September weather forecastGrieskirchen, Austria

September

Weather in September

September, the first month of the autumn in Grieskirchen, is also an enjoyable month, with an average temperature varying between 18.7°C (65.7°F) and 8.9°C (48°F).

Temperature

Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 23.9°C (75°F) to a refreshing 18.7°C (65.7°F). Grieskirchen, in September, witnesses an average low-temperature of 8.9°C (48°F).

Humidity

In September, the average relative humidity in Grieskirchen is 81%.

Rainfall

In Grieskirchen, in September, during 14.2 rainfall days, 60mm (2.36") of precipitation is typically accumulated. Throughout the year, in Grieskirchen, there are 172.5 rainfall days, and 702mm (27.64") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Grieskirchen, the average length of the day in September is 12h and 35min.
On the first day of September in Grieskirchen, Austria, sunrise is at 06:23 and sunset at 19:46. On the last day of the month, sunrise is at 07:03 and sunset at 18:45 CEST.

Sunshine

In Grieskirchen, the average sunshine in September is 8.5h.

UV index

In Grieskirchen, Austria, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - Suggestions to stave off sun damage are provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

In September, in Grieskirchen, the average high-temperature is 18.7°C (65.7°F), and the average low-temperature is 8.9°C (48°F).

In September, the average relative humidity is 81%.

In Grieskirchen, during September, the rain falls for 14.2 days and regularly aggregates up to 60mm (2.36") of precipitation.

June through September are months without snowfall in Grieskirchen, Austria.

In Grieskirchen, in September, it doesn't snow. In October, it regularly snows.

The average day length in September in Grieskirchen, Austria, is 12h and 35min.

In September, on the first day of the month, sunrise is at 06:23 and sunset at 19:46. On the last day of the month, in Grieskirchen, Austria, sunrise is at 07:03 and sunset at 18:45 CEST.

In Grieskirchen, Austria, the average sunshine duration in September is 8.5h.

In September, the average daily maximum UV index in Grieskirchen is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Grieskirchen, Austria

  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in September: 8.9°C

The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

Average pressure in September
Grieskirchen, Austria

  • Average pressure in September: 1018.5mbar

The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.6mbar).

Average wind speed in September
Grieskirchen, Austria

  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is March (10.3km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).

Average humidity in September
Grieskirchen, Austria

  • Average humidity in September: 81%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Grieskirchen, Austria

  • Average rainfall in September: 60mm

The wettest months (with the highest rainfall) are May, June and July (81mm).
The driest month (with the least rainfall) is April (27mm).

Average rainfall days in September
Grieskirchen, Austria

  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9.9 days).

Average snowfall in September
Grieskirchen, Austria

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (177mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Grieskirchen, Austria

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Grieskirchen, Austria

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Grieskirchen, Austria

  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in September
Grieskirchen, Austria

  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Grieskirchen, Austria

  • Average cloud cover in September: 39

The months with the most cloud cover are January and February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Grieskirchen, Austria

  • Average visibility in September: 8km

The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January and February (7km).