Last updated: August 23, 2025
In Mery-sur-Seine, France, the average temperature in May hovers around 15°C (59°F). Prepare for a wide temperature range, with minimums dipping to 1°C (34°F) and maximums soaring up to 33°C (91°F). During the month, expect an average precipitation of 69 mm (2.7 in) spread over 11 days, accompanied by a relatively high average humidity of 82%. Stay prepared for varied weather conditions!
In May in Mery-sur-Seine, the average temperature is 15°C (59°F). The maximum can reach 33°C (91°F), while the minimum can drop as low as 1°C (34°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while preparing for some temperature fluctuations.
In Mery-sur-Seine in May, the total precipitation amount is 69 mm (2.7 in) spread across 11 days.
In Mery-sur-Seine in May, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.
In Mery-sur-Seine 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 Mery-sur-Seine.
UV Risk Categories
Weather in Mery-sur-Seine varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Mery-sur-Seine, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 77 mm (3.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 66 mm (2.6 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 69 mm (2.7 inches) | 86% | moderate |
| April Weather | 11°C (52°F) | 32 mm (1.3 inches) | 84% | high |
| May Weather | 15°C (59°F) | 69 mm (2.7 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 66 mm (2.6 inches) | 82% | very high |
| July Weather | 21°C (70°F) | 52 mm (2.0 inches) | 80% | very high |
| August Weather | 21°C (69°F) | 48 mm (1.9 inches) | 76% | very high |
| September Weather | 17°C (63°F) | 51 mm (2.0 inches) | 81% | high |
| October Weather | 13°C (55°F) | 76 mm (3.0 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 69 mm (2.7 inches) | 92% | low |
| December Weather | 6°C (43°F) | 109 mm (4.3 inches) | 93% | low |