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May Weather in Treffrin, France

Last updated: August 23, 2025

In May, the average temperature in Treffrin, France hovers around 13°C (55°F). Expect a cool minimum of 0°C (32°F) and a warm maximum reaching 28°C (82°F). The month brings about 80 mm (3.1 in) of precipitation over 13 days, with an average humidity level of 81%. Be prepared for a mix of weather during your visit!

May Temperature in Treffrin

In May in Treffrin, the average temperature is 13°C (55°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop to as low as 0°C (32°F). This makes Treffrin an ideal destination for those who enjoy mild to warm weather with the possibility of cooler evenings.

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

The chart illustrates May temperature patterns in Treffrin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Treffrin, May typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec424446505561646259544745
Data source: Temperature data for Treffrin 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 Treffrin

In Treffrin in May, the precipitation amount is 80 mm (3.1 in) spread over the course of 13 days.

May Precipitation Trends in Treffrin

The chart displays monthly precipitation patterns in Treffrin, 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 Treffrin, May typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec61837552809751544910180116
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Treffrin

In Treffrin in May, humidity is 81%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making strolls outdoors feel heavy and slightly oppressive, which may be less than ideal for travelers looking to explore comfortably.

May Average Humidity in Treffrin

This chart illustrates the average monthly humidity levels in Treffrin, 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 Treffrin is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Treffrin

In Treffrin in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Treffrin.

Maximum UV Index Levels in Treffrin for May

The chart shows the monthly maximum UV Index (UVI) for Treffrin 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 Treffrin typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986522
Data source: Treffrin 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 Treffrin Compares to Other Months

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

This table compares monthly weather conditions in Treffrin, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)61 mm (2.4 inches)89%low
February Weather7°C (44°F)83 mm (3.3 inches)88%moderate
March Weather8°C (47°F)75 mm (3.0 inches)85%moderate
April Weather10°C (50°F)51 mm (2.0 inches)84%high
May Weather13°C (55°F)80 mm (3.1 inches)81%very high
June Weather16°C (61°F)97 mm (3.8 inches)77%very high
July Weather18°C (64°F)51 mm (2.0 inches)63%very high
August Weather17°C (62°F)54 mm (2.1 inches)71%very high
September Weather15°C (59°F)49 mm (1.9 inches)76%high
October Weather12°C (54°F)101 mm (4.0 inches)89%moderate
November Weather8°C (47°F)80 mm (3.1 inches)90%low
December Weather7°C (45°F)116 mm (4.6 inches)90%low

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