Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September indicates a minor shift in the average high-temperature, from August's agreeable 20.8°C (69.4°F) to a refreshing 15.9°C (60.6°F). During the month of September, an average temperature of 5.3°C (41.5°F) is noted during the nights.Humidity
The average relative humidity in September in Grainau is 83%.Rainfall
In Grainau, Germany, in September, it is raining for 16.6 days, with typically 78mm (3.07") of accumulated precipitation. In Grainau, during the entire year, the rain falls for 175.4 days and collects up to 1186mm (46.69") of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Grainau. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Grainau, during the entire year, snow falls for 73.3 days and aggregates up to 2099mm (82.64") of snow.Daylight
In Grainau, the average length of the day in September is 12h and 34min.On the first day of September in Grainau, sunrise is at 06:35 and sunset at 19:56. On the last day of the month, sunrise is at 07:14 and sunset at 18:57 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In Grainau, Germany, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in September in Grainau?
What is the average humidity in September in Grainau?
How many days does it rain in September in Grainau?
When does it start snowing in Grainau?
What is the average length of the day in September in Grainau?
When is the sunrise / sunset in September in Grainau?
How long on average sun shines in September in Grainau?
What is the UV index reading in September in Grainau?
Average temperature in September
Grainau, Germany
- Average high temperature in September: 15.9°C
The warmest months (with the highest average high temperature) are July and August (20.8°C).
The months with the lowest average high temperature are January and February (0.1°C).
- Average low temperature in September: 5.3°C
The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.7°C).
Average pressure in September
Grainau, Germany
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Grainau, Germany
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is December (7.7km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).
Average humidity in September
Grainau, Germany
- Average humidity in September: 83%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Grainau, Germany
- Average rainfall in September: 78mm
The wettest month (with the highest rainfall) is August (157mm).
The driest month (with the least rainfall) is November (49mm).
Average rainfall days in September
Grainau, Germany
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is May (23.9 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in September
Grainau, Germany
- Average snowfall in September: 1mm
The month with the highest snowfall is January (573mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Grainau, Germany
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (15.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Grainau, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Grainau, Germany
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is July (5.4 days).
Average UV index in September
Grainau, Germany
- Average UV index in September: 3
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in September
Grainau, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Grainau, Germany
- Average visibility in September: 7km
The months with the highest visibility are July and August (8km).
The months with the lowest visibility are January and February (5km).
Grainau, Germany
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