Climate averages 1991–2020
Colchester weather
in July.
A mild, moderately wet month: one of the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Colchester: daytime highs average 20.7°C and nights cool to about 14.2°C. By daytime temperature it is one of the warmest months of the year.
Expect about 58 mm of rain on roughly 12 days, which makes July a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 12 min on an average July day.
The nearest other city in this atlas is Ipswich (26 km away). In July its highs average 20.8°C, about as warm as Colchester, with 57 mm of rain.
Among the 143 cities listed in the United Kingdom, Colchester ranks joint 49th of 143 for the warmest July highs and joint 38th of 143 for the driest July (rainfall, lowest first). The mean July high of those 143 cities is 20.0°C; Colchester is 0.8°C warmer than that mean.
From July to August, average highs stay level at 20.7°C, and monthly rainfall rises from 58 mm to 64 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Colchester climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C3.0°C | 3.0°C | 57 | 12.1 | 8.38 h |
| February | 7.4°C2.8°C | 2.8°C | 47 | 9.8 | 9.910 h |
| March | 9.5°C4.0°C | 4.0°C | 43 | 10.2 | 11.812 h |
| April | 12.2°C5.9°C | 5.9°C | 45 | 10.4 | 13.914 h |
| May | 15.3°C8.9°C | 8.9°C | 53 | 10.0 | 15.616 h |
| June | 18.2°C11.9°C | 11.9°C | 57 | 10.8 | 16.617 h |
| July, selected | 20.7°C14.2°C | 14.2°C | 58 | 11.8 | 16.216 h |
| August | 20.7°C14.4°C | 14.4°C | 64 | 10.7 | 14.715 h |
| September | 18.1°C12.3°C | 12.3°C | 52 | 10.3 | 12.713 h |
| October | 14.3°C9.5°C | 9.5°C | 64 | 11.4 | 10.711 h |
| November | 10.3°C6.0°C | 6.0°C | 61 | 11.1 | 8.99 h |
| December | 7.6°C3.7°C | 3.7°C | 62 | 11.6 | 7.98 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Ipswich in JulyUnited Kingdom · 26 kmHigh 20.8°C · Low 14.0°C · 57 mm rain
- Chelmsford in JulyUnited Kingdom · 34 kmHigh 21.2°C · Low 13.8°C · 53 mm rain
- Southend-on-Sea in JulyUnited Kingdom · 41 kmHigh 20.8°C · Low 14.4°C · 56 mm rain
- Basildon in JulyUnited Kingdom · 47 kmHigh 21.0°C · Low 14.1°C · 52 mm rain
- Harlow in JulyUnited Kingdom · 56 kmHigh 21.4°C · Low 13.2°C · 58 mm rain
- Gillingham in JulyUnited Kingdom · 61 kmHigh 21.3°C · Low 13.9°C · 52 mm rain
- Grays in JulyUnited Kingdom · 61 kmHigh 21.5°C · Low 13.9°C · 53 mm rain
- Dagenham in JulyUnited Kingdom · 63 kmHigh 21.5°C · Low 13.9°C · 53 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Colchester) is explained once on the Colchester year overview and on the Sources, method and limits page.