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The weather in May in Dublin

It's cool to moderate in May in Dublin with an average temperature of 16°C. Temperatures this month range from a low of 13°C to a high of 19°C. At night, you can expect temperatures between 6°C and 10°C.

Looking for sun and warm weather? May isn’t a good month to be in Dublin. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Dublin, Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 25°C in 2020, Dublin reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 8°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 14°C.

Rainfall amount

In May, there is an average of 51 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in May for Dublin

Click on any day in May to get detailed info about the usual weather on that day in Dublin. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  Dublin New York
Average temperature 16°C 22°C
Max. temperature 19°C 28°C
Min. temperature 6°C -5°C
Total precipitation 51 mm 105 mm
Rainy days 9 days 14 days

Start of May

The month of May starts in Dublin with cool temps, averaging around 15°C during the day and nights around 7°C.

Mid May

By mid-May, daytime temps rise to around 16°C, with nights around 8°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of May

By the end of May, the average daytime temperature in Dublin is around 18°C, while nighttime temps are about 9°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Dublin for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in May in Dublin, Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in Dublin

Temperature in May in Dublin over the years

Precipitation charts

These charts show the average amount of precipitation in May in Dublin, Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in May in Dublin

Total precipitation in May in Dublin over the years

Daily UV index in May in Dublin

This chart shows the average daily UV index in May in Dublin, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in May in Dublin

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Average weather in Dublin by month

Click on a month below to see detailed weather info for Dublin. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.