Grassau Weather in September

With daytime temperatures of 19°C (66°F) and nighttime lows of 9°C (48°F), September in Grassau brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 156 mm (6.1 in) falls on average.

Rainfall in Grassau in September

Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 156 mm (6.1 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Grassau in September

Daytime temperatures in Grassau reach 19°C (66°F) in September, dropping to 9°C (48°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Grassau in September

You can expect a moderate amount of sunlight, with approximately 155 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Grassau.