Last updated: August 23, 2025
In Steinau, Germany, the average temperature in September hovers around 15°C (59°F), but be prepared for a range that can dip to a chilly 4°C (40°F) and rise to a warm 30°C (86°F). During this time, expect about 67 mm (2.6 in) of precipitation spread over 12 days, coupled with an average humidity of 81%, making for a typically humid atmosphere.
In September in Steinau, the average temperature is 15°C (59°F). Maximum temperatures can reach 30°C (86°F), while minimum temperatures can drop as low as 4°C (40°F). It's a great time to visit, so pack accordingly for both warm and cooler days!
In Steinau in September, the precipitation amount is 67 mm (2.6 in) distributed over 12 days.
In Steinau in September humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.
In Steinau in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Steinau.
UV Risk Categories
Weather in Steinau varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Steinau, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 72 mm (2.8 inches) | 91% | low |
| February Weather | 4°C (39°F) | 63 mm (2.5 inches) | 89% | low |
| March Weather | 5°C (42°F) | 69 mm (2.7 inches) | 87% | moderate |
| April Weather | 9°C (48°F) | 47 mm (1.9 inches) | 82% | moderate |
| May Weather | 13°C (55°F) | 70 mm (2.8 inches) | 73% | high |
| June Weather | 17°C (64°F) | 74 mm (2.9 inches) | 66% | very high |
| July Weather | 18°C (64°F) | 77 mm (3.0 inches) | 66% | high |
| August Weather | 18°C (65°F) | 85 mm (3.3 inches) | 67% | high |
| September Weather | 15°C (59°F) | 67 mm (2.6 inches) | 81% | moderate |
| October Weather | 12°C (53°F) | 102 mm (4.0 inches) | 86% | moderate |
| November Weather | 7°C (45°F) | 63 mm (2.5 inches) | 90% | low |
| December Weather | 5°C (40°F) | 78 mm (3.1 inches) | 90% | low |