Cork weather in May
May in Cork: cool, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Cork · #338 of 897 destinations to visit in May · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cork in May
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Cork climate normals — May
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Rainfall | 60 mm / 2.4 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 9°C / 49°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 15.7 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cork in May — FAQ
- Is May a good time to visit Cork?
- May in Cork: cool, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Cork on SeasonMap's comfort score (85/100).
- What is the weather like in Cork in May?
- In May, Cork averages a daily high of 15°C and a low of 9.1°C, with about 60.2 mm of rain over roughly 11 rainy days.
- What is the air quality in Cork in May?
- Cork has a mean US Air Quality Index of about 38 in May.