May Weather in Castlefin, Ireland

Last updated: August 23, 2025

In May, the average temperature in Castlefin, Ireland hovers around 11°C (52°F), offering a mild climate. Be prepared for varying conditions, as temperatures can dip to a frigid -2°C (29°F) or soar up to a warm 24°C (76°F). This month sees about 80 mm (3.2 in) of precipitation over 14 days, contributing to an average humidity level of 83%, resulting in a characteristically damp atmosphere.

May Temperature in Castlefin

In May in Castlefin, the average temperature is 11°C (52°F). The maximum can reach 24°C (76°F), while the minimum can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates May temperature patterns in Castlefin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castlefin, May typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (76°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Castlefin generated using information from the Copernicus Climate Change Service.

May Precipitation in Castlefin

In Castlefin in May, the precipitation amount is 80 mm (3.2 in) over the course of 14 days.

May Precipitation Trends in Castlefin

The chart displays monthly precipitation patterns in Castlefin, 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 Castlefin, May typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Castlefin

In Castlefin 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 Castlefin

This chart illustrates the average monthly humidity levels in Castlefin, 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 Castlefin is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Castlefin

In Castlefin 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 Castlefin.

Maximum UV Index Levels in Castlefin for May

The chart shows the monthly maximum UV Index (UVI) for Castlefin 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 Castlefin typically reaches 7, which falls under the high exposure category.

Data source: Castlefin 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 Castlefin Compares to Other Months

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

This table compares monthly weather conditions in Castlefin, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	72 mm (2.8 inches)	84%	low
February Weather	5°C (42°F)	115 mm (4.5 inches)	84%	low
March Weather	6°C (43°F)	100 mm (3.9 inches)	83%	moderate
April Weather	8°C (47°F)	60 mm (2.4 inches)	84%	moderate
May Weather	11°C (52°F)	80 mm (3.2 inches)	83%	high
June Weather	13°C (56°F)	101 mm (4.0 inches)	83%	very high
July Weather	15°C (59°F)	95 mm (3.7 inches)	86%	very high
August Weather	14°C (58°F)	138 mm (5.4 inches)	86%	high
September Weather	12°C (55°F)	86 mm (3.4 inches)	87%	moderate
October Weather	10°C (50°F)	104 mm (4.1 inches)	87%	moderate
November Weather	7°C (45°F)	94 mm (3.7 inches)	88%	low
December Weather	6°C (43°F)	102 mm (4.0 inches)	84%	low