Weather in Stornoway in August

General weather information about Stornoway

Average annual temperature is 3.6 °C

Absolute maximum temperature: 30.2 °C

Absolute minimum temperature: -34.0 °C

Number of sunny days: 210 days

Number of rainy days: 110 days

Number of snow days: 45 days

Look at detailed online map of Stornoway

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

Stornoway air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	-0.4	1.9	2.0	12.0	27.7	30.2	28.6	29.7	28.4	17.8	6.1	4.6
Average daytime temperature (°C)	-8.7	-9.0	-5.8	5.0	21.9	25.4	22.9	23.5	20.6	8.4	0.6	-0.9
Average temperature (°C)	-12.4	-14.1	-11.8	-0.7	14.1	19.5	17.2	17.8	14.9	4.3	-2.6	-4.6
Average night temperature (°C)	-15.4	-18.5	-17.0	-5.3	7.6	14.3	11.9	13.1	10.0	1.0	-5.2	-7.3
Absolute minimum temperature (°C)	-31.0	-34.0	-25.1	-16.8	-2.6	10.0	6.2	9.1	4.8	-12.4	-15.0	-12.5

Stornoway monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	10.0	12.0	14.0	16.0	16.0	16.0	15.0	13.0	11.0	9.0	8.0
Daylight mean duration (h)	8.5	10.0	11.9	13.9	15.6	16.5	16.1	14.5	12.6	10.7	8.9	8.0
Daylight minimum duration (h)	7.0	9.0	10.0	12.0	14.0	16.0	15.0	13.0	11.0	9.0	8.0	7.0
Sunshine mean duration (h)	3.1	6.4	9.6	9.5	11.3	13.6	13.1	10.7	9.6	5.3	4.7	4.9
Precipitation (mm)	12	15	1	35	42	66	33	98	23	42	29	13
Sunny days	24	16	27	16	19	9	12	13	19	13	16	26
Rainy days	1	0	0	9	12	21	19	18	11	13	4	2
Snow days	6	12	4	5	0	0	0	0	0	5	10	3

Stornoway - weather forecast by months

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

Best time to visit Stornoway:

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

May — 11.3(h)
June — 13.6(h)
July — 13.1(h)
August — 10.7(h)

Months with the longest average daylight duration in Stornoway:

May — 15.6(h)
June — 16.5(h)
July — 16.1(h)

The largest precipitation sum in Stornoway is at

June — 66(mm)

August — 98(mm)

Weather forecast in the closest to Stornoway admin centers