Last updated: August 23, 2025
In May, the average temperature in Saint-Omer, France hovers around 13°C (56°F), with daily temperatures ranging from a cool 1°C (35°F) to a warm 28°C (82°F). Expect 69 mm (2.7 in) of precipitation over approximately 11 days, contributing to an average humidity of 82%.
In May, in Saint-Omer, the average temperature is 13°C (56°F). Maximums can reach 28°C (82°F), while minimums can drop as low as 1°C (35°F). This wide range of temperatures makes Saint-Omer an ideal destination for travelers who enjoy both mild and warmer conditions.
In Saint-Omer in May, the total precipitation amount is 69 mm (2.7 in) spread across 11 days.
In Saint-Omer 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 Saint-Omer in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Saint-Omer.
UV Risk Categories
Weather in Saint-Omer varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saint-Omer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 63 mm (2.5 inches) | 91% | low |
| February Weather | 6°C (43°F) | 60 mm (2.3 inches) | 89% | low |
| March Weather | 8°C (46°F) | 64 mm (2.5 inches) | 86% | moderate |
| April Weather | 10°C (50°F) | 37 mm (1.4 inches) | 85% | moderate |
| May Weather | 13°C (56°F) | 69 mm (2.7 inches) | 82% | high |
| June Weather | 17°C (63°F) | 70 mm (2.8 inches) | 81% | very high |
| July Weather | 18°C (65°F) | 52 mm (2.0 inches) | 76% | very high |
| August Weather | 18°C (65°F) | 77 mm (3.1 inches) | 73% | high |
| September Weather | 15°C (60°F) | 55 mm (2.1 inches) | 80% | moderate |
| October Weather | 13°C (55°F) | 83 mm (3.3 inches) | 89% | moderate |
| November Weather | 8°C (47°F) | 60 mm (2.4 inches) | 92% | low |
| December Weather | 6°C (43°F) | 100 mm (3.9 inches) | 92% | low |