Best year time to visit Sizewell

General weather information about Sizewell

Average annual temperature is 11.4 °C

Absolute maximum temperature: 27.6 °C

Absolute minimum temperature: -4.2 °C

Number of sunny days: 134 days

Number of rainy days: 231 days

Look at detailed online map of Sizewell

* Weather data for Sizewell United Kingdom is based on climate observations for 2026 year

Sizewell air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.514.614.714.718.525.325.524.727.623.414.714.0
Average daytime temperature (°C)8.39.69.711.315.020.020.720.921.216.610.49.7
Average temperature (°C)5.56.47.18.311.716.617.217.117.713.47.77.5
Average night temperature (°C)2.43.64.45.18.512.913.613.414.210.35.04.8
Absolute minimum temperature (°C)-4.2-2.4-3.41.35.59.510.08.89.43.5-2.0-3.4

Sizewell monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.39.911.913.915.716.716.214.612.710.68.87.8
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)4.24.94.79.511.912.410.711.29.15.74.42.9
Precipitation (mm)5859258612313187601356781
Sunny days1617191422391510117
Rainy days15113021178282215211924
Snow days000000000000

Sizewell - weather forecast by months

Sizewell weather in januarySizewell weather in februarySizewell weather in marchSizewell weather in aprilSizewell weather in maySizewell weather in juneSizewell weather in julySizewell weather in augustSizewell weather in septemberSizewell weather in octoberSizewell weather in novemberSizewell weather in december

Best time to visit Sizewell:

The best time to visit Sizewell during the most sunny months:

  • May — 11.9(h)
  • June — 12.4(h)
  • July — 10.7(h)
  • August — 11.2(h)

Months with the longest average daylight duration in Sizewell:

  • May — 15.7(h)
  • June — 16.7(h)
  • July — 16.2(h)

The largest precipitation sum in Sizewell is at

  • March — 92(mm)
  • July — 131(mm)
  • October — 135(mm)

    • Weather forecast in the closest to Sizewell admin centers

    Weather forecast in the closest towns to Sizewell

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    Frequently asked questions

    When is the best time to visit Sizewell?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sizewell.
    What is the weather like in Sizewell?
    See average temperature, rainfall and daylight hours for Sizewell by month in the table above.
    How many sunny days does Sizewell have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sizewell throughout the year.