Best year time to visit South Wales

General weather information about South Wales

Average annual temperature is 9.6 °C

Absolute maximum temperature: 31.1 °C

Absolute minimum temperature: -25.2 °C

Number of sunny days: 112 days

Number of rainy days: 216 days

Number of snow days: 37 days

Look at detailed online map of South Wales

* Weather data for South Wales United States is based on climate observations for 2026 year

South Wales air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.716.812.626.329.631.131.129.630.527.814.514.1
Average daytime temperature (°C)3.25.55.115.719.122.825.823.621.815.27.66.2
Average temperature (°C)-0.3-0.60.69.012.917.620.918.816.811.63.73.0
Average night temperature (°C)-3.0-5.1-2.93.87.213.116.915.212.88.60.40.4
Absolute minimum temperature (°C)-12.3-25.2-13.3-6.40.18.912.79.56.0-0.2-7.0-6.2

South Wales monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.510.511.913.414.615.315.013.912.511.19.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)2.05.25.48.211.110.511.39.59.05.35.02.8
Precipitation (mm)1509012012576119136114389588111
Sunny days28713211065141088
Rainy days151414161020252616211920
Snow days14610100000033

South Wales - weather forecast by months

South Wales weather in januarySouth Wales weather in februarySouth Wales weather in marchSouth Wales weather in aprilSouth Wales weather in maySouth Wales weather in juneSouth Wales weather in julySouth Wales weather in augustSouth Wales weather in septemberSouth Wales weather in octoberSouth Wales weather in novemberSouth Wales weather in december

Best time to visit South Wales:

The best time to visit South Wales during the most sunny months:

  • May — 11.1(h)
  • June — 10.5(h)
  • July — 11.3(h)
  • August — 9.5(h)
  • September — 9.0(h)

Months with the longest average daylight duration in South Wales:

  • June — 15.3(h)

The largest precipitation sum in South Wales is at

  • January — 150(mm)
  • July — 136(mm)

    • Weather forecast in the closest to South Wales admin centers

    Weather forecast in the closest towns to South Wales

    Explore South Wales

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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