Weather Comparison
Side-by-side weather comparison for May
| Metric | Galway | Dublin | Better |
|---|---|---|---|
| Average HighHigher is warmer | 15°C (59°F) | 15°C (59°F) | Tie |
| Average LowHigher is milder | 8°C (46°F) | 8°C (46°F) | Tie |
| Rain DaysFewer is drier | 14 days | 14 days | Tie |
| PrecipitationLess is drier | 81 mm | 67 mm▲ | Dublin |
| Sunshine HoursMore is sunnier | 10h/day | 11h/day▲ | Dublin |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 10 | 10 | Tie |
| Wind SpeedCalmer is better | 21 km/h | 21 km/h | Tie |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Dublin edges ahead as the better destination in May. Dublin offers 11 hours of daily sunshine with only 14 rain days, while Galway sees 10 sunshine hours and 14 rain days.
Galway sits in the comfortable travel range at 15°C. Dublin is also comfortable at 15°C.
For travelers who prioritize dry weather, both cities are equally dry in May. Dublin receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Galway reaches an average high of 15°C (59°F) and drops to 8°C (46°F) at night during May. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Dublin averages 15°C (59°F) for the high and 8°C (46°F) for the low, with a daily range of 7°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in May.
Galway receives approximately 81 mm of rainfall across 14 rain days during May. You can expect rain roughly every other day.
Dublin sees 67 mm over 14 rain days. Both cities are equally rainy this month.
Both cities share similar humidity levels at 65%.
Highs of 15°C, lows of 8°C, 14 rain days
Highs of 15°C, lows of 8°C, 14 rain days
Pack for both: warm layers, a mid-weight jacket, long trousers, waterproof jacket, compact umbrella, waterproof shoes. These items are useful in either destination during May.
The table below shows average high temperatures and rain days for every month. May is highlighted for quick reference.
| Month | Galway | Dublin | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 8°C | 16d | 8°C | 13d |
| Feb | 9°C | 13d | 8°C | 12d |
| Mar | 10°C | 14d | 10°C | 12d |
| Apr | 12°C | 14d | 12°C | 14d |
| May | 15°C | 14d | 15°C | 14d |
| Jun | 17°C | 14d | 17°C | 13d |
| Jul | 18°C | 15d | 19°C | 15d |
| Aug | 18°C | 15d | 19°C | 14d |
| Sep | 16°C | 13d | 17°C | 12d |
| Oct | 13°C | 15d | 13°C | 12d |
| Nov | 10°C | 15d | 10°C | 13d |
| Dec | 8°C | 16d | 8°C | 13d |
Galway Weather in May
Full forecast, packing tips, and activities
Dublin Weather in May
Full forecast, packing tips, and activities