May · Ireland
Best time to visit Galway in May Weather, crowds & prices
Weather in Galway in May
Average temperature 13°C, 79 mm of rain, about 25 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
8.0/10
Ranked #1 of 12 months
- Avg temp
- 13°C
- Rainfall
- 79 mm
- Humidity
- 79%
- Days with 6h+ sun
- 25
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
May in Galway scores 8.0/10 for sightseeing and cultural travel - the single best month of the year. Expect around 13°C, 79 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Galway's Latin quarter, buskers and Atlantic winds make it Ireland's festival city on the west coast.
May: the best month of the year in Galway
Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 79 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 15.9 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Galway at 8/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Galway in May?
- In May, Galway averages 13°C, 79 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 8.0/10.
- Is May a good time to visit Galway?
- May earns a 8.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Galway in May?
- Expect about 79 mm of rain in May. Average humidity is 79% and there are about 25 days with 6+ hours of sunshine.
Curated in Galway
Tickets & experiences
Things to do in Galway
Galway, Ireland. Live activities and tours from GetYourGuide, matched to this destination.