Climate averages 1991–2020
Galway weather
in July.
A mild, moderately wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Galway: daytime highs average 18.0°C and nights cool to about 12.3°C. By daytime temperature it is the warmest month of the year.
Expect about 83 mm of rain on roughly 15 days, which makes July a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 26 min on an average July day.
The nearest other city in this atlas is Limerick (73 km away). In July its highs average 18.7°C, 0.7°C warmer than Galway, with 83 mm of rain.
Among the 5 cities listed in Ireland, Galway ranks 5th of 5 for the warmest July highs and joint 4th of 5 for the driest July (rainfall, lowest first). The mean July high of those 5 cities is 18.6°C; Galway is 0.6°C cooler than that mean.
From July to August, average highs fall by 0.2°C to 17.8°C, and monthly rainfall rises from 83 mm to 91 mm.
The annual picture
July 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
Galway climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.0°C3.8°C | 3.8°C | 99 | 15.4 | 8.18 h |
| February | 8.5°C3.5°C | 3.5°C | 85 | 13.0 | 9.810 h |
| March | 9.9°C4.1°C | 4.1°C | 78 | 13.3 | 11.812 h |
| April | 12.2°C5.5°C | 5.5°C | 76 | 13.7 | 13.914 h |
| May | 14.8°C8.2°C | 8.2°C | 79 | 13.5 | 15.816 h |
| June | 16.9°C10.6°C | 10.6°C | 79 | 12.9 | 16.917 h |
| July, selected | 18.0°C12.3°C | 12.3°C | 83 | 14.5 | 16.416 h |
| August | 17.8°C12.2°C | 12.2°C | 91 | 14.0 | 14.815 h |
| September | 16.2°C10.8°C | 10.8°C | 75 | 12.3 | 12.713 h |
| October | 13.1°C8.3°C | 8.3°C | 95 | 14.0 | 10.611 h |
| November | 10.2°C5.8°C | 5.8°C | 101 | 14.3 | 8.79 h |
| December | 8.3°C4.1°C | 4.1°C | 104 | 15.2 | 7.68 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
July in nearby cities
- Limerick in JulyIreland · 73 kmHigh 18.7°C · Low 12.6°C · 83 mm rain
- Cork in JulyIreland · 158 kmHigh 18.7°C · Low 13.2°C · 67 mm rain
- Tallaght in JulyIreland · 178 kmHigh 18.5°C · Low 12.4°C · 76 mm rain
- Dublin in JulyIreland · 186 kmHigh 18.9°C · Low 12.9°C · 76 mm rain
- Derry in JulyUnited Kingdom · 223 kmHigh 17.3°C · Low 11.9°C · 93 mm rain
- Lisburn in JulyUnited Kingdom · 242 kmHigh 17.7°C · Low 12.1°C · 81 mm rain
- Belfast in JulyUnited Kingdom · 252 kmHigh 17.4°C · Low 12.5°C · 81 mm rain
- Douglas in JulyIsle of Man · 316 kmHigh 15.5°C · Low 13.5°C · 67 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 Galway) is explained once on the Galway year overview and on the Sources, method and limits page.