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.
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 |
Nearest destinations
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Head-to-head
How Southampton compares month by month: Southampton vs London · Southampton vs Bristol · Southampton vs Bournemouth · all comparisons
Southampton: questions and answers
What kind of destination is Southampton?
Southampton is a regional city in United Kingdom with a oceanic / maritime climate.
How many hours of sunshine does Southampton get a year?
Southampton gets about 1,900 hours of sunshine a year, at its best around September.
When is the best time to visit Southampton?
The sunniest time to visit Southampton is September, when the Sunshine Score peaks at 81/100 (with June and July close behind). Expect daytime highs around 20°C / 68°F.
What is the least sunny month in Southampton?
January is the least sunny month in Southampton, scoring 0/100 with about 79 mm of rain.
Is Southampton the sunniest place in United Kingdom?
Yes — with about 1,900 hours of sunshine a year, Southampton has the most annual sunshine of the 48 United Kingdom destinations tracked by Sunshine Atlas.
How strong is the sun in Southampton?
The typical midday UV index in Southampton peaks around 6 (high) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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