September weather forecastGrimmenstein, Austria
September
Weather in September
September, the first month of the autumn in Grimmenstein, is still a comfortable month, with an average temperature varying between 17.2°C (63°F) and 8.5°C (47.3°F).Temperature
A decrease in the average high-temperature is observed during September, shifting from a pleasant 22.3°C (72.1°F) in August to a refreshing 17.2°C (63°F). Grimmenstein temperatures generally rest at a low of 8.5°C (47.3°F) during the September nights.Humidity
In September, the average relative humidity in Grimmenstein is 80%.Rainfall
In Grimmenstein, in September, during 16 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Grimmenstein, during the entire year, the rain falls for 175.8 days and collects up to 900mm (35.43") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Grimmenstein, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:14 and sunset at 19:36. On the last day of the month, sunrise is at 06:53 and sunset at 18:36 CEST.
Sunshine
In Grimmenstein, the average sunshine in September is 8.3h.UV index
In Grimmenstein, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grimmenstein, Austria
- Average high temperature in September: 17.2°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-5.6°C).
Average pressure in September
Grimmenstein, Austria
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The months with the lowest atmospheric pressure are May and June (1015.2mbar).
Average wind speed in September
Grimmenstein, Austria
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is March (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).
Average humidity in September
Grimmenstein, Austria
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Grimmenstein, Austria
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is July (138mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Grimmenstein, Austria
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Grimmenstein, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (288mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grimmenstein, Austria
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Grimmenstein, Austria
- Average daylight in September: 12h and 36min
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 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Grimmenstein, Austria
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is May (4.8 days).
Average UV index in September
Grimmenstein, Austria
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Grimmenstein, Austria
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Grimmenstein, Austria
- Average visibility in September: 9km
The months with the highest visibility are April, June, July, August and September (9km).
The months with the lowest visibility are January, February and November (7km).
