Best year time to visit Portsmouth

General weather information about Portsmouth

Average annual temperature is 12.3 °C

Absolute maximum temperature: 23.3 °C

Absolute minimum temperature: -1.1 °C

Number of sunny days: 164 days

Number of rainy days: 201 days

Look at detailed online map of Portsmouth

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

Portsmouth air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	12.1	10.5	11.9	14.7	19.0	23.3	20.7	20.9	22.7	19.7	14.8	12.9
Average daytime temperature (°C)	8.4	8.4	9.3	10.9	15.2	19.6	18.5	19.0	19.8	16.1	11.6	10.6
Average temperature (°C)	6.7	6.9	7.7	9.2	12.8	17.1	17.1	17.2	18.1	14.8	10.0	9.2
Average night temperature (°C)	5.1	5.4	6.3	7.4	10.3	14.6	15.5	15.2	16.4	13.2	8.2	7.7
Absolute minimum temperature (°C)	-1.0	0.7	2.0	3.6	8.2	10.0	12.6	12.3	10.7	7.1	1.9	-1.1

Portsmouth 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	13.8	15.5	16.4	16.0	14.5	12.6	10.7	9.0	8.0
Daylight minimum duration (h)	8.0	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)	4.1	5.1	4.9	8.2	11.9	13.7	10.7	10.5	9.2	7.1	4.7	2.9
Precipitation (mm)	102	8	110	65	31	18	107	82	64	144	117	119
Sunny days	15	23	6	11	20	22	8	12	16	12	10	9
Rainy days	16	5	25	19	11	8	23	19	14	19	20	22
Snow days	0	0	0	0	0	0	0	0	0	0	0	0

Portsmouth - weather forecast by months

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

Best time to visit Portsmouth:

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

May — 11.9(h)
June — 13.7(h)
July — 10.7(h)
August — 10.5(h)

Months with the longest average daylight duration in Portsmouth:

May — 15.5(h)
June — 16.4(h)
July — 16.0(h)

The largest precipitation sum in Portsmouth is at

January — 102(mm)

March — 110(mm)

July — 107(mm)

October — 144(mm)

November — 117(mm)

December — 119(mm)

Weather forecast in the closest to Portsmouth admin centers