Dublin Weather in May
Ireland · Oceanic climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Dublin sees average temperatures ranging from a low of 9.0°C (48.2°F) to a high of 15.2°C (59.4°F), with a mean of 12.1°C (53.8°F). Compared to the annual average of 11.0°C (51.8°F), this month is 1.1°C warmer than the yearly norm. Precipitation averages 61.7mm, making it approximately 17.0mm drier than the monthly average of 79.0mm. The city receives an average of 11.2 hours of sunshine per day during May, with relative humidity averaging 76.9%. Wind speeds reach an average maximum of 21.7 km/h. For travelers, this month offers a temperature experience in Dublin, with drier-than-average conditions compared to the rest of the year.
Dublin's weather is a choose-your-own-adventure where every chapter includes rain. I packed a 'waterproof' jacket once — it wasn't. Bring serious rain gear: Gore-Tex or equivalent, year-round. The good news: rain rarely lasts long. My favorite window is May-June: 15°C, 7 hours of sun, and the pubs still have that winter coziness. August can be oddly humid. Skip January — 5°C, 70mm of rain, 8 hours of daylight if you're lucky. October has a melancholic charm but bring layers. Always pack for four seasons in one day, genuinely.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 8.9°C (48.0°F) | 12.1°C (53.8°F) | 14.7°C (58.5°F) |
| Rainfall | 59.7mm | 61.7mm | 66.5mm |
| Sunshine | 9.7 hrs | 11.2 hrs | 11.4 hrs |
| Humidity | 78.0% | 76.9% | 75.9% |
| Wind | 23.1 km/h | 21.7 km/h | 21.8 km/h |
| Rainy Days | 19.0 | 19.2 | 19.6 |
| Snowfall | 0.2 cm | 0.0 cm | 0.0 cm |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Dublin in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Dublin in May?
The average temperature in Dublin during May ranges from 9.0°C (48.2°F) to 15.2°C (59.4°F), with a mean of 12.1°C (53.8°F).
How much does it rain in Dublin in May?
Dublin receives an average of 61.7mm of precipitation in May, spread across approximately 19.2 rainy days.
What should I pack for Dublin in May?
Based on May weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is May a good time to visit Dublin?
May is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Dublin
Cities with Similar May Climate (Oceanic)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 53.35°, -6.26°. Timezone: Europe/Dublin. Last updated: 2026-07-30.