Last updated: August 23, 2025
In May, the average temperature in Fontaine-la-Guyon, France hovers around 13°C (56°F). Expect a chilly minimum of -1°C (31°F) and the potential for a warm maximum of 29°C (84°F). With an average humidity of 82%, you'll want to prepare for some moisture, as the region experiences about 81 mm (3.2 in) of precipitation over 13 days this month.
In May in Fontaine-la-Guyon, the average temperature is 13°C (56°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as -1°C (31°F). This varied climate makes Fontaine-la-Guyon an ideal destination for travelers seeking a mix of mild and warm weather.
In Fontaine-la-Guyon in May, the precipitation amount is 81 mm (3.2 in) over the course of 13 days.
In Fontaine-la-Guyon in May, humidity is 82%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel much cooler than it is and creating a heavy atmosphere that can be exhausting for travelers.
In Fontaine-la-Guyon 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 Fontaine-la-Guyon.
UV Risk Categories
Weather in Fontaine-la-Guyon varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Fontaine-la-Guyon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 47 mm (1.8 inches) | 91% | low |
| February Weather | 6°C (43°F) | 58 mm (2.3 inches) | 89% | moderate |
| March Weather | 8°C (46°F) | 70 mm (2.8 inches) | 85% | moderate |
| April Weather | 10°C (51°F) | 33 mm (1.3 inches) | 84% | high |
| May Weather | 13°C (56°F) | 81 mm (3.2 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 83 mm (3.3 inches) | 80% | very high |
| July Weather | 20°C (68°F) | 36 mm (1.4 inches) | 73% | very high |
| August Weather | 19°C (67°F) | 53 mm (2.1 inches) | 68% | very high |
| September Weather | 16°C (61°F) | 44 mm (1.7 inches) | 76% | high |
| October Weather | 12°C (54°F) | 73 mm (2.9 inches) | 88% | moderate |
| November Weather | 7°C (46°F) | 64 mm (2.5 inches) | 92% | low |
| December Weather | 6°C (43°F) | 86 mm (3.4 inches) | 93% | low |