September weather forecastSlunj, Croatia
September
Weather in September
September, the first month of the autumn in Slunj, is also an agreeable month, with an average temperature fluctuating between 9.8°C (49.6°F) and 20.2°C (68.4°F).Temperature
Slunj, Croatia, experiences a temperature shift at the start of September, with average high-temperatures adjusting from a moderately hot 26.3°C (79.3°F) in August to a pleasant 20.2°C (68.4°F). Nighttime temperature experiences an average drop to a frosty 9.8°C (49.6°F) in September.Humidity
In Slunj, Croatia, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 11.6 days. Throughout September, 74mm (2.91") of precipitation is accumulated. Throughout the year, in Slunj, there are 166.6 rainfall days, and 817mm (32.17") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Slunj.Daylight
In Slunj, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:20 and sunset at 19:34. On the last day of the month, sunrise is at 06:55 and sunset at 18:39 CEST.
Sunshine
In Slunj, Croatia, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Slunj is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slunj, Croatia
- 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 (3.4°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-2.6°C).
Average pressure in September
Slunj, Croatia
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is July (1014.4mbar).
Average wind speed in September
Slunj, Croatia
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is March (10.3km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Slunj, Croatia
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Slunj, Croatia
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is May (100mm).
The driest month (with the least rainfall) is August (49mm).
Average rainfall days in September
Slunj, Croatia
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is August (10.3 days).
Average snowfall in September
Slunj, Croatia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (249mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Slunj, Croatia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Slunj, Croatia
- 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 month with the most sunshine is August (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Slunj, Croatia
- Average sunshine days in September: 17 days
The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is May (8.5 days).
Average UV index in September
Slunj, Croatia
- 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, October, November and December (UV index 2).
Average cloud cover in September
Slunj, Croatia
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Slunj, Croatia
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January and November (7km).
