Best year time to visit Old St. Mellons

General weather information about Old St. Mellons

Average annual temperature is 11.1 °C

Absolute maximum temperature: 26.7 °C

Absolute minimum temperature: -4.0 °C

Number of sunny days: 111 days

Number of rainy days: 253 days

Number of snow days: 1 day

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* Weather data for Old St. Mellons United Kingdom is based on climate observations for 2026 year

Old St. Mellons air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.911.313.016.220.025.724.524.126.720.514.212.2
Average daytime temperature (°C)7.78.79.311.716.921.418.619.520.015.010.29.4
Average temperature (°C)5.26.06.98.512.917.115.616.016.612.37.77.4
Average night temperature (°C)2.73.14.95.08.912.712.412.513.29.95.25.2
Absolute minimum temperature (°C)-2.8-1.9-1.20.76.47.78.710.16.94.2-2.8-4.0

Old St. Mellons 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)8.410.011.913.915.616.616.114.612.710.78.97.9
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)4.04.84.67.611.812.49.99.47.45.94.12.1
Precipitation (mm)17021185945161187110106176108188
Sunny days14154916151587116
Rainy days161327211515302622241925
Snow days100000000000

Old St. Mellons - weather forecast by months

Old St. Mellons weather in januaryOld St. Mellons weather in februaryOld St. Mellons weather in marchOld St. Mellons weather in aprilOld St. Mellons weather in mayOld St. Mellons weather in juneOld St. Mellons weather in julyOld St. Mellons weather in augustOld St. Mellons weather in septemberOld St. Mellons weather in octoberOld St. Mellons weather in novemberOld St. Mellons weather in december

Best time to visit Old St. Mellons:

The best time to visit Old St. Mellons during the most sunny months:

  • May — 11.8(h)
  • June — 12.4(h)
  • July — 9.9(h)
  • August — 9.4(h)

Months with the longest average daylight duration in Old St. Mellons:

  • May — 15.6(h)
  • June — 16.6(h)
  • July — 16.1(h)

The largest precipitation sum in Old St. Mellons is at

  • January — 170(mm)
  • March — 185(mm)
  • July — 187(mm)
  • October — 176(mm)
  • December — 188(mm)

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    Frequently asked questions

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