Last updated: August 23, 2025
In May, the average temperature in Sankt Johann, Germany is a mild 13°C (55°F). Be prepared for a wide temperature range, with minimums dipping to -1°C (31°F) and maximums soaring to 31°C (88°F). Expect 71 mm (2.8 in) of precipitation over approximately 13 days, coupled with a comfortable average humidity of 77%.
In May in Sankt Johann, 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 Sankt Johann in May, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.
In Sankt Johann in May humidity is 77%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making travel somewhat uncomfortable as the moisture clings to your skin and adds a heavier weight to your clothing, which can sap your energy as you explore.
In Sankt Johann 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 Sankt Johann.
UV Risk Categories
Weather in Sankt Johann varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sankt Johann, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 60 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) | 67 mm (2.7 inches) | 87% | moderate |
| April Weather | 9°C (48°F) | 38 mm (1.5 inches) | 84% | moderate |
| May Weather | 13°C (55°F) | 71 mm (2.8 inches) | 77% | very high |
| June Weather | 18°C (64°F) | 77 mm (3.0 inches) | 74% | very high |
| July Weather | 18°C (65°F) | 71 mm (2.8 inches) | 72% | very high |
| August Weather | 18°C (65°F) | 67 mm (2.6 inches) | 71% | high |
| September Weather | 14°C (58°F) | 49 mm (1.9 inches) | 81% | moderate |
| October Weather | 11°C (51°F) | 56 mm (2.2 inches) | 88% | moderate |
| November Weather | 5°C (42°F) | 48 mm (1.9 inches) | 91% | low |
| December Weather | 3°C (39°F) | 89 mm (3.5 inches) | 92% | low |