Mainz Weather in September

Mainz in September sees pleasant daytime temperatures of 21°C (70°F) and nighttime lows of 11°C (52°F). Rainfall is fairly high this month at around 61 mm (2.4 in), so pack a rain jacket to stay dry.

Rainfall in Mainz in September

You can typically expect 12 days of rain this month, averaging around 61 mm (2.4 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Mainz in September

September is a good time to be in Mainz. Days are excellent, reaching 21°C (70°F), with nights around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Mainz in September

The month brings about 158 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Mainz.