May Weather in Harthill, United Kingdom

Last updated: August 27, 2025

In Harthill, United Kingdom, the average temperature in May hovers around 12°C (54°F), with a minimum of 0°C (32°F) and a peak of 26°C (79°F). Expect about 61 mm (2.4 in) of precipitation spread over 11 days, and enjoy the relatively high average humidity at 79%. Prepare for a blend of cool and warm days in this season!

May Temperature in Harthill

In May in Harthill, the average temperature is 12°C (54°F). Maximums can reach 26°C (79°F), and minimums can be as low as 0°C (32°F). This makes it an ideal time for travelers to experience a pleasant mix of mild to warm weather while exploring the area.

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

The chart illustrates May temperature patterns in Harthill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harthill, May typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (79°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Harthill

In Harthill in May, the total precipitation amount is 61 mm (2.4 in) over the course of 11 days.

May Precipitation Trends in Harthill

The chart displays monthly precipitation patterns in Harthill, 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 Harthill, May typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 11 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 Harthill

In Harthill in May, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

May Average Humidity in Harthill

This chart illustrates the average monthly humidity levels in Harthill, 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 Harthill is approximately 79%, 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 Harthill

In Harthill 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 Harthill.

Maximum UV Index Levels in Harthill for May

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

Data source: Harthill 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 Harthill Compares to Other Months

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

This table compares monthly weather conditions in Harthill, 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)	57 mm (2.3 inches)	89%	low
February Weather	6°C (43°F)	66 mm (2.6 inches)	88%	low
March Weather	7°C (45°F)	72 mm (2.8 inches)	86%	moderate
April Weather	9°C (48°F)	49 mm (1.9 inches)	84%	moderate
May Weather	12°C (54°F)	61 mm (2.4 inches)	79%	high
June Weather	15°C (60°F)	83 mm (3.3 inches)	81%	very high
July Weather	17°C (63°F)	70 mm (2.8 inches)	78%	very high
August Weather	16°C (62°F)	80 mm (3.1 inches)	79%	high
September Weather	14°C (58°F)	73 mm (2.9 inches)	85%	moderate
October Weather	11°C (52°F)	84 mm (3.3 inches)	90%	moderate
November Weather	8°C (46°F)	67 mm (2.7 inches)	91%	low
December Weather	6°C (43°F)	87 mm (3.4 inches)	89%	low