Climate in Portmarnock (Dublin County), Ireland

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Portmarnock, Ireland

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Portmarnock, Ireland

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* Data from: Dublin, Ireland (7 KM, 4 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Portmarnock, Ireland

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* Data from: Dublin, Ireland (7 KM, 4 Miles).

Average water temperature

The mean water temperature over the year.

Average monthly water temperature in Portmarnock, Ireland

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* Data from: Dublin, Ireland (7 KM, 4 Miles).

Monthly precipitation

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

Average monthly rainfall, snow, precipitation in Portmarnock, Ireland

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Portmarnock, Ireland

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Portmarnock, Ireland

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* Data from: Dublin, Ireland (7 KM, 4 Miles).

Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average monthly wind speed in Portmarnock, Ireland

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* Data from: Dublin, Ireland (7 KM, 4 Miles).

Weather Forecasts for Portmarnock

Thu   Mar 28
8°C | 2°C
SE 18 km/h
0.6 mm
broken clouds and slight rain

broken clouds and slight rain

Fri   Mar 29
11°C | 2°C
SE 18 km/h
1.7 mm
partly cloudy and  chance of rain

partly cloudy and chance of rain

Sat   Mar 30
11°C | 2°C
SE 29 km/h
0.8 mm
partly cloudy and rain

partly cloudy and rain

The best time of year to visit Portmarnock in Ireland

Other facts from our historical weather data:

  • Which is the warmest month in Portmarnock?
    July has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Portmarnock?
    The coldest month is February with an average maximum temperature of 10°C.
  • Which is the wettest month in Portmarnock?
    November tops the wettest month list with 98 mm of rainfall.
  • Which is the driest month in Portmarnock?
    March is the driest month with 64 mm of precipitation.
  • Which is the sunniest month in Portmarnock?
    May is the sunniest month with an average of 188 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.