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Colchester, 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 Colchester, England?
Colchester, England gets 584 mm of precipitation a year over about 148 rainy days. July is the warmest month (average high 23°C) and January the coldest (average low 1°C).
Oceanic climate
Colchester, England has warm summers and chilly winters. Daytime highs range from about 8°C in January to 23°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 21°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 8° |
| Spring | Mar–May | 4° | 14° |
| Summer | Jun–Aug | 11° | 22° |
| Autumn | Sep–Nov | 7° | 16° |
How much rain does Colchester get?
Colchester gets 584 mm of precipitation in an average year, spread over about 148 days with measurable rain. That is fewer rainy days than 99% of the UK.
November is the wettest month, with 60 mm. April is the driest, with 36 mm. January has the most rainy days, about 16.
From October 2025 to September 2026 Colchester got 148 mm of rain, against a normal of 584 mm for those months. October 2025 had the most, with 37 mm.
Colchester weather by month
Colchester weather in January
In January, Colchester averages a high of 8°C and a low of 1°C. It gets 50 mm of precipitation over about 16 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The January record high is 16°C (2015) and the record low is -16°C (1985).
Colchester weather in February
In February, Colchester averages a high of 8°C and a low of 1°C. It gets 42 mm of precipitation over about 13 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The February record high is 18°C (2004) and the record low is -14°C (2012).
Colchester weather in March
In March, Colchester averages a high of 11°C and a low of 3°C. It gets 37 mm of precipitation over about 12 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The March record high is 21°C (1990) and the record low is -7°C (2006).
Colchester weather in April
In April, Colchester averages a high of 14°C and a low of 4°C. It gets 36 mm of precipitation over about 11 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The April record high is 25°C (2018) and the record low is -6°C (2012).
Colchester weather in May
In May, Colchester averages a high of 18°C and a low of 7°C. It gets 46 mm of precipitation over about 10 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 -4°C (1996). May is one of the most comfortable months to visit.
Colchester weather in June
In June, Colchester averages a high of 21°C and a low of 9°C. It gets 52 mm of precipitation over about 10 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2026) and the record low is -1°C (2012). June is one of the most comfortable months to visit.
Colchester weather in July
In July, Colchester averages a high of 23°C and a low of 12°C. It gets 44 mm of precipitation over about 11 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The July record high is 34°C (2019) and the record low is 2°C (1971). July is one of the most comfortable months to visit.
Colchester weather in August
In August, Colchester averages a high of 23°C and a low of 12°C. It gets 57 mm of precipitation over about 11 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The August record high is 35°C (2003) and the record low is 3°C (1987). August is one of the most comfortable months to visit.
Colchester weather in September
In September, Colchester averages a high of 19°C and a low of 9°C. It gets 47 mm of precipitation over about 11 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The September record high is 31°C (1973) and the record low is 0°C (1979). September is one of the most comfortable months to visit.
Colchester weather in October
In October, Colchester averages a high of 16°C and a low of 7°C. It gets 56 mm of precipitation over about 13 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (2011) and the record low is -6°C (1997).
Colchester weather in November
In November, Colchester averages a high of 11°C and a low of 3°C. It gets 60 mm of precipitation over about 15 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The November record high is 18°C (2010) and the record low is -8°C (1985).
Colchester weather in December
In December, Colchester averages a high of 8°C and a low of 1°C. It gets 55 mm of precipitation over about 15 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The December record high is 16°C (1974) and the record low is -14°C (2010).
Sunshine, humidity and wind in Colchester
April is the sunniest month in Colchester, with estimated sunshine of 40% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 23%. The annual cloud-cover estimate is 33% of daylight hours; it is not a measurement of sunshine duration. Colchester is sunnier than 83% of the UK.
Humidity peaks in December at 88% and is lowest in April at 74%.
First and last freeze in Colchester
The first fall freeze in Colchester typically comes around October 23, and the last spring freeze around May 2. That leaves a frost-free growing season of about 174 days.
Colchester weather records
These records cover EAST BERGHOLT during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Colchester station is 37°C, on June 25, 2026. The coldest is -16°C, on January 8, 1985.
The wettest day in the available station history brought 65 mm of precipitation, on August 3, 2002.
44 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 Colchester
The most comfortable time to visit is typically May to September, when daytime highs sit near 21°C.
Winter (December–February) is chilly, with average highs around 8°C and lows near 1°C.
Spring (March–May) is mild, with average highs around 14°C and lows near 4°C.
Summer (June–August) is warm, with average highs around 22°C and lows near 11°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 15°C and lows near 7°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 1° | 8° | 50 mm | 16 | 86% | 32% | 16° | -16° |
| February | 1° | 8° | 42 mm | 13 | 82% | 28% | 18° | -14° |
| March | 3° | 11° | 37 mm | 12 | 79% | 33% | 21° | -7° |
| April | 4° | 14° | 36 mm | 11 | 74% | 40% | 25° | -6° |
| May | 7° | 18° | 46 mm | 10 | 77% | 37% | 32° | -4° |
| June | 9° | 21° | 52 mm | 10 | 74% | 40% | 37° | -1° |
| July | 12° | 23° | 44 mm | 11 | 74% | 36% | 34° | 2° |
| August | 12° | 23° | 57 mm | 11 | 74% | 40% | 35° | 3° |
| September | 9° | 19° | 47 mm | 11 | 79% | 35% | 31° | 0° |
| October | 7° | 16° | 56 mm | 13 | 84% | 28% | 28° | -6° |
| November | 3° | 11° | 60 mm | 15 | 87% | 29% | 18° | -8° |
| December | 1° | 8° | 55 mm | 15 | 88% | 23% | 16° | -14° |
Station: EAST BERGHOLT, 11 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.
Colchester climate questions
How much rain does Colchester get?
Colchester gets 584 mm of precipitation in an average year, over about 148 rainy days.
What is the wettest month in Colchester?
November is the wettest month in Colchester, with 60 mm. April is the driest, with 36 mm.
How many rainy days does Colchester have a year?
Colchester has about 148 days with measurable rain in an average year. January has the most, about 16.
What is the hottest month in Colchester?
July is the warmest month in Colchester, with an average high of 23°C.
What is the coldest month in Colchester?
January is the coldest month in Colchester, with an average low of 1°C.
What is the record high temperature in Colchester?
Within the available 1970–2026 station history, the record high at the Colchester station is 37°C, set on June 25, 2026. The record low is -16°C, on January 8, 1985.
What is the sunniest month in Colchester?
April is the sunniest month in Colchester, with estimated sunshine of 40% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Colchester?
The first fall freeze in Colchester typically comes around October 23. The last spring freeze is around May 2.
What is the best time to visit Colchester?
The most comfortable time to visit is typically May to September, when daytime highs sit near 21°C.