September weather forecastGruča, Slovenia
September
Weather in September
September, the first month of the autumn in Gruča, is also an agreeable month, with temperature in the range of an average low of 9.4°C (48.9°F) and an average high of 20.2°C (68.4°F).Temperature
September brings a minor decrease, with the average high-temperature reducing from a warm 26.3°C (79.3°F) in August to an agreeable 20.2°C (68.4°F). The temperature dips to an average of 9.4°C (48.9°F) during September nights.Humidity
In Gruča, Slovenia, the average relative humidity in September is 81%.Rainfall
In Gruča, in September, it is raining for 13.6 days, with typically 67mm (2.64") of accumulated precipitation. Throughout the year, in Gruča, there are 159.5 rainfall days, and 752mm (29.61") of precipitation is accumulated.Snowfall
In Gruča, snow does not fall in May through September.Daylight
In September, the average length of the day in Gruča is 12h and 32min.On the first day of September, sunrise is at 06:20 and sunset at 19:36. On the last day of the month, sunrise is at 06:56 and sunset at 18:40 CEST.
Sunshine
In September, the average sunshine in Gruča is 9h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gruča, Slovenia
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 9.4°C
The months with the highest average low temperature are July and August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Gruča, Slovenia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The months with the lowest atmospheric pressure are May and June (1014.8mbar).
Average wind speed in September
Gruča, Slovenia
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Gruča, Slovenia
- Average humidity in September: 81%
The months with the highest relative humidity are January and November (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Gruča, Slovenia
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is May (106mm).
The driest month (with the least rainfall) is January (42mm).
Average rainfall days in September
Gruča, Slovenia
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in September
Gruča, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (154mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Gruča, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 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
Gruča, 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 0min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Gruča, Slovenia
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Gruča, Slovenia
- Average UV index in September: 3
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
Gruča, Slovenia
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Gruča, 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).





