Best year time to visit Dún Laoghaire

General weather information about Dún Laoghaire

Average annual temperature is 11.0 °C

Absolute maximum temperature: 24.0 °C

Absolute minimum temperature: -1.6 °C

Number of sunny days: 84 days

Number of rainy days: 281 days

Look at detailed online map of Dún Laoghaire

* Weather data for Dún Laoghaire Ireland is based on climate observations for 2026 year

Dún Laoghaire air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.313.115.116.518.724.020.821.523.023.514.113.5
Average daytime temperature (°C)8.49.89.711.515.018.617.918.317.914.610.19.6
Average temperature (°C)6.37.77.18.812.316.015.115.515.212.18.27.8
Average night temperature (°C)4.65.65.06.29.313.012.512.912.29.56.16.0
Absolute minimum temperature (°C)-1.61.0-1.52.56.18.59.610.47.03.71.3-1.3

Dún Laoghaire 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)8.29.811.914.015.916.916.414.712.710.68.77.6
Daylight minimum duration (h)7.08.010.013.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)3.94.34.88.811.112.19.98.77.45.44.82.4
Precipitation (mm)7423172132437114714816615774119
Sunny days12130611130166115
Rainy days191531242017313024251926
Snow days000000000000

Dún Laoghaire - weather forecast by months

Dún Laoghaire weather in januaryDún Laoghaire weather in februaryDún Laoghaire weather in marchDún Laoghaire weather in aprilDún Laoghaire weather in mayDún Laoghaire weather in juneDún Laoghaire weather in julyDún Laoghaire weather in augustDún Laoghaire weather in septemberDún Laoghaire weather in octoberDún Laoghaire weather in novemberDún Laoghaire weather in december

Best time to visit Dún Laoghaire:

The best time to visit Dún Laoghaire during the most sunny months:

  • April — 8.8(h)
  • May — 11.1(h)
  • June — 12.1(h)
  • July — 9.9(h)

Months with the longest average daylight duration in Dún Laoghaire:

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

The largest precipitation sum in Dún Laoghaire is at

  • March — 172(mm)
  • July — 147(mm)
  • August — 148(mm)
  • September — 166(mm)
  • October — 157(mm)

    • Weather forecast in the closest to Dún Laoghaire admin centers

    Weather forecast in the closest towns to Dún Laoghaire

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    Frequently asked questions

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