Chelmsford Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chelmsford.
Climate overview of Chelmsford
Chelmsford, Essex, United Kingdom, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 9°C (48°F).
Annual rain/snowfall is moderate at around 674 mm (27 in), with August being the wettest month. The city also has warm summers and cold winters. Sunshine peaks in July, when the city sees around 7.0 hours of sunshine per day.
Chelmsford Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chelmsford - and find the best time to visit.
Monthly Temperature in Chelmsford
Visitors to Chelmsford can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 23°C (73°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 14°C (57°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Chelmsford
Generally, Chelmsford experiences moderate precipitation patterns, averaging 674 mm (27 in) yearly. Despite minor fluctuations, Chelmsford enjoys fairly consistent precipitation throughout the year. In August, you can expect around 65 mm (2.6 in) of precipitation, while in March, Chelmsford receives about 45 mm (1.8 in). For more details, please visit our Chelmsford Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Chelmsford
Chelmsford can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Chelmsford
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July and August
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Chelmsford
What is the best time to visit Chelmsford?
June, July, August and September typically offer the most optimal weather in Chelmsford. In contrast, January, February and December tend to have less optimal conditions. Chelmsford has warm summers and cold winters.
What temperatures can I expect in Chelmsford?
Daytime highs range from 9°C (48°F) in January to 23°C (73°F) in July. Nighttime lows range from 3°C (37°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Chelmsford get?
Annual rainfall is around 674 mm (27 in). August is the wettest month with 65 mm (2.6 in), while March is the driest with 45 mm (1.8 in).
How sunny is Chelmsford?
Chelmsford receives around 1,609 hours of sunshine per year. July is the sunniest month with 211 hours, while December is the cloudiest with just 49 hours.
Chelmsford 3-Day Forecast
Chelmsford on the map
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