September weather forecastGeismar, Germany
September
Weather in September
September, the first month of the autumn in Geismar, is also an enjoyable month, with an average temperature ranging between min 9.3°C (48.7°F) and max 18.5°C (65.3°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to an enjoyable 18.5°C (65.3°F) from a moderately hot 23.3°C (73.9°F). Geismar, in the month of September, anticipates a consistent average low-temperature of 9.3°C (48.7°F).Humidity
In September, the average relative humidity in Geismar is 79%.Rainfall
In Geismar, in September, it is raining for 12.5 days, with typically 29mm (1.14") of accumulated precipitation. In Geismar, during the entire year, the rain falls for 164.5 days and collects up to 415mm (16.34") of precipitation.Snowfall
In Geismar, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:33 and sunset at 20:05. On the last day of September, in Geismar, sunrise is at 07:19 and sunset at 18:59 CEST.
Sunshine
In September, the average sunshine in Geismar is 8.2h.UV index
In September, the average daily maximum UV index in Geismar, Germany, is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Geismar, Germany
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in September
Geismar, Germany
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).
Average wind speed in September
Geismar, Germany
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is December (12.4km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Geismar, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Geismar, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is June (50mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Geismar, Germany
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Geismar, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (65mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Geismar, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Geismar, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Geismar, Germany
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is April (15.7 days).
The month with the least sunshine days is December (10 days).
Average UV index in September
Geismar, Germany
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Geismar, Germany
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Geismar, Germany
- Average visibility in September: 8km
The months with the highest visibility are April and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
