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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Sizewell, United Kingdom, with an average temperature varying between 7.1°C (44.8°F) and 4.6°C (40.3°F). Sizewell witnesses its lowest temperatures in January and February, reaching an average of 7.1°C (44.8°F). Weather in January »
Weather in February
February, the last month of the winter in Sizewell, is another chilly month, with an average temperature ranging between min 4.3°C (39.7°F) and max 7.1°C (44.8°F). Sizewell's lowest temperatures tend to occur in January and February, with an average high-temperature of 7.1°C (44.8°F). Weather in February »
Weather in March
March, the first month of the spring in Sizewell, is also a frosty month, with an average temperature fluctuating between 8.3°C (46.9°F) and 5.3°C (41.5°F). March's arrival shows an average high-temperature of a still frosty 8.3°C (46.9°F), hardly different from the previous month. Weather in March »
Weather in April
April in Sizewell, United Kingdom, is a fresh spring month, with temperature in the range of an average low of 7.3°C (45.1°F) and an average high of 10.8°C (51.4°F). The onset of April brings with it an average high-temperature of a fresh 10.8°C (51.4°F), showing a negligible variation from the month before. Weather in April »
Weather in May
May, the last month of the spring in Sizewell, is a moderate month, with an average temperature fluctuating between 9.7°C (49.5°F) and 13.3°C (55.9°F). As April transitions into May, Sizewell records an average high-temperature of a mild 13.3°C (55.9°F), showing a gentle shift from the preceding month. Weather in May »
Weather in June
The first month of the summer, June, is an enjoyable month in Sizewell, United Kingdom, with an average temperature ranging between max 16.2°C (61.2°F) and min 12.3°C (54.1°F). June brings an average high-temperature of a comfortable 16.2°C (61.2°F), nearly identical to the preceding month. Weather in June »
Weather in July
July, the same as June, is another comfortable summer month in Sizewell, United Kingdom, with temperature in the range of an average high of 18.8°C (65.8°F) and an average low of 15°C (59°F). July reports an average high-temperature of a still refreshing 18.8°C (65.8°F), slightly varied from June's 16.2°C (61.2°F). Weather in July »
Weather in August
August, the last month of the summer in Sizewell, is another refreshing month, with temperature in the range of an average high of 19.7°C (67.5°F) and an average low of 15.8°C (60.4°F). August, with an average high of 19.7°C (67.5°F) and a low of 15.8°C (60.4°F), signifies the warmest month of the year. Weather in August »
Weather in September
September, the first month of the autumn in Sizewell, is still a comfortable month, with temperature in the range of an average low of 14.2°C (57.6°F) and an average high of 17.6°C (63.7°F). The beginning of September records an average high-temperature of a still refreshing 17.6°C (63.7°F), almost echoing the conditions of the previous month. Weather in September »
Weather in October
October, like September, is a moderate autumn month in Sizewell, United Kingdom, with an average temperature ranging between min 11.8°C (53.2°F) and max 14.7°C (58.5°F). The introduction of October notes a subtle temperature variation to a still refreshing 14.7°C (58.5°F) from September's 17.6°C (63.7°F). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Sizewell, United Kingdom, with an average temperature varying between 10.8°C (51.4°F) and 8.4°C (47.1°F). With the commencement of November, Sizewell records a moderate temperature decline, with the average high easing from October's refreshing 14.7°C (58.5°F) to a fresh 10.8°C (51.4°F). Weather in November »
Weather in December
December, the first month of the winter in Sizewell, is also a frosty month, with an average temperature fluctuating between 8.3°C (46.9°F) and 5.8°C (42.4°F). The transition from November to December sees an average high-temperature of a chilly 8.3°C (46.9°F), indicating a minor variance from the prior month. Weather in December »
Updated: Feb 6, 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
What month is the coldest in Sizewell?
January and February represent the coldest period in Sizewell, United Kingdom, with an average high-temperature of 7.1°C (44.8°F).
What is the most humid month in Sizewell?
The months with the highest humidity are January, June and December, with an average relative humidity of 83%.
How much does it rain in Sizewell?
Throughout the year, in Sizewell, United Kingdom, there are 188.4 rainfall days, and 486mm (19.13") of precipitation is accumulated.
When does it snow in Sizewell?
Months with snowfall in Sizewell, United Kingdom, are January through March, November and December.
When does it snow the most in Sizewell?
January is the month with the most snowfall. Snow falls for 2.9 days and accumulates 21mm (0.83") of snow.
How many days does it snow in Sizewell?
Throughout the year, in Sizewell, there are 8 snowfall days, and 51mm (2.01") of snow is accumulated.
What is the month with the lowest UV index in Sizewell?
The months with the lowest UV index in Sizewell, United Kingdom, are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Sizewell?
The month with the least sunshine in Sizewell is February, with an average of 4h of sunshine.
What is the driest month in Sizewell?
The month with the least rainfall is April, when the rain falls for 13.5 days and typically collects 21mm (0.83") of precipitation.
When it does not snow in Sizewell?
April through October are months without snowfall in Sizewell, United Kingdom.
When are the longest days in Sizewell?
June has the longest days of the year in Sizewell, United Kingdom, with an average of 16h and 42min of daylight.
When is the highest UV index in Sizewell?
The months with the highest UV index are June and July, with an average maximum UV index of 5.
What is the wettest month in Sizewell?
The month with the most rainfall is July, when the rain falls for 19.1 days and typically aggregates up to 57mm (2.24") of precipitation.
What is the hottest time of year in Sizewell?
August is the warmest month, with an average high-temperature of 19.7°C (67.5°F) and an average low-temperature of 15.8°C (60.4°F).
What is the least humid month in Sizewell?
The months with the lowest humidity in Sizewell, United Kingdom, are August and September, with an average relative humidity of 77%.
What month has the most sunshine in Sizewell?
The month with the most sunshine is August, with an average of 9.3h of sunshine.
When is Daylight Saving Time (DST) in Sizewell?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Sizewell, 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.
What is the month with the shortest days in Sizewell?
The month with the shortest days in Sizewell is December, with an average of 7h and 48min of daylight.
Average temperature
Sizewell, United Kingdom
The warmest month (with the highest average high temperature) is August (19.7°C).
The months with the lowest average high temperature are January and February (7.1°C).
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure
Sizewell, United Kingdom
- Average pressure in January:
1014.1mbar - Average pressure in February:
1013.5mbar - Average pressure in March:
1015.3mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1014.6mbar - Average pressure in September:
1016.6mbar - Average pressure in October:
1015mbar - Average pressure in November:
1010.4mbar - Average pressure in December:
1013.9mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed
Sizewell, United Kingdom
- Average wind speed in January:
26.1km/h - Average wind speed in February:
26km/h - Average wind speed in March:
22.9km/h - Average wind speed in April:
19.5km/h - Average wind speed in May:
19.3km/h - Average wind speed in June:
18.4km/h
- Average wind speed in July:
17.7km/h - Average wind speed in August:
19km/h - Average wind speed in September:
20.4km/h - Average wind speed in October:
23.9km/h - Average wind speed in November:
26.1km/h - Average wind speed in December:
27.7km/h
The windiest month (with the highest average wind speed) is December (27.7km/h).
The calmest month (with the lowest average wind speed) is July (17.7km/h).
Average humidity
Sizewell, United Kingdom
The months with the highest relative humidity are January, June and December (83%).
The months with the lowest relative humidity are August and September (77%).
Average rainfall
Sizewell, United Kingdom
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days
Sizewell, United Kingdom
- Average rainfall days in January:
15.3 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
17.5 days - Average rainfall days in November:
18.2 days - Average rainfall days in December:
16.5 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (12.3 days).
Average snowfall
Sizewell, United Kingdom
The month with the highest snowfall is January (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Sizewell, United Kingdom
- Average snowfall days in January:
2.9 days - Average snowfall days in February:
2.6 days - Average snowfall days in March:
0.9 days - Average snowfall days in April:
0.1 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:
0.3 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Sizewell, United Kingdom
- Average daylight in January:
8h and 2min - Average daylight in February:
9h and 5min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 4min - Average daylight in June:
16h and 4min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 4min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
7h and 5min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
8h and 5min - Average sunshine in August:
9h and 2min - Average sunshine in September:
8h and 1min - Average sunshine in October:
4h and 4min - Average sunshine in November:
4h and 1min - Average sunshine in December:
4h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Sizewell, United Kingdom
- Average sunshine days in January:
11.2 days - Average sunshine days in February:
11 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
14 days - Average sunshine days in May:
14 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
8.9 days - Average sunshine days in August:
9.5 days - Average sunshine days in September:
11.9 days - Average sunshine days in October:
10.4 days - Average sunshine days in November:
8 days - Average sunshine days in December:
9.9 days
The months with the most sunshine days are April and May (14 days).
The month with the least sunshine days is November (8 days).
Average UV index
Sizewell, 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, November and December (UV index 2).
Average cloud cover
Sizewell, United Kingdom
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility
Sizewell, United Kingdom
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
