best year time to visit Waltham

General weather information about Waltham

Average annual temperature is 7.2 °C

Absolute maximum temperature: 32.3 °C

Absolute minimum temperature: -32.5 °C

Number of sunny days: 134 days

Number of rainy days: 173 days

Number of snow days: 58 days

Look at detailed online map of Waltham

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

Waltham air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	3.4	7.7	7.3	25.3	31.2	32.3	30.8	26.0	30.1	27.8	9.7	8.7
Average daytime temperature (°C)	-2.3	-2.0	2.2	11.8	18.8	23.7	25.5	22.5	21.8	14.5	3.7	1.2
Average temperature (°C)	-5.8	-7.5	-2.2	5.4	12.2	18.6	20.8	18.1	16.7	10.7	-0.1	-2.2
Average night temperature (°C)	-9.1	-11.8	-5.8	0.4	6.1	14.1	17.0	14.5	12.6	7.6	-2.9	-5.1
Absolute minimum temperature (°C)	-19.3	-32.5	-14.3	-11.5	-1.0	9.8	13.0	9.4	8.1	-2.2	-10.4	-15.8

Waltham 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	8.0
Daylight mean duration (h)	9.1	10.4	11.9	13.6	14.9	15.7	15.3	14.1	12.5	10.9	9.5	8.7
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	8.0	8.0
Sunshine mean duration (h)	3.0	4.9	6.2	7.7	10.9	10.8	11.7	9.8	9.6	4.4	4.0	2.8
Precipitation (mm)	88	71	60	116	103	109	129	142	47	120	46	65
Sunny days	8	5	13	12	20	10	4	9	20	9	12	12
Rainy days	7	9	7	15	11	20	27	22	10	21	11	13
Snow days	16	14	11	3	0	0	0	0	0	1	7	6

Waltham - weather forecast by months

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

Best time to visit Waltham:

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

May — 10.9(h)
June — 10.8(h)
July — 11.7(h)
August — 9.8(h)
September — 9.6(h)

Months with the longest average daylight duration in Waltham:

June — 15.7(h)
July — 15.3(h)

The largest precipitation sum in Waltham is at

April — 116(mm)

July — 129(mm)

August — 142(mm)

October — 120(mm)

Weather forecast in the closest to Waltham admin centers