Climate of Southampton
Southampton has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Southampton is 14° degrees and there is about 386 mm of rain in a year. It is dry for 142 days a year with an average humidity of 83% and an UV-index of 3.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 7°C and 21°C
- Night:the average nighttime temperature is between 3°C and 13°C
- Sea temperature: the sea temperature is between 10°C and 18°C
- Rain: it rains 174 days and there is a total of approximately 385 mm rainfall
- Snow: it snows an average of 4 days per year
- Sun hours: throughout the year there are 2358 sun hours
Maximum temperature: | between 7°C and 21°C |
Warmest month: | 21°C in July |
Coldest month: | 7°C in January |
Night temperature: | between 3°C and 13°C |
Sea temperature: | between 10°C and 18°C |
Dry days: | 187 days |
Days with rain: | 174 days |
Days with snow: | 4 days |
Total rain sum: | 385 mm |
Hours of sunshine: | 2358 hours |
Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Southampton.
Precipitation graph
This graph shows the average amount of rainfall per month for Southampton.
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Climate table of Southampton
In this climate table you can see at a glance what the average weather per month is for Southampton. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Southampton might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 7 | 8 | 10 | 13 | 16 | 19 | 21 | 20 | 18 | 15 | 11 | 9 |
Night temp. (°C) | 3 | 3 | 4 | 6 | 8 | 11 | 13 | 13 | 12 | 10 | 7 | 5 |
Water temp. (°C) | 11 | 10 | 10 | 11 | 13 | 15 | 17 | 18 | 18 | 17 | 17 | 14 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 35 | 33 | 28 | 23 | 29 | 26 | 30 | 28 | 19 | 37 | 48 | 49 |
Days with rain | 16 | 14 | 13 | 14 | 15 | 13 | 16 | 15 | 11 | 15 | 16 | 16 |
Days with snow | 2 | 1 | - | - | - | - | - | - | - | - | - | 1 |
Dry days | 13 | 13 | 18 | 16 | 16 | 17 | 15 | 16 | 19 | 16 | 14 | 14 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 4 | 4 | 6 | 8 | 8 | 8 | 9 | 9 | 8 | 5 | 4 | 4 |
Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
UV-index | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 4 | 4 | 4 | 2 | 3 |
Best time to visit Southampton
The best time to visit Southampton in England is from June through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Southampton is 21°C in July and the lowest is 7°C in January. The maximum water temperature is 18°C and the lowest water temperature is 10°C.
Climate of Southampton by month
What is the average climate in a given month for Southampton? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.












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