Climate and monthly weather forecastColchester, United Kingdom
Climate and monthly weather forecast
The climate of Colchester
Colchester, situated in the United Kingdom, falls under the Cfb category of the Köppen climate classification. This categorization refers to a marine west coast climate with warm summers. The geographical location of Colchester on the map significantly impacts its weather patterns, rendering it with temperate and relatively wet conditions all year round.A prominent characteristic of Colchester's climate is the narrow temperature range seen throughout the year, with the highest average temperature reaching 21.2°C (70.2°F) in August and the lowest average dropping to 2.9°C (37.2°F) in January. The consistency of rainfall is another defining feature of the town's climate. The heaviest falls during the months of June and July, measuring 54mm (2.13") and 50mm (1.97") respectively, while the lightest precipitation can be observed in April, at 18mm (0.71").
Another crucial element to understand this climate's makeup is its wind behavior. Wind speeds tend to peak in December and January, reaching speeds of 21km/h (13mph) and 20.4km/h (12.7mph) respectively, and slowest in June and July with an average of 14.1km/h (8.8mph) and 14.4km/h (8.9mph) respectively. Finally, relative humidity maintains a generally high level averaging 80% throughout the year, achieving its peak values in January and December, both recording an average of 87%.
The best time to visit Colchester
The months of May to September often promise the best conditions for visiting Colchester. During this period, the weather is pleasantly warm with average high temperatures rising from 15.1°C (59.2°F) in May to a peak of 21.2°C (70.2°F) in August. Additionally, the amount of sunshine is at its highest during these months, reaching up to 8.6 hours per day in August. Even though rainfall slightly increases in the summer months, the warm temperatures and long daylight hours, peaking at 16.6 hours in June, often offset any disruptions caused by rain.The worst time to visit Colchester
Visitors might find the months of November to February less comfortable for a visit to Colchester. During this time, the town experiences its coldest temperatures of the year, dropping to an average low of 2.9°C (37.2°F) in January. Additionally, these months have short daylight hours, with December having the shortest at 7.9 hours per day. Moreover, compared to the other months, these winter months experience a slightly higher amount of rain, with November and December recording 37mm (1.46") and 44mm (1.73") respectively.Spring weather in Colchester
During the spring months of March, April, and May, Colchester sees a gradual increase in temperatures. The highest average temperature ranges from 9.6°C (49.3°F) in March to 15.1°C (59.2°F) in May. Similarly, the lowest average temperature climbs from 4°C (39.2°F) to 8.3°C (46.9°F) over the same period. Rainfall during this season ranges from 27mm (1.06") to 32mm (1.26") while relative humidity hovers around 80%. Daylight hours also increase gradually throughout the spring, starting at 11.9 hours per day in March and reaching 15.7 hours per day in May.Summer weather in Colchester
The summer season in Colchester, encompassing the months of June through August, is characterized by comfortably warm conditions. The highest temperatures during this period range from 18°C (64.4°F) in June to 21.2°C (70.2°F) in August while the lowest fluctuate from 10.9°C (51.6°F) to 14.5°C (58.1°F). Notably, the amount of rainfall peaks at 54mm (2.13") during June but doesn't significantly disrupt outdoor activities, thanks to the extended daylight hours, peaking at 16.6 hours per day in June.Autumn weather in Colchester
September ushers in the autumn season in Colchester with temperatures taking a downward trend. The highest average temperature falls from 18.5°C (65.3°F) in September to 10.5°C (50.9°F) in November. Likewise, the lowest average temperature drops from 12.5°C (54.5°F) to 6.7°C (44.1°F) within the same duration. Rainfall rates vary between 31mm (1.22") in September and 37mm (1.46") in November while the daylight hours gradually reduce from 12.6 per day in September to 8.8 per day in November.Winter weather in Colchester
Winter in Colchester spans December through February, encompassing the coldest months of the year. During this season, the highest average temperature varies from 7.6°C (45.7°F) in December to 6.4°C (43.5°F) in February and the lowest average temperature fluctuates between 4.3°C (39.7°F) and 2.9°C (37.2°F). The months of December and January see the most significant amount of rainfall in winter, recording 44mm (1.73") each. To add to the chilly conditions, daylight hours are at their shortest, with December recording 7.9 hours per day, the lowest throughout the year.Weather in January
The onset of the year in Colchester, United Kingdom, often brings chilly conditions with temperatures rarely straying beyond the range from 2.9°C (37.2°F) to 6.4°C (43.5°F). This cold snap is accompanied by occasional snowfall that adds a layer of frosty beauty to the city. Weather in January »Weather in February
February marks the continuation of winter in the city with weather patterns similar to January. Nevertheless, an increase in snowfall is noticed, making winter sports a highlight of this month. Though sunshine hours are still low, a gradual increase in daylight marks the transition towards spring. Weather in February »Weather in March
The arrival of March brings slight moderation in weather conditions. Temperatures rise to hover within the limits of 4°C (39.2°F) and 9.6°C (49.3°F). The frequency of snowfall decreases significantly, signalling the end of the harsh winter. Weather in March »Weather in April
With the arrival of April, the grasp of winter loses its strength over Colchester. The noticeable increase in average temperature, coupled with decreased rainfall, makes this month more conducive for outdoor activities. The longer daylight hours and increased sunshine offer ample opportunities for sightseeing and exploring the city. Weather in April »Weather in May
May displays a significant shift in Colchester's weather as average temperatures elevate to range between 8.3°C (46.9°F) and 15.1°C (59.2°F), introducing a mild warmth. This month witnesses considerable rainfall that contributes to the fresh and vibrant bloom of spring flowers. Weather in May »Weather in June
June brings the onset of summer, indicating a further increase in temperature. As a highlight, this month receives the highest duration of daylight, amplifying the brilliance of the city under the summer sun. The weather remains fairly warm complemented by regular rainfall that maintains the natural greenery. Weather in June »Weather in July
July, the heart of the summer, is characterized by the warmest weather with temperatures peaking at around 20.8°C (69.4°F). Evenings are comfortably warm with temperatures dipping to around 13.5°C (56.3°F), creating the perfect setting for evening walks and night outings. Weather in July »Weather in August
August continues the trend of warm weather, with the highest average temperatures for the year being observed during this month. August sees less rainfall and wind than previous months, contributing to a calm and comfortable atmosphere throughout the city. Weather in August »Weather in September
September marks the transitional period from summer to autumn in Colchester. Temperatures find a middle ground, ranging between a comfortable 12.5°C (54.5°F) and 18.5°C (65.3°F). Equipped with lesser rainfall than previous months, September allows residents and tourists to make the most out of the final summer days. Weather in September »Weather in October
October ushers in the autumn season in Colchester with a notable drop in average temperature. While consistent rain showers are quite common, the city sees less snowfall than other months of the year. Despite the reduction in daily sunshine hours, the city retains much of its daytime brightness. Weather in October »Weather in November
November witnesses a further decrease in temperatures, setting the ambiance for the advent of winter. Despite the cooling trend, snowfall is not a common occurrence in November. The rainfall is consistent, aiding in maintaining the city's green spaces. Weather in November »Weather in December
December, in the United Kingdom's Colchester, is synonymous with the arrival of winter. The temperatures range between 4.3°C (39.7°F) and 7.6°C (45.7°F), characterizing this final month of the year by cold weather. The first snowflakes typically fall during this month, adding to the festive Christmas spirit. Weather in December »Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, with average temperatures reaching a high of 6.4°C (43.5°F) and a low of 2.9°C (37.2°F), is the coldest month in Colchester.
January and December, with an average relative humidity of 87%, are most humid months.
Throughout the year, in Colchester, there are 182 rainfall days, and 445mm (17.52") of precipitation is accumulated.
Months with snowfall in Colchester are January through March, November and December.
Throughout the year, in Colchester, there are 9.6 snowfall days, and 40mm (1.57") of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Colchester, United Kingdom.
The month with the most snowfall in Colchester, United Kingdom, is February, when snow falls for 3.7 days and typically aggregates up to 16mm (0.63") of snow.
With an average of 3.8h of sunshine, February has the least sunshine of the year.
April is the month with the least rainfall in Colchester. Rain falls for 13.4 days and accumulates 18mm (0.71") of precipitation.
In Colchester, United Kingdom, snow does not fall in April through October.
With an average of 16h and 36min of daylight, June has the longest days of the year.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
July is the month with the most rainfall in Colchester, United Kingdom. Rain falls for 19.8 days and accumulates 54mm (2.13") of precipitation.
August is the warmest month in Colchester, with an average high-temperature of 21.2°C (70.2°F) and an average low-temperature of 14.5°C (58.1°F).
With an average relative humidity of 75%, August is the least humid month in Colchester, United Kingdom.
The month with the most sunshine is August, with an average of 8.6h of sunshine.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
The month with the shortest days is December, with an average of 7h and 54min of daylight.
Average temperature
Colchester, United Kingdom
The warmest month (with the highest average high temperature) is August (21.2°C).
The month with the lowest average high temperature is January (6.4°C).
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure
Colchester, United Kingdom
- Average pressure in January:
1014.3mbar - Average pressure in February:
1013.6mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1016.2mbar
- Average pressure in July:
1015.2mbar - Average pressure in August:
1014.7mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1015.1mbar - Average pressure in November:
1010.5mbar - Average pressure in December:
1014.1mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed
Colchester, United Kingdom
- Average wind speed in January:
20km/h - Average wind speed in February:
20.4km/h - Average wind speed in March:
18.1km/h - Average wind speed in April:
15.2km/h - Average wind speed in May:
15km/h - Average wind speed in June:
14.4km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
14.7km/h - Average wind speed in September:
15.3km/h - Average wind speed in October:
17.8km/h - Average wind speed in November:
19.4km/h - Average wind speed in December:
21km/h
The windiest month (with the highest average wind speed) is December (21km/h).
The calmest month (with the lowest average wind speed) is July (14.1km/h).
Average humidity
Colchester, United Kingdom
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall
Colchester, United Kingdom
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days
Colchester, United Kingdom
- Average rainfall days in January:
14.3 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
15 days - Average rainfall days in December:
15.3 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (11.8 days).
Average snowfall
Colchester, United Kingdom
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Colchester, United Kingdom
- Average snowfall days in January:
2.9 days - Average snowfall days in February:
3.7 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Colchester, United Kingdom
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 12min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 48min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 12min - Average sunshine in May:
7h and 48min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
8h and 24min - Average sunshine in August:
8h and 36min - Average sunshine in September:
7h and 42min - Average sunshine in October:
4h and 36min - Average sunshine in November:
4h and 6min - Average sunshine in December:
4h and 18min
The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days
Colchester, United Kingdom
- Average sunshine days in January:
12.1 days - Average sunshine days in February:
11.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
8.7 days
- Average sunshine days in July:
7.9 days - Average sunshine days in August:
8.6 days - Average sunshine days in September:
13.2 days - Average sunshine days in October:
12.8 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
11.6 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is July (7.9 days).
Average UV index
Colchester, United Kingdom
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Colchester, United Kingdom
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 44).
Average visibility
Colchester, United Kingdom
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (9km).
