Best year time to visit Merthyr Tewdrig

General weather information about Merthyr Tewdrig

Average annual temperature is 11.5 °C

Absolute maximum temperature: 29.1 °C

Absolute minimum temperature: -3.8 °C

Number of sunny days: 107 days

Number of rainy days: 258 days

Look at detailed online map of Merthyr Tewdrig

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

Merthyr Tewdrig air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.912.814.117.721.627.726.124.929.120.914.912.9
Average daytime temperature (°C)8.29.610.212.717.923.119.620.421.215.810.79.8
Average temperature (°C)5.36.27.68.913.418.016.416.617.212.88.07.7
Average night temperature (°C)2.43.05.24.98.713.012.812.813.19.95.15.2
Absolute minimum temperature (°C)-3.8-2.5-1.0-0.45.87.58.99.86.12.6-3.5-2.9

Merthyr Tewdrig 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)4.04.54.47.111.212.39.79.57.75.94.02.1
Precipitation (mm)127151501054960136987412095174
Sunny days1515481515238796
Rainy days161327221615292822242125
Snow days000000000000

Merthyr Tewdrig - weather forecast by months

Merthyr Tewdrig weather in januaryMerthyr Tewdrig weather in februaryMerthyr Tewdrig weather in marchMerthyr Tewdrig weather in aprilMerthyr Tewdrig weather in mayMerthyr Tewdrig weather in juneMerthyr Tewdrig weather in julyMerthyr Tewdrig weather in augustMerthyr Tewdrig weather in septemberMerthyr Tewdrig weather in octoberMerthyr Tewdrig weather in novemberMerthyr Tewdrig weather in december

Best time to visit Merthyr Tewdrig:

The best time to visit Merthyr Tewdrig during the most sunny months:

  • May — 11.2(h)
  • June — 12.3(h)
  • July — 9.7(h)
  • August — 9.5(h)

Months with the longest average daylight duration in Merthyr Tewdrig:

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

The largest precipitation sum in Merthyr Tewdrig is at

  • January — 127(mm)
  • March — 150(mm)
  • July — 136(mm)
  • December — 174(mm)

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    Frequently asked questions

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