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 a comfortable 17.3°C (63.1°F) in August to a cool 12.8°C (55°F). In September, Flattach records an average nighttime temperature of 2.5°C (36.5°F).Humidity
In September, the average relative humidity is 86%.Rainfall
In Flattach, Austria, in September, it is raining for 19.2 days, with typically 109mm (4.29") of accumulated precipitation. Throughout the year, in Flattach, there are 193.8 rainfall days, and 1313mm (51.69") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Flattach. September is the first month it typically snows. Throughout September, in the average 1.4 snowfall days, it receives 87mm (3.43") of snow. In Flattach, during the entire year, snow falls for 118.8 days and aggregates up to 3402mm (133.94") of snow.Daylight
In September, the average length of the day in Flattach, Austria, is 12h and 34min.On the first day of September, sunrise is at 06:27 and sunset at 19:47. On the last day of the month, sunrise is at 07:05 and sunset at 18:49 CEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during September translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Flattach in September?
What is the average humidity in September in Flattach?
How many days does it rain in September in Flattach?
When does it start to snow in Flattach?
What is the average length of the day in September in Flattach?
What time are sunrise and sunset in September in Flattach?
How long on average sun shines in September in Flattach?
What is the UV index reading in September in Flattach?
Average temperature in September
Flattach, Austria
- Average high temperature in September: 12.8°C
The warmest month (with the highest average high temperature) is August (17.3°C).
The month with the lowest average high temperature is January (-3.6°C).
- Average low temperature in September: 2.5°C
The month with the highest average low temperature is July (5.8°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).
Average pressure in September
Flattach, Austria
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is May (1015.4mbar).
Average wind speed in September
Flattach, Austria
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.7km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Flattach, Austria
- Average humidity in September: 86%
The months with the highest relative humidity are February and March (93%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Flattach, Austria
- Average rainfall in September: 109mm
The wettest months (with the highest rainfall) are July and August (164mm).
The driest month (with the least rainfall) is February (63mm).
Average rainfall days in September
Flattach, Austria
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is July (26.6 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Flattach, Austria
- Average snowfall in September: 87mm
The month with the highest snowfall is November (653mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Flattach, Austria
- Average snowfall days in September: 1.4 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Flattach, Austria
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Flattach, Austria
- Average sunshine days in September: 8 days
The month with the most sunshine days is October (12.5 days).
The month with the least sunshine days is July (2.4 days).
Average UV index in September
Flattach, Austria
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March and November (UV index 1).
Average cloud cover in September
Flattach, Austria
- Average cloud cover in September: 55
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 47).
Average visibility in September
Flattach, Austria
- Average visibility in September: 6km
The months with the highest visibility are June, July, August and December (7km).
The months with the lowest visibility are January, February, March, April, May, September, October and November (6km).
