Climate of Portsmouth, United Kingdom
Area-weighted average across Portsmouth. For where people actually live and travel, see the cities below.
Portsmouth, a subdivision of United Kingdom, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 5°C / 41°F in February to 17.3°C / 63.1°F in July, with rainfall from 46 mm / 1.8 in to 93 mm / 3.7 in depending on the season (818 mm / 32.2 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 5.3°C41.5°F | 92 mm3.6″ | — |
| February | 5°C41°F | 60 mm2.4″ | — |
| March | 6.9°C44.4°F | 68 mm2.7″ | — |
| April | 8.7°C47.7°F | 51 mm2″ | — |
| May | 12.2°C54°F | 48 mm1.9″ | — |
| June | 15°C59°F | 54 mm2.1″ | — |
| July | 17.3°C63.1°F | 46 mm1.8″ | Sunny & Mild |
| August | 17.1°C62.8°F | 54 mm2.1″ | — |
| September | 14.6°C58.3°F | 73 mm2.9″ | — |
| October | 11.4°C52.5°F | 87 mm3.4″ | — |
| November | 7.9°C46.2°F | 93 mm3.7″ | — |
| December | 6.3°C43.3°F | 92 mm3.6″ | — |
Frequently asked questions
What is the best time to visit Portsmouth?
The best months to visit Portsmouth, United Kingdom for sunny, dry weather are July. The warmest month is July at an area-wide average of 17.3°C / 63.1°F, and the driest is July with about 46 mm / 1.8 in of rainfall.
What is the climate of Portsmouth?
Portsmouth, United Kingdom has area-weighted monthly average temperatures ranging from 5°C / 41°F in February to 17.3°C / 63.1°F in July. Annual rainfall averages about 818 mm / 32.2 in, with the wettest month being November (93 mm / 3.7 in) and the driest July (46 mm / 1.8 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Portsmouth?
The hottest month in Portsmouth is July, with an area-wide average temperature of 17.3°C / 63.1°F.
What is the coldest month in Portsmouth?
The coldest month in Portsmouth is February, with an area-wide average temperature of 5°C / 41°F.
When does it rain most in Portsmouth?
The wettest month in Portsmouth is November, averaging about 93 mm / 3.7 in of rainfall. The driest is July with about 46 mm / 1.8 in.