Best year time to visit Llanberis

General weather information about Llanberis

Average annual temperature is 9.1 °C

Absolute maximum temperature: 26.1 °C

Absolute minimum temperature: -8.2 °C

Number of sunny days: 66 days

Number of rainy days: 295 days

Number of snow days: 4 days

Look at detailed online map of Llanberis

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

Llanberis air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.111.411.014.618.425.820.622.226.118.611.610.9
Average daytime temperature (°C)5.97.16.810.314.619.815.516.117.612.67.77.2
Average temperature (°C)3.85.04.57.011.015.713.113.514.710.05.95.5
Average night temperature (°C)1.72.91.83.67.411.110.811.011.97.73.83.7
Absolute minimum temperature (°C)-7.8-0.6-8.2-1.84.66.07.57.96.22.0-3.3-4.5

Llanberis 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)8.29.911.914.015.916.916.414.712.710.68.77.6
Daylight minimum duration (h)7.08.010.012.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)3.63.94.38.511.411.89.59.07.05.73.62.0
Precipitation (mm)2955636010853118283214239241200299
Sunny days38181612026631
Rainy days262028221518312924252730
Snow days202000000000

Llanberis - weather forecast by months

Llanberis weather in januaryLlanberis weather in februaryLlanberis weather in marchLlanberis weather in aprilLlanberis weather in mayLlanberis weather in juneLlanberis weather in julyLlanberis weather in augustLlanberis weather in septemberLlanberis weather in octoberLlanberis weather in novemberLlanberis weather in december

Best time to visit Llanberis:

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

  • April — 8.5(h)
  • May — 11.4(h)
  • June — 11.8(h)
  • July — 9.5(h)
  • August — 9.0(h)

Months with the longest average daylight duration in Llanberis:

  • May — 15.9(h)
  • June — 16.9(h)
  • July — 16.4(h)

The largest precipitation sum in Llanberis is at

  • January — 295(mm)
  • March — 360(mm)
  • July — 283(mm)
  • December — 299(mm)

    • Weather forecast in the closest to Llanberis admin centers

    Weather forecast in the closest towns to Llanberis

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    Frequently asked questions

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