September weather forecastPrem, Slovenia
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Prem, Slovenia, with an average temperature ranging between min 10.1°C (50.2°F) and max 19.6°C (67.3°F).Temperature
Prem in September demonstrates a small temperature transition, adjusting from an average high of a moderately hot 25.3°C (77.5°F) in August to a comfortable 19.6°C (67.3°F). An average nighttime temperature of 10.1°C (50.2°F) is recorded during September.Humidity
In September, the average relative humidity in Prem is 81%.Rainfall
In Prem, Slovenia, during September, the rain falls for 16 days and regularly aggregates up to 113mm (4.45") of precipitation. Throughout the year, in Prem, there are 189.6 rainfall days, and 1136mm (44.72") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Prem, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:25 and sunset at 19:41. On the last day of the month, sunrise is at 07:00 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be vigilant - Preventing sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Prem, Slovenia
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Prem, Slovenia
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The months with the lowest atmospheric pressure are May and June (1014.8mbar).
Average wind speed in September
Prem, Slovenia
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (9.7km/h).
The calmest months (with the lowest average wind speed) are July and August (7km/h).
Average humidity in September
Prem, Slovenia
- Average humidity in September: 81%
The month with the highest relative humidity is November (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Prem, Slovenia
- Average rainfall in September: 113mm
The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is April (70mm).
Average rainfall days in September
Prem, Slovenia
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is May (22.5 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Prem, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (273mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Prem, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Prem, Slovenia
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).
Average sunshine days in September
Prem, Slovenia
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.3 days).
Average UV index in September
Prem, 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, February, November and December (UV index 2).
Average cloud cover in September
Prem, Slovenia
- Average cloud cover in September: 37
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Prem, 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, November and December (7km).
