Southampton weather by month & the best time to visit
🇬🇧 United Kingdom · regional city · oceanic / maritime climate
The best time to visit Southampton is September — its sunniest month (Sunshine Score 81/100), with June and July close behind. Southampton averages about 1,900 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 46 mm of rain in September.
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- Sun hours / year
- 1,900
- Sunniest month
- September
- Peak score
- 81/100
- Rain / year
- 781 mm
- Midday UV at peak
- 6 (high)
- Population
- 384k
- Elevation
- 10 m
When is the best time to visit Southampton?
For sunshine, the best time to visit Southampton is September, then June and July. The dullest month is January (0/100, 79 mm of rain). The full month-by-month picture is in the table below.
How sunny is Southampton?
Southampton gets a moderate 1,900 hours of sunshine a year. 81 Sunshine Score points separate September (81) from January (0), so the month you pick matters. Southampton is the sunniest of the 48 destinations tracked in United Kingdom. The year's 781 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 3° / 37°F | 79 mm | 0 |
| February | 0 | 8° / 46°F | 2° / 36°F | 61 mm | 1 |
| March | 13 | 10° / 50°F | 3° / 37°F | 57 mm | 2 |
| April | 40 | 14° / 57°F | 5° / 41°F | 48 mm | 4 |
| May | 60 | 17° / 63°F | 8° / 46°F | 54 mm | 5 |
| June | 79 | 20° / 68°F | 11° / 52°F | 56 mm | 6 |
| July | 79 | 23° / 73°F | 13° / 55°F | 58 mm | 6 |
| August | 78 | 23° / 73°F | 13° / 55°F | 64 mm | 5 |
| September | 81 | 20° / 68°F | 11° / 52°F | 46 mm | 4 |
| October | 49 | 16° / 61°F | 9° / 48°F | 86 mm | 2 |
| November | 18 | 11° / 52°F | 6° / 43°F | 87 mm | 1 |
| December | 0 | 8° / 46°F | 4° / 39°F | 85 mm | 0 |
See Southampton on the interactive sunshine globe →
Nearby places for sunshine
- Bournemouth United Kingdom · 39 km · best in Sep · 1,899 h sun/yr
- London United Kingdom · 85 km · best in Sep · 1,592 h sun/yr
- Bristol United Kingdom · 106 km · best in Jul · 1,565 h sun/yr
- Exeter United Kingdom · 146 km · best in Jul · 1,796 h sun/yr
- Cardiff United Kingdom · 147 km · best in Jul · 1,565 h sun/yr
- London United Kingdom · 158 km · best in Jun · 1,604 h sun/yr
Nearest destinations
- Saint Anne Guernsey · 151 km · 1,933 h sun/yr · best in Sep
Head-to-head
How Southampton compares month by month: Southampton vs London · Southampton vs Bristol · Southampton vs Bournemouth · all comparisons
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