Hyperlocal rainfall totals + real-time NOAA forecasts
Accurate weather without the clutter
Southampton, England Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Southampton, England?
Southampton, England gets 867 mm of precipitation a year over about 190 rainy days. July is the warmest month (average high 22°C) and February the coldest (average low 1°C).
Oceanic climate
Southampton, England has warm summers and chilly winters. Daytime highs range from about 9°C in January to 22°C in July. November is usually the wettest month. The most comfortable time to visit is typically May to September, when daytime highs sit near 20°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 2° | 9° |
| Spring | Mar–May | 5° | 14° |
| Summer | Jun–Aug | 12° | 22° |
| Autumn | Sep–Nov | 7° | 16° |
How much rain does Southampton get?
Southampton gets 867 mm of precipitation in an average year, spread over about 190 days with measurable rain. That is fewer rainy days than 58% of the UK.
November is the wettest month, with 108 mm. May is the driest, with 49 mm. November has the most rainy days, about 20.
The longest dry spell in the last five years lasted 34 days, to August 1, 2022.
From October 2025 to September 2026 Southampton got 828 mm of rain, against a normal of 867 mm for those months. January 2026 had the most, with 207 mm.
Southampton weather by month
Southampton weather in January
In January, Southampton averages a high of 9°C and a low of 2°C. It gets 94 mm of precipitation over about 19 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The January record high is 14°C (1998) and the record low is -13°C (1979).
Southampton weather in February
In February, Southampton averages a high of 9°C and a low of 1°C. It gets 67 mm of precipitation over about 17 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The February record high is 18°C (2019) and the record low is -11°C (2012).
Southampton weather in March
In March, Southampton averages a high of 12°C and a low of 3°C. It gets 62 mm of precipitation over about 17 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The March record high is 21°C (2012) and the record low is -8°C (1986).
Southampton weather in April
In April, Southampton averages a high of 14°C and a low of 4°C. It gets 59 mm of precipitation over about 14 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The April record high is 26°C (2025) and the record low is -6°C (1996).
Southampton weather in May
In May, Southampton averages a high of 17°C and a low of 7°C. It gets 49 mm of precipitation over about 13 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The May record high is 32°C (2026) and the record low is -3°C (1982). May is one of the most comfortable months to visit.
Southampton weather in June
In June, Southampton averages a high of 20°C and a low of 10°C. It gets 54 mm of precipitation over about 12 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The June record high is 36°C (2026) and the record low is 1°C (2001). June is one of the most comfortable months to visit.
Southampton weather in July
In July, Southampton averages a high of 22°C and a low of 12°C. It gets 49 mm of precipitation over about 12 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The July record high is 34°C (2006) and the record low is 3°C (1970). July is one of the most comfortable months to visit.
Southampton weather in August
In August, Southampton averages a high of 22°C and a low of 12°C. It gets 57 mm of precipitation over about 14 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The August record high is 34°C (1990) and the record low is 2°C (1970). August is one of the most comfortable months to visit.
Southampton weather in September
In September, Southampton averages a high of 19°C and a low of 9°C. It gets 69 mm of precipitation over about 15 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The September record high is 29°C (2023) and the record low is -2°C (1990). September is one of the most comfortable months to visit.
Southampton weather in October
In October, Southampton averages a high of 16°C and a low of 7°C. It gets 101 mm of precipitation over about 19 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The October record high is 23°C (2011) and the record low is -7°C (1983).
Southampton weather in November
In November, Southampton averages a high of 12°C and a low of 4°C. It gets 108 mm of precipitation over about 20 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The November record high is 18°C (1996) and the record low is -9°C (1993).
Southampton weather in December
In December, Southampton averages a high of 9°C and a low of 2°C. It gets 99 mm of precipitation over about 19 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The December record high is 16°C (1979) and the record low is -11°C (2010).
Sunshine, humidity and wind in Southampton
June is the sunniest month in Southampton, with estimated sunshine of 41% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 23%. The annual cloud-cover estimate is 32% of daylight hours; it is not a measurement of sunshine duration. Southampton is sunnier than 77% of the UK.
Humidity peaks in December at 88% and is lowest in April at 71%.
First and last freeze in Southampton
The first fall freeze in Southampton typically comes around October 19, and the last spring freeze around April 30. That leaves a frost-free growing season of about 172 days.
Southampton weather records
These records cover HURN during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Southampton station is 36°C, on June 24, 2026. The coldest is -13°C, on January 3, 1979.
The wettest day in the available station history brought 54 mm of precipitation, on December 31, 2000.
42 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.3°C per decade since 1970.
The best time to visit Southampton
The most comfortable time to visit is typically May to September, when daytime highs sit near 20°C.
Winter (December–February) is chilly, with average highs around 9°C and lows near 2°C.
Spring (March–May) is mild, with average highs around 14°C and lows near 5°C.
Summer (June–August) is warm, with average highs around 21°C and lows near 11°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 16°C and lows near 7°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 2° | 9° | 94 mm | 19 | 87% | 30% | 14° | -13° |
| February | 1° | 9° | 67 mm | 17 | 83% | 26% | 18° | -11° |
| March | 3° | 12° | 62 mm | 17 | 79% | 32% | 21° | -8° |
| April | 4° | 14° | 59 mm | 14 | 71% | 40% | 26° | -6° |
| May | 7° | 17° | 49 mm | 13 | 73% | 37% | 32° | -3° |
| June | 10° | 20° | 54 mm | 12 | 72% | 41% | 36° | 1° |
| July | 12° | 22° | 49 mm | 12 | 73% | 37% | 34° | 3° |
| August | 12° | 22° | 57 mm | 14 | 75% | 36% | 34° | 2° |
| September | 9° | 19° | 69 mm | 15 | 79% | 33% | 29° | -2° |
| October | 7° | 16° | 101 mm | 19 | 86% | 26% | 23° | -7° |
| November | 4° | 12° | 108 mm | 20 | 87% | 28% | 18° | -9° |
| December | 2° | 9° | 99 mm | 19 | 88% | 23% | 16° | -11° |
Station: HURN, 33 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Southampton climate questions
How much rain does Southampton get?
Southampton gets 867 mm of precipitation in an average year, over about 190 rainy days.
What is the wettest month in Southampton?
November is the wettest month in Southampton, with 108 mm. May is the driest, with 49 mm.
How many rainy days does Southampton have a year?
Southampton has about 190 days with measurable rain in an average year. November has the most, about 20.
What is the hottest month in Southampton?
July is the warmest month in Southampton, with an average high of 22°C.
What is the coldest month in Southampton?
February is the coldest month in Southampton, with an average low of 1°C.
What is the record high temperature in Southampton?
Within the available 1970–2026 station history, the record high at the Southampton station is 36°C, set on June 24, 2026. The record low is -13°C, on January 3, 1979.
What is the sunniest month in Southampton?
June is the sunniest month in Southampton, with estimated sunshine of 41% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Southampton?
The first fall freeze in Southampton typically comes around October 19. The last spring freeze is around April 30.
What is the best time to visit Southampton?
The most comfortable time to visit is typically May to September, when daytime highs sit near 20°C.