ClimateForecastDecemberJanuary >>

Castletownbere Climate by Month

Temperatures in Castletownbere experience a moderate degree of variance through the seasons. Days can be pleasant, while the cooler months tend to be cold. It also experiences much rainfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

The weather in Castletownbere changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a pleasant 18°C in August. In February, the coolest month of the year, temperatures drop to a chilly 10°C. At night, expect cooler temperatures, averaging 5°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Castletownbere has a notably wet climate with abundant precipitation, recording 1523 mm of rainfall per year. Castletownbere experiences moderate seasonal variation in rainfall, with monthly averages ranging from 171 mm in December, the wettest month, and 97 mm in May, the driest month.

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

Sunshine over the year

Castletownbere can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.3 hours of sunlight per day.

Monthly hours of sunshine

Data from: Valentia, Ireland (39 KM, 24 Miles).

Daily hours of sunshine

Data from: Valentia, Ireland (39 KM, 24 Miles).

The best time of year to visit Castletownbere in Ireland

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Castletownbere?
    Most rainfall (rainy season) is seen in January, October, November and December.
  • Which is the warmest month in Castletownbere?
    August has an average maximum temperature of 18°C and is the warmest month of the year.
  • Which is the coldest month in Castletownbere?
    The coldest month is February with an average maximum temperature of 10°C.
  • Which is the wettest month in Castletownbere?
    December tops the wettest month list with 171 mm of rainfall.
  • Which is the driest month in Castletownbere?
    May is the driest month with 97 mm of precipitation.
  • Which is the sunniest month in Castletownbere?
    May is the sunniest month with an average of 180 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 Castletownbere

    Thu   Dec 12
    8°C | 3°C
    NE 14 km/h
    overcast and no rain

    overcast and no rain

    Fri   Dec 13
    9°C | 4°C
    NW 7 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Sat   Dec 14
    10°C | 5°C
    W 18 km/h
    overcast and no rain

    overcast and no rain