Last updated: August 23, 2025
In May, the average temperature in Simmern, Germany hovers around 13°C (55°F), with temperatures ranging from a chilly -1°C (31°F) to a warm 31°C (88°F). Expect about 69 mm (2.7 in) of precipitation spread over 12 days, contributing to an average humidity of 81%. It’s a month of varied weather, perfect for adaptable plans!
In May in Simmern, the average temperature is 13°C (55°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -1°C (31°F). Pack layers to ensure comfort during your travels, as the weather can vary significantly throughout the day.
In Simmern in May, the precipitation amount is 69 mm (2.7 in) over the span of 12 days.
In Simmern in May, humidity is 81%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making strolls outdoors feel heavy and slightly oppressive, which may be less than ideal for travelers looking to explore comfortably.
In Simmern 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 Simmern.
UV Risk Categories
Weather in Simmern varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Simmern, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 58 mm (2.3 inches) | 91% | low |
| February Weather | 3°C (38°F) | 56 mm (2.2 inches) | 90% | moderate |
| March Weather | 6°C (42°F) | 68 mm (2.7 inches) | 88% | moderate |
| April Weather | 9°C (49°F) | 37 mm (1.4 inches) | 84% | high |
| May Weather | 13°C (55°F) | 69 mm (2.7 inches) | 81% | very high |
| June Weather | 18°C (64°F) | 73 mm (2.9 inches) | 82% | very high |
| July Weather | 19°C (66°F) | 62 mm (2.4 inches) | 82% | very high |
| August Weather | 19°C (66°F) | 61 mm (2.4 inches) | 80% | high |
| September Weather | 14°C (58°F) | 48 mm (1.9 inches) | 83% | high |
| October Weather | 10°C (51°F) | 53 mm (2.1 inches) | 89% | moderate |
| November Weather | 5°C (42°F) | 50 mm (2.0 inches) | 91% | low |
| December Weather | 3°C (38°F) | 92 mm (3.6 inches) | 93% | low |