Best year time to visit Gwynedd

General weather information about Gwynedd

Average annual temperature is 9.7 °C

Absolute maximum temperature: 26.2 °C

Absolute minimum temperature: -6.8 °C

Number of sunny days: 72 days

Number of rainy days: 292 days

Number of snow days: 1 day

Look at detailed online map of Gwynedd

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

Gwynedd air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.612.613.015.720.626.222.923.925.919.512.411.2
Average daytime temperature (°C)6.47.97.811.316.420.716.417.218.413.58.37.7
Average temperature (°C)4.35.35.37.612.016.213.814.215.210.76.35.9
Average night temperature (°C)1.92.82.73.97.311.511.211.311.98.03.83.8
Absolute minimum temperature (°C)-6.4-1.9-6.8-1.74.46.37.68.56.01.1-3.7-5.5

Gwynedd 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)3.14.13.98.011.411.59.28.86.95.23.51.7
Precipitation (mm)3676839113847116330177252253232372
Sunny days79391511025641
Rainy days241927211619312925252630
Snow days001000000000

Gwynedd - weather forecast by months

Gwynedd weather in januaryGwynedd weather in februaryGwynedd weather in marchGwynedd weather in aprilGwynedd weather in mayGwynedd weather in juneGwynedd weather in julyGwynedd weather in augustGwynedd weather in septemberGwynedd weather in octoberGwynedd weather in novemberGwynedd weather in december

Best time to visit Gwynedd:

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

  • May — 11.4(h)
  • June — 11.5(h)
  • July — 9.2(h)
  • August — 8.8(h)

Months with the longest average daylight duration in Gwynedd:

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

The largest precipitation sum in Gwynedd is at

  • January — 367(mm)
  • March — 391(mm)
  • July — 330(mm)
  • December — 372(mm)

    • Weather forecast in the closest to Gwynedd admin centers

    Weather forecast in the closest towns to Gwynedd

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    Frequently asked questions

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