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May Weather in Saint-Cast-le-Guildo, France

Last updated: August 23, 2025

In May, the average temperature in Saint-Cast-le-Guildo, France hovers around 13°C (55°F), presenting a comfortable climate for exploration. Expect minimums of 8°C (46°F) and delightful highs of 20°C (69°F). Be prepared for some rain, as 63 mm (2.5 in) is typically recorded over 11 days, contributing to a humidity level of 80%. Perfect for cozy indoor activities or invigorating outdoor adventures!

May Temperature in Saint-Cast-le-Guildo

In May, in Saint-Cast-le-Guildo, the average temperature is 13°C (55°F). The maximum can reach 20°C (69°F), while the minimum can drop to as low as 8°C (46°F). This moderate climate makes Saint-Cast-le-Guildo a comfortable destination for travelers seeking pleasant weather and outdoor activities.

May Weather in Saint-Cast-le-Guildo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint-Cast-le-Guildo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Cast-le-Guildo, May typically has an average temperature of 13°C (55°F), with highs reaching up to 20°C (69°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec474748515560636463595350
Data source: Temperature data for Saint-Cast-le-Guildo 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 Saint-Cast-le-Guildo

In Saint-Cast-le-Guildo in May, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

May Precipitation Trends in Saint-Cast-le-Guildo

The chart displays monthly precipitation patterns in Saint-Cast-le-Guildo, 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 Saint-Cast-le-Guildo, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec858766396375435679139117159
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint-Cast-le-Guildo

In Saint-Cast-le-Guildo in May humidity is 80%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making any outdoor activity feel stifling and heavy, which can lead to fatigue for travelers unaccustomed to such moist conditions.

May Average Humidity in Saint-Cast-le-Guildo

This chart illustrates the average monthly humidity levels in Saint-Cast-le-Guildo, 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 Saint-Cast-le-Guildo is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%86%85%80%80%69%73%79%89%92%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Saint-Cast-le-Guildo

In Saint-Cast-le-Guildo 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 Saint-Cast-le-Guildo.

Maximum UV Index Levels in Saint-Cast-le-Guildo for May

The chart shows the monthly maximum UV Index (UVI) for Saint-Cast-le-Guildo 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 Saint-Cast-le-Guildo typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Saint-Cast-le-Guildo 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 Saint-Cast-le-Guildo Compares to Other Months

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

This table compares monthly weather conditions in Saint-Cast-le-Guildo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)85 mm (3.4 inches)90%low
February Weather8°C (47°F)87 mm (3.4 inches)89%moderate
March Weather9°C (49°F)66 mm (2.6 inches)86%moderate
April Weather10°C (51°F)39 mm (1.5 inches)84%high
May Weather13°C (55°F)63 mm (2.5 inches)80%very high
June Weather15°C (60°F)75 mm (3.0 inches)80%very high
July Weather17°C (64°F)43 mm (1.7 inches)69%very high
August Weather18°C (64°F)56 mm (2.2 inches)73%very high
September Weather17°C (63°F)79 mm (3.1 inches)79%high
October Weather15°C (59°F)139 mm (5.5 inches)89%moderate
November Weather11°C (53°F)117 mm (4.6 inches)92%low
December Weather10°C (50°F)159 mm (6.2 inches)92%low

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