Ireland weather in May
Ireland in May averages 11°C (52°F), 56 mm of rain and 5.6 hours of sun a day.
Of the twelve months in Ireland, May is the fifth warmest, the driest and the sunniest.
- Average temp
- 11°C (52°F)
7–16°C · 44–60°F
- Rainfall
- 56 mm
Showers likely
- Sunshine
- 5.6 h
hours per day
- Wind
- 18 km/h
What is Ireland like in May?
Daytime
Days are cool.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Ireland in May?
A light rain jacket
About 56 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 7°C (44°F).
May compared with April and June
May in Ireland is 2.6°C warmer than April and 13 mm drier than it, which averages 9°C (47°F).
May in Ireland is 2.6°C cooler than June and 14 mm drier than it, which averages 14°C (57°F).
Daylight in Ireland in May
On 15 May the sun is up for 15 hours 55 minutes in Ireland, rising about 05:32 and setting about 21:27 local time.
May ends 1 hour 33 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 5 minutes short of June, the longest-lit month here.
Travel guides for Ireland
What to read before you book.
Ireland weather by month
TemperatureRainfall
How May compares with the rest of the year
May is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 6°C / 42°F | 82 mm |
| February | 6°C / 42°F | 63 mm |
| March | 7°C / 45°F | 60 mm |
| April | 9°C / 47°F | 69 mm |
| May | 11°C / 52°F | 56 mm |
| June | 14°C / 57°F | 70 mm |
| July | 15°C / 60°F | 59 mm |
| August | 15°C / 60°F | 70 mm |
| September | 13°C / 56°F | 65 mm |
| October | 10°C / 50°F | 96 mm |
| November | 8°C / 46°F | 82 mm |
| December | 6°C / 42°F | 80 mm |
Similar weather in May
Other destinations whose May averages sit close to this one.
Check another month
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FAQs about Ireland in May
May climate averages for Ireland, 1991–2020.
Ireland averages 11°C (52°F) in May, ranging from about 7°C (44°F) at night to 16°C (60°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 56 mm falls across May, enough to need a light jacket but not enough to reshape a trip.
No. May averages 11°C (52°F) against 14°C (57°F) in June — 2.6°C cooler.
May is 2.6°C warmer than April, and 13 mm drier.
Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 5.6 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 15 hours 55 minutes of daylight in mid-May, against 17 hours in June and 7 hours 31 minutes in December.
On 15 May, sunrise is about 05:32 and sunset about 21:27 local time. Both shift across the month — the month ends 1 hour 33 minutes longer than it starts.
