Heilbronn Weather in September

With daytime temperatures of 21°C (70°F) and nighttime lows of 11°C (52°F), September in Heilbronn brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 70 mm (2.8 in) falls on average.

Rainfall in Heilbronn in September

This month experiences about 12 days of rain according to historical data, averaging 70 mm (2.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Heilbronn in September

If you're visiting Heilbronn in September, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Heilbronn in September

The area enjoys a moderate level of sunlight, with around 171 hours. It's a good balance between sunny and cloudy days.

If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Heilbronn.