Climate averages 1991–2020
Galway weather
in October.
A cool, wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Galway: daytime highs average 13.1°C and nights cool to about 8.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 95 mm of rain on roughly 14 days, which makes October a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 38 min on an average October day.
The nearest other city in this atlas is Limerick (73 km away). In October its highs average 13.4°C, about as warm as Galway, with 89 mm of rain.
Among the 5 cities listed in Ireland, Galway ranks 4th of 5 for the warmest October highs and 5th of 5 for the driest October (rainfall, lowest first). The mean October high of those 5 cities is 13.3°C; Galway is 0.1°C cooler than that mean.
From October to November, average highs fall by 2.9°C to 10.2°C, and monthly rainfall rises from 95 mm to 101 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Limerick in OctoberIreland · 73 kmHigh 13.4°C · Low 8.2°C · 89 mm rain
- Cork in OctoberIreland · 158 kmHigh 13.7°C · Low 9.4°C · 85 mm rain
- Tallaght in OctoberIreland · 178 kmHigh 12.8°C · Low 8.0°C · 78 mm rain
- Dublin in OctoberIreland · 186 kmHigh 13.3°C · Low 8.6°C · 78 mm rain
- Derry in OctoberUnited Kingdom · 223 kmHigh 12.3°C · Low 8.0°C · 88 mm rain
- Lisburn in OctoberUnited Kingdom · 242 kmHigh 12.5°C · Low 8.3°C · 86 mm rain
- Belfast in OctoberUnited Kingdom · 252 kmHigh 12.8°C · Low 9.0°C · 86 mm rain
- Douglas in OctoberIsle of Man · 316 kmHigh 13.1°C · Low 11.0°C · 117 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.