Southampton weather
UK towns · Hampshire, England · 50.91°N 1.40°W
Southampton, in Hampshire, England, has its warmest weather in August, when daytime temperatures average 21.9°C, while January nights are the coldest at around 2.4°C. The town sees roughly 961mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 8.2° | 2.4° | 79mm | 12 |
| Feb | 10.1° | 4.2° | 86mm | 14 |
| Mar | 11.1° | 4.5° | 84mm | 14 |
| Apr | 13.8° | 5.1° | 57mm | 10 |
| May | 17.2° | 8.4° | 69mm | 12 |
| Jun | 20.4° | 11.6° | 57mm | 10 |
| Jul | 21.5° | 13.4° | 63mm | 12 |
| Aug | 21.9° | 13.9° | 68mm | 10 |
| Sep | 19.9° | 11.9° | 83mm | 11 |
| Oct | 15.9° | 9.9° | 131mm | 16 |
| Nov | 11.8° | 6.1° | 90mm | 12 |
| Dec | 9.3° | 4.6° | 94mm | 13 |
Southampton weather FAQs
What is the warmest month in Southampton?
August is typically the warmest month in Southampton, with average daytime highs of 21.9°C. Summer afternoons (June–August) average around 21.3°C.
What is the wettest month in Southampton?
October is usually the wettest month, with around 131mm of rain over roughly 16 rainy days. April is typically the driest (57mm).
How much does it rain in Southampton per year?
Southampton receives roughly 961mm of precipitation per year, spread over about 146 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Southampton?
Winter nights (December–February) in Southampton average around 3.7°C, with January typically the coldest month (average low 2.4°C).