September weather forecastHallstatt, Austria
September
Weather in September
September ushers in the onset of autumn in Hallstatt. The transition from summer to autumn happens gradually and the weather remains pleasant. The temperature ranges between 4.7°C (40.5°F) and 14.7°C (58.5°F) and 115mm (4.53") of light snowfall indicates the approaching winter. As the humidity level moderately rises and daylight hours reduce, the evenings become noticeably cooler. The fall season brings about a golden tint to the town, making it visually captivating.Temperature
The transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from a comfortable 19.7°C (67.5°F) in August to a mild 14.7°C (58.5°F). Hallstatt observes an average nighttime temperature of 4.7°C (40.5°F) during September.Humidity
In September, the average relative humidity in Hallstatt is 84%.Rainfall
In September, in Hallstatt, the rain falls for 18 days. Throughout September, 101mm (3.98") of precipitation is accumulated. Throughout the year, there are 160.5 rainfall days, and 1270mm (50") of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall. In Hallstatt, Austria, in September, during 2 snowfall days, 115mm (4.53") of snow is typically accumulated. In Hallstatt, during the entire year, snow falls for 111.3 days and aggregates up to 4481mm (176.42") of snow.Daylight
The average length of the day in September in Hallstatt is 12h and 34min.On the first day of September, sunrise is at 06:24 and sunset at 19:45. On the last day of the month, sunrise is at 07:03 and sunset at 18:46 CEST.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Hallstatt is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 3 in September transforms into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hallstatt, Austria
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is August (19.7°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in September: 4.7°C
The month with the highest average low temperature is August (7.8°C).
The coldest month (with the lowest average low temperature) is February (-9°C).
Average pressure in September
Hallstatt, Austria
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is May (1015.6mbar).
Average wind speed in September
Hallstatt, Austria
- Average wind speed in September: 5.9km/h
The windiest months (with the highest average wind speed) are February and December (7.7km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Hallstatt, Austria
- Average humidity in September: 84%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (80%).
Average rainfall in September
Hallstatt, Austria
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is May (151mm).
The driest month (with the least rainfall) is November (63mm).
Average rainfall days in September
Hallstatt, Austria
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is June (24.7 days).
The months with the least rainy days are January and February (3.5 days).
Average snowfall in September
Hallstatt, Austria
- Average snowfall in September: 115mm
The month with the highest snowfall is January (890mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Hallstatt, Austria
- Average snowfall days in September: 2 days
The month with the highest number of snowfall days is February (19.2 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Hallstatt, 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: 7h and 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in September
Hallstatt, Austria
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (3.7 days).
Average UV index in September
Hallstatt, Austria
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Hallstatt, Austria
- Average cloud cover in September: 52
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Hallstatt, Austria
- Average visibility in September: 6km
The months with the highest visibility are April, June, July, August, October, November and December (7km).
The months with the lowest visibility are January, February and March (5km).
