Best year time to visit Harlech

General weather information about Harlech

Average annual temperature is 11.2 °C

Absolute maximum temperature: 27.4 °C

Absolute minimum temperature: -4.1 °C

Number of sunny days: 77 days

Number of rainy days: 286 days

Number of snow days: 2 days

Look at detailed online map of Harlech

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

Harlech air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.513.813.816.721.727.223.023.627.418.613.212.2
Average daytime temperature (°C)8.09.09.012.317.021.517.318.119.314.59.99.2
Average temperature (°C)6.16.86.89.013.117.515.215.716.512.28.17.6
Average night temperature (°C)4.04.44.35.69.013.113.013.313.89.95.95.7
Absolute minimum temperature (°C)-3.1-0.6-4.10.66.08.79.811.18.63.6-1.1-2.8

Harlech monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.014.016.016.016.015.013.011.09.07.0
Daylight mean duration (h)8.29.911.914.015.816.816.314.712.710.68.77.7
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)3.54.24.38.211.411.69.48.97.05.53.92.0
Precipitation (mm)2975133611552108357199224252254348
Sunny days5103101513027651
Rainy days251827201617312923252530
Snow days101000000000

Harlech - weather forecast by months

Harlech weather in januaryHarlech weather in februaryHarlech weather in marchHarlech weather in aprilHarlech weather in mayHarlech weather in juneHarlech weather in julyHarlech weather in augustHarlech weather in septemberHarlech weather in octoberHarlech weather in novemberHarlech weather in december

Best time to visit Harlech:

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

  • May — 11.4(h)
  • June — 11.6(h)
  • July — 9.4(h)
  • August — 8.9(h)

Months with the longest average daylight duration in Harlech:

  • May — 15.8(h)
  • June — 16.8(h)
  • July — 16.3(h)

The largest precipitation sum in Harlech is at

  • January — 297(mm)
  • March — 336(mm)
  • July — 357(mm)
  • December — 348(mm)

    • Weather forecast in the closest to Harlech admin centers

    Weather forecast in the closest towns to Harlech

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    Frequently asked questions

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