Best year time to visit Portnahaven

General weather information about Portnahaven

Average annual temperature is 10.8 °C

Absolute maximum temperature: 19.0 °C

Absolute minimum temperature: 1.2 °C

Number of sunny days: 86 days

Number of rainy days: 279 days

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

Portnahaven air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.611.410.813.412.316.617.318.119.016.313.612.7
Average daytime temperature (°C)9.19.38.19.510.914.214.415.315.713.310.910.0
Average temperature (°C)8.08.47.18.610.213.213.814.714.612.410.09.0
Average night temperature (°C)6.87.46.07.69.512.213.114.113.611.38.97.9
Absolute minimum temperature (°C)2.45.01.25.17.99.511.012.710.88.84.74.0

Portnahaven monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.017.017.016.013.011.09.07.0
Daylight mean duration (h)7.89.611.914.216.317.416.915.012.710.48.37.1
Daylight minimum duration (h)7.08.010.013.015.017.016.013.011.09.07.07.0
Sunshine mean duration (h)2.93.66.48.910.112.710.79.57.45.04.02.5
Precipitation (mm)188631541024870141105151167249246
Sunny days287101415438762
Rainy days292024201715272822242429
Snow days000000000000

Portnahaven - weather forecast by months

Portnahaven weather in januaryPortnahaven weather in februaryPortnahaven weather in marchPortnahaven weather in aprilPortnahaven weather in mayPortnahaven weather in junePortnahaven weather in julyPortnahaven weather in augustPortnahaven weather in septemberPortnahaven weather in octoberPortnahaven weather in novemberPortnahaven weather in december

Best time to visit Portnahaven:

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

  • April — 8.9(h)
  • May — 10.1(h)
  • June — 12.7(h)
  • July — 10.7(h)
  • August — 9.5(h)

Months with the longest average daylight duration in Portnahaven:

  • May — 16.3(h)
  • June — 17.4(h)
  • July — 16.9(h)

The largest precipitation sum in Portnahaven is at

  • January — 188(mm)
  • November — 249(mm)
  • December — 246(mm)

    • Weather forecast in the closest to Portnahaven admin centers

    Weather forecast in the closest towns to Portnahaven

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    Frequently asked questions

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