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
September
Weather in September
Temperature
The transition to September results in a modest reduction in average high-temperature, moving from an agreeable 22.3°C (72.1°F) in August to an enjoyable 18.2°C (64.8°F). Grinau witnesses an average low-temperature of 11.2°C (52.2°F) throughout the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, in Grinau, the rain falls for 13.7 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Grinau, there are 167.7 rainfall days, and 403mm (15.87") of precipitation is accumulated.Snowfall
In Grinau, Germany, snow does not fall in May through October.Daylight
In Grinau, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 06:27 and sunset at 20:07. On the last day of the month, sunrise is at 07:18 and sunset at 18:56 CEST.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September in Grinau is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take precautions - Protection against sun damage is advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grinau in September?
What is the average humidity in September in Grinau?
How much does it rain in Grinau in September?
When it does not snow in Grinau?
What is the average length of the day in September in Grinau?
When are sunrise and sunset in September in Grinau?
How long on average sun shines in September in Grinau?
What is the UV index intensity in September in Grinau?
Average temperature in September
Grinau, Germany
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).
Average pressure in September
Grinau, Germany
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is September (1016.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in September
Grinau, Germany
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is December (18.6km/h).
The calmest month (with the lowest average wind speed) is August (12.8km/h).
Average humidity in September
Grinau, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Grinau, Germany
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (47mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Grinau, Germany
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Grinau, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (25mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Grinau, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Grinau, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Grinau, Germany
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (10.1 days).
Average UV index in September
Grinau, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Grinau, Germany
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Grinau, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
