Best year time to visit Dumbarton

General weather information about Dumbarton

Average annual temperature is 10.0 °C

Absolute maximum temperature: 26.9 °C

Absolute minimum temperature: -5.2 °C

Number of sunny days: 80 days

Number of rainy days: 281 days

Number of snow days: 4 days

Look at detailed online map of Dumbarton

* Weather data for Dumbarton United Kingdom is based on climate observations for 2026 year

Dumbarton air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	11.5	11.3	13.1	15.3	20.9	26.9	23.3	23.6	25.8	18.0	12.3	12.0
Average daytime temperature (°C)	7.3	9.0	8.6	11.9	15.8	20.8	17.6	18.2	17.6	12.6	8.3	7.4
Average temperature (°C)	5.2	6.8	5.5	8.1	11.9	16.2	14.7	15.1	14.3	10.3	6.0	5.7
Average night temperature (°C)	3.1	4.0	2.2	4.4	8.0	11.3	12.0	12.0	11.2	7.8	3.3	3.8
Absolute minimum temperature (°C)	-1.7	-1.6	-5.2	-0.7	5.5	6.6	9.2	8.5	5.8	1.5	-2.3	-3.5

Dumbarton monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	8.0	10.0	13.0	15.0	17.0	17.0	17.0	16.0	13.0	11.0	9.0	7.0
Daylight mean duration (h)	7.7	9.6	11.9	14.2	16.3	17.5	16.9	15.0	12.8	10.4	8.3	7.1
Daylight minimum duration (h)	7.0	8.0	10.0	13.0	15.0	17.0	16.0	13.0	11.0	9.0	7.0	6.0
Sunshine mean duration (h)	3.1	3.0	5.5	7.9	8.4	11.3	10.2	8.8	6.7	4.5	3.4	1.6
Precipitation (mm)	179	86	136	65	63	98	157	91	182	195	106	240
Sunny days	7	8	5	10	9	13	0	3	7	7	10	1
Rainy days	24	20	24	20	22	17	31	28	23	24	20	28
Snow days	0	0	2	0	0	0	0	0	0	0	0	2

Dumbarton - weather forecast by months

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

Best time to visit Dumbarton:

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

April — 7.9(h)
May — 8.4(h)
June — 11.3(h)
July — 10.2(h)
August — 8.8(h)

Months with the longest average daylight duration in Dumbarton:

May — 16.3(h)
June — 17.5(h)
July — 16.9(h)

The largest precipitation sum in Dumbarton is at

January — 179(mm)

September — 182(mm)

October — 195(mm)

December — 240(mm)

Weather forecast in the closest to Dumbarton admin centers