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Finglas Weather by Month
Average temperatures, rainfall and humidity for Finglas, Ireland, month by month, built from OpenWeather’s historical records. Use it to see what a typical Finglas month looks like before you travel — then check the live Finglas forecast for the days ahead.
Warmest month
July
20°C average high
Coolest month
January
4°C average low
Wettest month
October
78 mm of rain
Driest month
July
41 mm of rain
Average temperature and rainfall in Finglas by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 8°C | 4°C | -3°C / 15°C | 64 mm | 86% | 20 km/h |
| February | 9°C | 4°C | -5°C / 15°C | 71 mm | 83% | 21 km/h |
| March | 10°C | 4°C | -5°C / 17°C | 64 mm | 81% | 20 km/h |
| April | 12°C | 5°C | -5°C / 23°C | 50 mm | 79% | 18 km/h |
| May | 15°C | 8°C | 0°C / 24°C | 58 mm | 77% | 16 km/h |
| June | 18°C | 11°C | 3°C / 28°C | 55 mm | 78% | 15 km/h |
| July | 20°C | 13°C | 4°C / 31°C | 41 mm | 78% | 14 km/h |
| August | 19°C | 12°C | 4°C / 29°C | 74 mm | 80% | 16 km/h |
| September | 17°C | 11°C | 2°C / 27°C | 56 mm | 83% | 16 km/h |
| October | 14°C | 9°C | -3°C / 23°C | 78 mm | 85% | 19 km/h |
| November | 11°C | 6°C | -3°C / 17°C | 63 mm | 86% | 19 km/h |
| December | 9°C | 5°C | -6°C / 16°C | 75 mm | 85% | 21 km/h |
Best time to visit Finglas
The most comfortable time to visit Finglas is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around October, totalling about 748 mm a year.
Travellers who prefer heat should aim for July, when highs average 20°C. October is the month to avoid if rain would spoil your plans — it averages 78 mm, roughly 2× the rainfall of the driest month (July).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Finglas forecast for what is happening now.