Galway weather in August
August in Galway: nice, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Galway · #371 of 897 destinations to visit in August · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Galway in August
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Galway climate normals — August
| Daytime high | 19°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Rainfall | 117 mm / 4.6 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 14.7 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Galway in August — FAQ
- Is August a good time to visit Galway?
- August in Galway: nice, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Galway on SeasonMap's comfort score (84/100).
- What is the weather like in Galway in August?
- In August, Galway averages a daily high of 18.6°C and a low of 13°C, with about 116.5 mm of rain over roughly 16.4 rainy days.
- What is the air quality in Galway in August?
- Galway has a mean US Air Quality Index of about 36 in August.