Average temperature in Portmarnock
The mean minimum and maximum temperatures over the year in Portmarnock (Dublin County), Ireland.
- On average, the warmest month is July with 19°C.
- On average, the coolest month is January with 10°C.
- The average annual maximum temperature is 14°C.
- The average annual minimum temperature is 8°C.
Weather Forecasts for Portmarnock
partly cloudy and chance of rain
broken clouds and rain
overcast and rain