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Temperature in Ireland in May

In Ireland in May the average maximum daytime temperatures are moderate and range from 13°C in Greencastle to 16°C in Tullamore. Nighttime temperatures generally drop to 8°C in Tullamore and 9°C in Greencastle.

What is the temperature of the different cities in Ireland in May?

Curious about the May temperatures in the prime spots of Ireland? Navigate the map below and tap on a destination dot for more detailed stats.

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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in May in Ireland?
  • Based on our systematic data collection, Tullamore has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 16°C, while at night is goes down to an approximate temperature of 8°C."

  • What is the coldest city in May in Ireland?
  • According to our data, Greencastle holds the title for the coldest city in Ireland in May. It experiences maximum temperatures of approximately 13°C and drops to lows of about 9°C during the night.

  • How much sun does Ireland get in May?
  • Most cities enjoy a balanced amount of sunshine, with around 188 hours of sunlight anticipated in Dublin. This ensures the days are neither too dim nor excessively sunny.

  • What is the water's temperature in May?
  • The water temperature averages approximately 11°C in Cork this month, so not the best month to swim.

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