Last updated: August 23, 2025
In May, the average temperature in Saint-Jean, France hovers around 7°C (44°F), with extremes ranging from a brisk -9°C (17°F) to a pleasantly warm 20°C (69°F). Expect a fair amount of rain, totaling 143 mm (5.6 in) over 17 days, contributing to an average humidity of 78%. Prepare accordingly to make the most of this varied climate!
In May in Saint-Jean, the average temperature is 7°C (44°F). The maximum can reach 20°C (69°F), and the minimum can be as low as -9°C (17°F). Be prepared for a wide range of temperatures when traveling, as conditions can vary significantly.
In Saint-Jean in May, the total precipitation amount is 143 mm (5.6 in) spread over 17 days.
In Saint-Jean in May, humidity is 78%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek cozy indoor spaces or warm beverages for comfort.
In Saint-Jean in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Saint-Jean.
UV Risk Categories
Weather in Saint-Jean varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saint-Jean, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 81 mm (3.2 inches) | 91% | moderate |
| February Weather | -3°C (27°F) | 73 mm (2.9 inches) | 87% | moderate |
| March Weather | -1°C (30°F) | 115 mm (4.5 inches) | 84% | very high |
| April Weather | 2°C (36°F) | 83 mm (3.3 inches) | 83% | very high |
| May Weather | 7°C (44°F) | 143 mm (5.6 inches) | 78% | very high |
| June Weather | 12°C (54°F) | 99 mm (3.9 inches) | 75% | extreme |
| July Weather | 14°C (58°F) | 69 mm (2.7 inches) | 72% | very high |
| August Weather | 14°C (58°F) | 72 mm (2.8 inches) | 63% | very high |
| September Weather | 10°C (51°F) | 64 mm (2.5 inches) | 73% | very high |
| October Weather | 6°C (43°F) | 106 mm (4.2 inches) | 89% | high |
| November Weather | -1°C (31°F) | 106 mm (4.2 inches) | 90% | moderate |
| December Weather | -5°C (24°F) | 184 mm (7.3 inches) | 90% | low |