Colchester weather forecast
UK towns · Essex, England · 51.89°N 0.90°E
Colchester, in Essex, England, has its warmest weather in August, when daytime temperatures average 22.7°C, while January nights are the coldest at around 1.9°C. The town sees roughly 721mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 7.6° | 1.9° | 54mm | 11 |
| Feb | 9.8° | 3.5° | 57mm | 12 |
| Mar | 10.6° | 3.8° | 60mm | 12 |
| Apr | 12.8° | 4.5° | 38mm | 9 |
| May | 16.7° | 8.1° | 64mm | 12 |
| Jun | 20.4° | 11.4° | 52mm | 9 |
| Jul | 21.9° | 13.4° | 60mm | 12 |
| Aug | 22.7° | 14.1° | 53mm | 9 |
| Sep | 20.2° | 12° | 54mm | 10 |
| Oct | 15.7° | 9.1° | 97mm | 14 |
| Nov | 11° | 5.4° | 61mm | 10 |
| Dec | 8.4° | 3.7° | 71mm | 12 |
Seasons in Colchester
Spring (March–May). Daytime highs in Colchester climb from 10.6°C in March to 16.7°C by May, while nights ease from 3.8°C to 8.1°C. The season brings around 162mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 21.7°C, peaking in August at 22.7°C. June is usually the driest of the summer months (52mm over ~9 rainy days). Around the June solstice, Colchester gets roughly 16.5 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 20.2°C in September to 11°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (97mm).
Winter (December–February). Nights average 3.0°C, with January the coldest month (average low 1.9°C, daytime high 7.6°C). Expect about 35 days with measurable rain over the three months, and only around 7.5 hours of daylight in mid-December.
How Colchester compares
| Colchester | UK town average | |
|---|---|---|
| Annual rainfall | 721mm | 1054mm |
| Rainy days per year | 132 | 167 |
| Summer daytime high | 21.7°C | 19.7°C |
| Winter night low | 3.0°C | 3.4°C |
Colchester is about 32% drier than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Colchester weather FAQs
What is the warmest month in Colchester?
August is typically the warmest month in Colchester, with average daytime highs of 22.7°C. Summer afternoons (June–August) average around 21.7°C.
What is the wettest month in Colchester?
October is usually the wettest month, with around 97mm of rain over roughly 14 rainy days. April is typically the driest (38mm).
How much does it rain in Colchester per year?
Colchester receives roughly 721mm of precipitation per year, spread over about 132 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Colchester?
Winter nights (December–February) in Colchester average around 3.0°C, with January typically the coldest month (average low 1.9°C).
When is the best time to visit Colchester for good weather?
Late spring and summer offer the most reliable weather in Colchester. June is typically the driest of the warm months (52mm of rain), while August is the warmest, averaging 22.7°C by day — and near the June solstice there are around 16 hours of daylight to enjoy.
How does Colchester's weather compare with the rest of the UK?
Colchester receives 721mm of rain a year, about 32% drier than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 21.7°C against a UK-town average of 19.7°C, and winter nights average 3.0°C versus 3.4°C.
Is it going to rain in Colchester?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, Colchester averages 132 rainy days a year, with October the wettest month (97mm) and April the driest (38mm).
What is the 7-day forecast for Colchester?
See the live hourly and 7-day forecast for day-by-day temperatures and rain chance. The figures on this page are long-term climate averages from 2020–2024, not the live forecast.