Climate averages 1991–2020
Limerick weather
in August.
A mild, moderately wet month: the 2nd warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Limerick: daytime highs average 18.4°C and nights cool to about 12.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 89 mm of rain on roughly 14 days, which makes August a moderately wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 44 min on an average August day.
The nearest other city in this atlas is Galway (73 km away). In August its highs average 17.8°C, 0.6°C cooler than Limerick, with 91 mm of rain.
Among the 5 cities listed in Ireland, Limerick ranks 3rd of 5 for the warmest August highs and 4th of 5 for the driest August (rainfall, lowest first). The mean August high of those 5 cities is 18.3°C; Limerick is 0.1°C warmer than that mean.
From August to September, average highs fall by 1.8°C to 16.5°C, and monthly rainfall falls from 89 mm to 76 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Limerick climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.1°C3.5°C | 3.5°C | 94 | 15.4 | 8.28 h |
| February | 8.6°C3.3°C | 3.3°C | 80 | 13.1 | 9.810 h |
| March | 10.2°C4.0°C | 4.0°C | 76 | 13.5 | 11.812 h |
| April | 12.5°C5.6°C | 5.6°C | 76 | 13.6 | 13.914 h |
| May | 15.2°C8.3°C | 8.3°C | 77 | 14.2 | 15.716 h |
| June | 17.5°C10.9°C | 10.9°C | 77 | 12.6 | 16.817 h |
| July | 18.7°C12.6°C | 12.6°C | 83 | 14.2 | 16.316 h |
| August, selected | 18.4°C12.4°C | 12.4°C | 89 | 14.0 | 14.715 h |
| September | 16.5°C10.8°C | 10.8°C | 76 | 12.7 | 12.713 h |
| October | 13.4°C8.2°C | 8.2°C | 89 | 14.1 | 10.711 h |
| November | 10.2°C5.5°C | 5.5°C | 96 | 15.0 | 8.89 h |
| December | 8.4°C3.9°C | 3.9°C | 99 | 15.0 | 7.78 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Galway in AugustIreland · 73 kmHigh 17.8°C · Low 12.2°C · 91 mm rain
- Cork in AugustIreland · 86 kmHigh 18.5°C · Low 13.1°C · 69 mm rain
- Tallaght in AugustIreland · 166 kmHigh 18.2°C · Low 12.3°C · 78 mm rain
- Dublin in AugustIreland · 175 kmHigh 18.6°C · Low 12.8°C · 78 mm rain
- Lisburn in AugustUnited Kingdom · 268 kmHigh 17.4°C · Low 12.1°C · 81 mm rain
- Derry in AugustUnited Kingdom · 273 kmHigh 17.1°C · Low 11.9°C · 94 mm rain
- Belfast in AugustUnited Kingdom · 279 kmHigh 17.3°C · Low 12.6°C · 81 mm rain
- Douglas in AugustIsle of Man · 320 kmHigh 16.0°C · Low 14.0°C · 78 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Limerick) is explained once on the Limerick year overview and on the Sources, method and limits page.