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May Weather in Portraine, Ireland

Last updated: August 23, 2025

In May, the average temperature in Portraine, Ireland hovers around 11°C (52°F). Expect a minimum of 3°C (38°F) and a maximum of 18°C (64°F). With 58 mm (2.3 in) of precipitation spread over 11 days, the weather can be quite damp, accompanied by an average humidity of 83%. Be prepared for a mix of cool and rainy days!

May Temperature in Portraine

In May in Portraine, the average temperature is 11°C (52°F), with maximums reaching 18°C (64°F) and minimums dropping as low as 3°C (38°F). This mild climate makes it an ideal time for exploring the sights and enjoying outdoor activities.

May Weather in Portraine: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Portraine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portraine, May typically has an average temperature of 11°C (52°F), with highs reaching up to 18°C (64°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec454546485257606058544946
Data source: Temperature data for Portraine generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Portraine

In Portraine in May, the precipitation amount is 58 mm (2.3 in) over the course of 11 days.

May Precipitation Trends in Portraine

The chart displays monthly precipitation patterns in Portraine, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Portraine, May typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6885884358767910086103123106
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Portraine

In Portraine in May humidity is 83%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, often leading travelers to seek shelter indoors or to dress in layered clothing to stay warm while exploring the area.

May Average Humidity in Portraine

This chart illustrates the average monthly humidity levels in Portraine, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Portraine is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Portraine

In Portraine in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Portraine.

Maximum UV Index Levels in Portraine for May

The chart shows the monthly maximum UV Index (UVI) for Portraine in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Portraine typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Portraine May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Portraine Compares to Other Months

Weather in Portraine varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Portraine, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Portraine, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)68 mm (2.7 inches)85%low
February Weather7°C (45°F)85 mm (3.3 inches)86%low
March Weather8°C (46°F)88 mm (3.5 inches)86%moderate
April Weather9°C (48°F)43 mm (1.7 inches)85%moderate
May Weather11°C (52°F)58 mm (2.3 inches)83%high
June Weather14°C (57°F)76 mm (3.0 inches)85%very high
July Weather16°C (61°F)79 mm (3.1 inches)86%very high
August Weather16°C (60°F)100 mm (3.9 inches)85%high
September Weather14°C (58°F)86 mm (3.4 inches)86%moderate
October Weather12°C (54°F)103 mm (4.0 inches)87%moderate
November Weather10°C (49°F)123 mm (4.8 inches)86%low
December Weather8°C (46°F)106 mm (4.2 inches)84%low

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