Weather in Dublin in May 2025
- May is usually the driest month of the year in Dublin
Average weather
Average temperature in Dublin in May
Going from a maximum of +68°F during the day to a minimum of +41°F during the night, the temperature in May averages around +63°F.
The average maximum temperature goes down 7% by the end of the month, compared with the beginning of the month, from +63°F to +61°F.
Is Dublin warm or cold in May?
Dublin is typically mild in May.
Maximum temperatures go up compared to the previous month from +54°F to +59°F. The minimum temperature also goes up from +43°F to +46°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Dublin:
Water temperature in Dublin in May
Water in Dublin in May is Cold. It varies from +49°F to +53°F, with an average of +51°F. This is almost similar to the air temperature, which averages +59°F.
In May, water temperatures are average relative to the rest of the year:
Can you swim in Dublin in May?
Climate in Dublin in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +54°F | +59°F | +64°F | ||||
| Min. temperature | ||||||
| +25°F | +28°F | +37°F | ||||
| Max. temperature | ||||||
| +72°F | +75°F | +81°F | ||||
| Rainfall | ||||||
| 113 mm | 145 mm | 77 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +49°F | +51°F | +54°F | ||||
| Humidity | ||||||
| 78% | 77% | 77% | ||||
| Air pressure | ||||||
| 1013 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 1 | ||||
| Cloudy days | ||||||
| 9 | 10 | 9 | ||||
| Rainy days | ||||||
| 19 | 19 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +54°F to +59°F during the day. Prepare for more rain. Average rainfall goes from 113 mm to 145 mm. It feels drier, as humidity decreases from 78% to 77%. The average wind speed doesn’t change much during May, staying around 4 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Dublin is gradually increasing during May, going from 4 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Dublin?
Climate Change Over the Years
The climate in Dublin in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+54°F) and the highest in 2023 (+58°F). The driest year was 1991 with only 627 mm of rainfall, and the wettest year was 2013 with 15853 mm.
FAQ
Is May a good time to visit Dublin?
Can you sunbathe in Dublin in May?
Can you swim in Dublin in May?
Is Dublin rainy in May?
Is it sunny in Dublin in May?
Other cities in Ireland
Monthly weather in Dublin
Source of the data
For this page, we’ve looked at the typical weather in Dublin, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.