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
Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a moderately hot 25.7°C (78.3°F) to a comfortable 19.9°C (67.8°F). Mellach records an average low of 9.4°C (48.9°F) throughout the nights in September.Humidity
In Mellach, Austria, the average relative humidity in September is 77%.Rainfall
In Mellach, Austria, during September, the rain falls for 12.9 days and regularly aggregates up to 48mm (1.89") of precipitation. In Mellach, during the entire year, the rain falls for 160.7 days and collects up to 559mm (22.01") of precipitation.Snowfall
In Mellach, Austria, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 34min.On the first day of September in Mellach, Austria, sunrise is at 06:18 and sunset at 19:37. On the last day of the month, sunrise is at 06:56 and sunset at 18:39 CEST.
Sunshine
In Mellach, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Mellach?
What is the average humidity in September in Mellach?
How much does it rain in Mellach in September?
When it does not snow in Mellach?
Does it snow in Mellach in September?
What is the average length of the day in September in Mellach?
When are sunrise and sunset in September in Mellach?
How long on average sun shines in September in Mellach?
How high is the UV index in September in Mellach?
Average temperature in September
Mellach, Austria
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Mellach, Austria
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is May (1015.2mbar).
Average wind speed in September
Mellach, Austria
- Average wind speed in September: 5.7km/h
The windiest months (with the highest average wind speed) are April and May (7.1km/h).
The calmest month (with the lowest average wind speed) is November (5.3km/h).
Average humidity in September
Mellach, Austria
- Average humidity in September: 77%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Mellach, Austria
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is July (85mm).
The driest month (with the least rainfall) is January (18mm).
Average rainfall days in September
Mellach, Austria
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Mellach, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (89mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Mellach, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mellach, 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: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Mellach, Austria
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (6.7 days).
Average UV index in September
Mellach, Austria
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Mellach, Austria
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Mellach, Austria
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, September, October and November (8km).
