May Weather in Biel, Spain

Last updated: August 27, 2025

In May, the average temperature in Biel, Spain hovers around 15°C (59°F). However, be prepared for a temperature range that can swing from a chilly -1°C (31°F) to a sweltering 33°C (91°F). During this month, expect about 77 mm (3.0 in) of precipitation over approximately 11 days, accompanied by an average humidity of 80%—perfect for those seeking a lush atmosphere!

May Temperature in Biel

In May in Biel, the average temperature is 15°C (59°F). Maximums can reach 33°C (91°F) and minimums can be as low as -1°C (31°F). This fluctuating climate makes Biel a destination suitable for travelers seeking both warm and cool weather experiences.

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

The chart illustrates May temperature patterns in Biel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Biel, May typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (91°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Biel

In Biel in May, the precipitation amount is 77 mm (3.0 in) over the course of 11 days.

May Precipitation Trends in Biel

The chart displays monthly precipitation patterns in Biel, 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 Biel, May typically receives around 77 mm (3.0 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 Biel

In Biel in May, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

May Average Humidity in Biel

This chart illustrates the average monthly humidity levels in Biel, 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 Biel is approximately 80%, 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 Biel

In Biel in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Biel.

Maximum UV Index Levels in Biel for May

The chart shows the monthly maximum UV Index (UVI) for Biel 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 Biel typically reaches 9, which falls under the very high exposure category.

Data source: Biel 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 Biel Compares to Other Months

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

This table compares monthly weather conditions in Biel, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	67 mm (2.6 inches)	86%	moderate
February Weather	7°C (44°F)	57 mm (2.2 inches)	85%	moderate
March Weather	8°C (47°F)	82 mm (3.2 inches)	82%	moderate
April Weather	11°C (52°F)	99 mm (3.9 inches)	81%	very high
May Weather	15°C (59°F)	77 mm (3.0 inches)	80%	very high
June Weather	19°C (67°F)	73 mm (2.9 inches)	81%	extreme
July Weather	22°C (73°F)	28 mm (1.1 inches)	80%	very high
August Weather	22°C (73°F)	41 mm (1.6 inches)	76%	very high
September Weather	18°C (65°F)	62 mm (2.5 inches)	75%	very high
October Weather	13°C (56°F)	78 mm (3.1 inches)	81%	high
November Weather	8°C (46°F)	89 mm (3.5 inches)	85%	moderate
December Weather	6°C (42°F)	97 mm (3.8 inches)	87%	low