September weather forecastFormin, Slovenia
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Formin, Slovenia, with an average temperature fluctuating between 21.2°C (70.2°F) and 11.1°C (52°F).Temperature
With September's onset, the weather shows a temperature decrease, transitioning from a warm 27.4°C (81.3°F) in August to a pleasant 21.2°C (70.2°F). During the month of September, Formin's nighttime temperature lowers to an average of 11.1°C (52°F).Humidity
The average relative humidity in September is 75%.Rainfall
In Formin, in September, during 11.9 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Formin, during the entire year, the rain falls for 150.5 days and collects up to 599mm (23.58") of precipitation.Snowfall
May through September are months without snowfall in Formin.Daylight
In Formin, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:16 and sunset at 19:34. On the last day of the month, sunrise is at 06:53 and sunset at 18:37 CEST.
Sunshine
In September, the average sunshine in Formin is 9.2h.UV index
In Formin, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 4 in September transforms into this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Formin, Slovenia
- Average high temperature in September: 21.2°C
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in September: 11.1°C
The months with the highest average low temperature are July and August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in September
Formin, Slovenia
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The months with the lowest atmospheric pressure are May and June (1014.9mbar).
Average wind speed in September
Formin, Slovenia
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in September
Formin, Slovenia
- Average humidity in September: 75%
The months with the highest relative humidity are January and November (84%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Formin, Slovenia
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is May (81mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Formin, Slovenia
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
Formin, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (117mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Formin, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 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
Formin, 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: 9h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Formin, Slovenia
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Formin, Slovenia
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Formin, Slovenia
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Formin, Slovenia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and November (8km).
