September weather forecastOlešče, Slovenia
September
Weather in September
September, the first month of the autumn in Olešče, is still a refreshing month, with an average temperature varying between 9.4°C (48.9°F) and 19.3°C (66.7°F).Temperature
Olešče's September weather features a mild decline in high-temperatures, reducing from a warm 25.2°C (77.4°F) in August to an enjoyable 19.3°C (66.7°F). During the nights in September, an average low-temperature of 9.4°C (48.9°F) is observed in Olešče.Humidity
In September, the average relative humidity in Olešče is 82%.Rainfall
In Olešče, during September, the rain falls for 15.1 days and regularly aggregates up to 77mm (3.03") of precipitation. Throughout the year, there are 179.3 rainfall days, and 854mm (33.62") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Olešče.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September in Olešče, sunrise is at 06:19 and sunset at 19:37. On the last day of the month, sunrise is at 06:56 and sunset at 18:40 CEST.
Sunshine
In Olešče, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Olešče is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Act with care - The need to guard against sun damage is communicated. To guard against the harmful effects of the Sun, minimize exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olešče, Slovenia
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is August (25.2°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 August (13°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Olešče, Slovenia
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are May and June (1015mbar).
Average wind speed in September
Olešče, Slovenia
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).
Average humidity in September
Olešče, Slovenia
- Average humidity in September: 82%
The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Olešče, Slovenia
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is May (120mm).
The driest month (with the least rainfall) is January (33mm).
Average rainfall days in September
Olešče, Slovenia
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Olešče, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (185mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Olešče, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 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
Olešče, Slovenia
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Olešče, Slovenia
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is May (5.9 days).
Average UV index in September
Olešče, Slovenia
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Olešče, Slovenia
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Olešče, Slovenia
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October and November (7km).





