+50.7990° · -1.0913° · ELEV 0m
Portsmouth
United Kingdom · England
Monthly weather averages for Portsmouth, United Kingdom — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
July → JanuaryClimate Overview
Portsmouth has a temperate climate. The warmest month is July (21°C average high) and the coolest is January (9°C).
№ 02
833 mm / yearRainfall by Month
Portsmouth sees 833 mm of rain a year. The wettest month is October (97 mm); the driest is April (43 mm).
№ 03
June–SeptemberBest Time to Visit
June–September
13°C – 21°C · 11.0h sun
The best time to visit Portsmouth is June–September, when temperatures average 13°C–21°C with 11.0 sunshine hours per day.
Some visitors prefer April–May for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 8.5°C | 3.4°C | 86 mm | 4.4 h | 08:00 | 16:26 |
|---|---|---|---|---|---|---|
| February | 8.8°C | 3.8°C | 67 mm | 5.7 h | 07:17 | 17:19 |
| March | 10.5°C | 4.7°C | 62 mm | 7.3 h | 06:18 | 18:07 |
| April | 13.0°C | 6.0°C | 43 mm | 10.2 h | 06:10 | 19:58 |
| May | 16.2°C | 9.1°C | 52 mm | 11.4 h | 05:15 | 20:45 |
| June | 19.5°C | 12.5°C | 55 mm | 12.1 h | 04:50 | 21:19 |
| July | 21.2°C | 14.7°C | 58 mm | 12.3 h | 05:07 | 21:12 |
| August | 20.7°C | 14.3°C | 74 mm | 10.6 h | 05:51 | 20:26 |
| September | 19.1°C | 12.8°C | 57 mm | 9.0 h | 06:39 | 19:20 |
| October | 15.5°C | 10.4°C | 97 mm | 6.6 h | 07:26 | 18:13 |
| November | 11.6°C | 7.0°C | 92 mm | 4.9 h | 07:19 | 16:18 |
| December | 9.8°C | 5.4°C | 90 mm | 3.9 h | 07:59 | 15:58 |
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View monthly climate averages for nearby cities or compare them with Portsmouth.
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Temperature, rainfall and sunshine, month by month.