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Southampton Monthly Climate Averages
Southampton is located in oceanic climate that can be described as high humidity and moderate seasonal temperature fluctuations warm summer and soft but windy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Southampton .
Month | t°C day |
t°C night |
mm rain |
daylight |
January | +8.4 | +2.9 | 81 | 9.2h |
February | +8.6 | +2.6 | 58 | 10.7h |
March | +11.1 | +4.1 | 60 | 12.5h |
April | +14 | +5.7 | 51 | 14.5h |
May | +17.5 | +9 | 49 | 16.3h |
June | +20.2 | +11.7 | 50 | 17.2h |
July | +22.4 | +13.7 | 42 | 16.7h |
August | +22.3 | +13.7 | 50 | 15.1h |
September | +19.8 | +11.4 | 60 | 13.1h |
October | +15.6 | +8.9 | 94 | 11.2h |
November | +11.7 | +5.4 | 94 | 9.5h |
December | +8.9 | +3.2 | 89 | 8.7h |
Best time with the soft weather for the sightseeing and long walks in Southampton are June, July, August, September.
Temperature in Southampton
The table shows that the hottest months in Southampton are July and August, during which the average daytime temperature reaches +22.4°C and the nighttime temperature falls to +13.7°C.
The coldest months are January and February, when the daily average temperature falls to +8.4°C, and drops to +2.9°C during the night.
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Sea temperature
The month with the highest average monthly temperature in the Solent on the beaches of Southampton is September with 17.3 degrees.
The coldest water can be found in March — 8.6degrees C.
Precipitation
The largest amount of precipitation falls on average in November and October, up to 94mm, and the least in July and May — up to 42mm.