Best year time to visit Portnalong

General weather information about Portnalong

Average annual temperature is 10.7 °C

Absolute maximum temperature: 25.2 °C

Absolute minimum temperature: -1.9 °C

Number of sunny days: 60 days

Number of rainy days: 303 days

Number of snow days: 2 days

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

Portnalong air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.013.414.917.419.024.622.422.025.219.813.112.9
Average daytime temperature (°C)7.99.69.111.714.118.916.517.117.213.59.68.9
Average temperature (°C)6.37.76.68.911.515.814.414.914.611.68.07.4
Average night temperature (°C)4.55.54.36.08.412.412.413.012.19.96.15.8
Absolute minimum temperature (°C)-1.50.1-1.91.73.17.59.810.08.55.72.10.1

Portnalong monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.016.017.017.015.013.011.09.07.0
Daylight mean duration (h)7.89.711.914.216.217.316.815.012.710.58.47.2
Daylight minimum duration (h)7.08.010.013.015.017.016.013.011.09.07.07.0
Sunshine mean duration (h)2.43.35.58.79.612.09.69.27.14.83.92.2
Precipitation (mm)151691411167094186136121142127210
Sunny days2738812015464
Rainy days282127222318313025272427
Snow days101000000000

Portnalong - weather forecast by months

Portnalong weather in januaryPortnalong weather in februaryPortnalong weather in marchPortnalong weather in aprilPortnalong weather in mayPortnalong weather in junePortnalong weather in julyPortnalong weather in augustPortnalong weather in septemberPortnalong weather in octoberPortnalong weather in novemberPortnalong weather in december

Best time to visit Portnalong:

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

  • April — 8.7(h)
  • May — 9.6(h)
  • June — 12.0(h)
  • July — 9.6(h)
  • August — 9.2(h)

Months with the longest average daylight duration in Portnalong:

  • May — 16.2(h)
  • June — 17.3(h)
  • July — 16.8(h)

The largest precipitation sum in Portnalong is at

  • July — 186(mm)
  • December — 210(mm)

    • Weather forecast in the closest to Portnalong admin centers

    Weather forecast in the closest towns to Portnalong

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    Frequently asked questions

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