Last updated: August 23, 2025
In May, the average temperature in Achern, Germany hovers around 15°C (59°F). Expect temperatures to range from a chilly 2°C (36°F) at night to a warm 31°C (89°F) during the day. With an average precipitation of 76 mm (3.0 in) over 13 days, plan for some wet weather. Don't forget, the average humidity is quite high at 79%, adding to the overall climate experience!
In May in Achern, the average temperature is 15°C (59°F). Maximums can reach up to 31°C (89°F), while minimums can drop as low as 2°C (36°F). Travelers should prepare for a wide range of temperatures and pack accordingly.
In Achern in May, the total precipitation amount is 76 mm (3.0 in), which occurs over the course of 13 days.
In Achern in May humidity is 79%. With an average temperature of 15°C (59°F), this humidity feels like a muggy embrace that clings to your skin, making outdoor activities somewhat uncomfortable. Travelers may find themselves frequently seeking shelter or refreshing drinks to combat the warm, damp air, as the moisture in the atmosphere feels particularly heavy, especially during longer excursions.
In Achern 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 Achern.
UV Risk Categories
Weather in Achern varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Achern, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 89 mm (3.5 inches) | 91% | low |
| February Weather | 5°C (41°F) | 79 mm (3.1 inches) | 89% | moderate |
| March Weather | 7°C (45°F) | 85 mm (3.3 inches) | 87% | moderate |
| April Weather | 11°C (52°F) | 36 mm (1.4 inches) | 83% | high |
| May Weather | 15°C (59°F) | 76 mm (3.0 inches) | 79% | very high |
| June Weather | 20°C (68°F) | 75 mm (2.9 inches) | 82% | very high |
| July Weather | 21°C (71°F) | 64 mm (2.5 inches) | 83% | very high |
| August Weather | 21°C (70°F) | 54 mm (2.1 inches) | 84% | very high |
| September Weather | 17°C (63°F) | 48 mm (1.9 inches) | 85% | high |
| October Weather | 12°C (54°F) | 80 mm (3.2 inches) | 88% | moderate |
| November Weather | 7°C (44°F) | 63 mm (2.5 inches) | 89% | low |
| December Weather | 5°C (40°F) | 124 mm (4.9 inches) | 91% | low |