Dublin City · Ireland
Dublin in May
In May, Dublin averages a daytime high of 15 °C and a night-time low of 7 °C, with about 76 mm of rain over the month. It falls outside Dublin's most comfortable months, July.
- Average high
- 15 °C
- Average low
- 7 °C
- Rain in the month
- 76 mm
- Daylight on 15 May
- 16 h
- Comfortable month
- No
- Places to stay
- 202
When to go
How May compares with the rest of the year in Dublin
May is the 5th warmest month in Dublin by average daytime high; across the year the highs run from 8 °C to 19 °C and the lows from 3 °C to 11 °C. By day, May is 3 °C warmer than April, and June is 3 °C warmer than May.
May brings 76 mm of rain, less than the monthly average of 90 mm (1079 mm a year); it is tied for the 9th wettest month.
On 15 May the sun is up for about 16 h, against 7 h 30 min at the shortest and 17 h at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 8 °C | 3 °C | 99 mm | |
| February | 8 °C | 3 °C | 85 mm | |
| March | 10 °C | 3 °C | 76 mm | |
| April | 12 °C | 4 °C | 70 mm | |
| May | 15 °C | 7 °C | 76 mm | |
| June | 17 °C | 10 °C | 73 mm | |
| July | 19 °C | 11 °C | 79 mm | Yes |
| August | 19 °C | 11 °C | 85 mm | |
| September | 17 °C | 10 °C | 91 mm | |
| October | 13 °C | 7 °C | 109 mm | |
| November | 10 °C | 5 °C | 117 mm | |
| December | 8 °C | 3 °C | 120 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is May a good time to visit Dublin?
Not by the measure used here: the average high of 15 °C is below 18 °C. The comfortable months in Dublin are July; the nearest is July.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in Ireland in May
Nationwide public holidays; shops and offices may close on these dates.
Where to stay
Where to stay in Dublin
This guide lists 202 places to stay in Dublin: 7 chain properties with their details and own websites, and 195 hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 57; 1–3 km, 74; 3–10 km, 36; 10 km or more, 35.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from the OpenHolidays API (ODbL); places to stay from each operator's own public pages and Wikidata. How this guide is made.