What to pack for Dublin in May
- long sleeves and a warm layer
- a medium jacket
- a compact umbrella or rain shell — rain is frequent
Humidity averages 76%; max daily wind around 19 km/h.
How May compares
Best months in Dublin: June–September. See the full best time to visit Dublin guide.
Dublin in May: the details
In May, Dublin sees average daytime highs of 15°C (59°F) and overnight lows of 8°C (46°F). Rainfall totals roughly 68 mm across 14.3 rainy days, and the sun shines about 10.6 hours per day with 15.6 hours of daylight mid-month. Relative humidity averages 76%.
In context: May is the 5th-warmest month and the 11th-wettest in Dublin. The sunniest month is June (10.9 h/day).
| Metric | May average |
|---|---|
| Daytime high | 15°C / 59°F |
| Overnight low | 8°C / 46°F |
| Rainfall | 68 mm over 14.3 rainy days |
| Sunshine | 10.6 h/day (15.6 h daylight) |
| Humidity | 76% |
| Travel score | 6.8 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Dublin, Ireland (53.33, -6.25) — see our methodology. Actual conditions vary year to year.
Not set on Dublin? Browse the best places to visit in May ranked by travel score.
Frequently asked questions
How hot is Dublin in May?
Daytime highs in Dublin in May average 15°C (59°F); nights drop to about 8°C.
Does it rain in Dublin in May?
Expect around 14.3 rainy days and 68 mm of rainfall in May.
Is May a good time to visit Dublin?
May is a fair shoulder-season month in Dublin — decent conditions with some trade-offs. Overall travel score: 6.8/10. The best months are June–September.
Also good in May, near Dublin
Where should you go next month?
Get one email a month with the destinations at their seasonal best. Double opt-in, unsubscribe anytime.