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Llanberis Climate by Month

Temperatures see a moderate degree of fluctuation, transitioning from pleasant conditions to cold. It also has a relatively rainy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The climate in Llanberis experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a pleasant 19°C in July to a chilly 8°C in February. Nighttime temperatures can drop, with averages reaching 3°C in February.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Llanberis is known for its substantial rainfall, with annual precipitation reaching 1344 mm. The wettest period in Llanberis occurs in December, which receives around 142 mm of precipitation. During the driest month, May, Llanberis experiences moderate rainfall, totaling approximately 90 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Llanberis, summer days are longer and more sunny, with daily sunshine hours peaking at 5.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 0.9 hours per average day.

Monthly hours of sunshine

Data from: Bala, the United Kingdom (42 KM, 26 Miles).

Daily hours of sunshine

Data from: Bala, the United Kingdom (42 KM, 26 Miles).

The best time of year to visit Llanberis in the United Kingdom

Other facts from our historical weather data:
  • Which is the warmest month in Llanberis?
    July has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Llanberis?
    The coldest month is February with an average maximum temperature of 8°C.
  • Which is the wettest month in Llanberis?
    December tops the wettest month list with 142 mm of rainfall.
  • Which is the driest month in Llanberis?
    May is the driest month with 90 mm of precipitation.
  • Which is the sunniest month in Llanberis?
    May is the sunniest month with an average of 169 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Llanberis

    Fri   Dec 13
    7°C | 4°C
    SW 4 km/h
    0.7 mm
    broken clouds and  chance of slight rain

    broken clouds and chance of slight rain

    Sat   Dec 14
    7°C | 3°C
    NW 14 km/h
    5.6 mm
    broken clouds and  chance of rain

    broken clouds and chance of rain

    Sun   Dec 15
    11°C | 7°C
    SW 25 km/h
    3.3 mm
    overcast and rain

    overcast and rain