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Best time to visit · Ireland
For the most comfortable weather in Galway, aim for May – September. June tops our comfort score at 78/100, with highs around 66°F (19°C) and 3.5 in (89 mm) of rain. April and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
Highs run from 46°F to 68°F across the year, and the yearly total is about 44.6 in (1134 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 46°F8°C | 46°F8°C | 49°F10°C | 55°F13°C | 61°F16°C | 66°F19°C | 68°F20°C | 66°F19°C | 63°F17°C | 56°F14°C | 50°F10°C | 46°F8°C |
| Avg low | 37°F3°C | 37°F3°C | 38°F3°C | 41°F5°C | 46°F8°C | 50°F10°C | 53°F12°C | 53°F11°C | 50°F10°C | 46°F8°C | 41°F5°C | 38°F4°C |
| Rain | 4.3 in108 mm | 3.3 in84 mm | 3.2 in81 mm | 2.7 in68 mm | 3.2 in81 mm | 3.5 in89 mm | 3.8 in97 mm | 4.1 in105 mm | 3.4 in86 mm | 4.1 in104 mm | 4.6 in118 mm | 4.4 in113 mm |
| Humidity | 94% | 93% | 89% | 84% | 80% | 78% | 81% | 84% | 86% | 90% | 94% | 95% |
| Cloud | 75% | 75% | 73% | 72% | 74% | 78% | 81% | 79% | 74% | 71% | 73% | 75% |
| Comfort | 45 | 49 | 56 | 67 | 74 | 78 | 76 | 76 | 77 | 65 | 52 | 46 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 53 m (174 ft), close to Galway's own ~6 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs near 46°F (8°C) and lows down to 37°F (3°C). About 12.0 in (305 mm) of rain falls across these months, 27% of the year's total. It holds the toughest stretch on our comfort score (December – February), averaging 47/100.
Temperatures climb through the season, from 49°F highs in March to 61°F by May. It's the driest season, with only about 9.1 in (230 mm) of rain, 20% of the year's total. Lows bottom out around 38°F (3°C). Comfort peaks here: May ranks with the year's best, and the season averages 66/100.
Peak warmth: highs of 66–68°F (19–20°C). About 11.5 in (291 mm) of rain falls across these months, 26% of the year's total. Lows bottom out around 50°F (10°C). June – August are among the best-scoring months (season average 77/100).
Temperatures slide from 63°F highs in September to 50°F by November. It's the wettest season, with about 12.1 in (308 mm) of rain, 27% of the year's total. Lows bottom out around 41°F (5°C). Comfort peaks here: September ranks with the year's best, and the season averages 65/100.
By comfort score: 4 Great, 3 Good and 5 Fair. Great months: June – September. Tap a month for its own guide.
For the most comfortable weather in Galway, aim for May – September. June tops our comfort score at 78/100, with highs around 66°F (19°C) and 3.5 in (89 mm) of rain. April and October are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
November is the wettest month, averaging about 4.6 in (118 mm) of rain. April is the driest, with about 2.7 in (68 mm). The yearly total is around 44.6 in (1134 mm).
February is the coldest, with average lows of 37°F (3°C) and highs of 46°F (8°C). The warmest is July, with average highs of 68°F (20°C).
Not very: summer (June – August) humidity averages 81%, and highs peak around 68°F (20°C), so it rarely feels sticky.
Not on average: even in February, the coldest month, lows average 37°F (3°C). Individual cold snaps can still dip lower.
Poll the group on May – September dates, then plan the days, packing and costs together.
