September weather forecastCerna, Croatia
September
Weather in September
September, the first month of the autumn in Cerna, is still a warm month, with an average temperature varying between 13.2°C (55.8°F) and 24.1°C (75.4°F).Temperature
The start of September signals a decrease in the average high-temperature, transitioning from a hot 30.2°C (86.4°F) in August to a warm 24.1°C (75.4°F). September nights in Cerna are marked by an average low-temperature of 13.2°C (55.8°F).Humidity
In Cerna, the average relative humidity in September is 62%.Rainfall
In Cerna, Croatia, in September, during 7.5 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Cerna, there are 107.6 rainfall days, and 332mm (13.07") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Cerna.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:07 and sunset at 19:22. On the last day of September, sunrise is at 06:42 and sunset at 18:27 CEST.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Cerna, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cerna, Croatia
- Average high temperature in September: 24.1°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is August (16.6°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).
Average pressure in September
Cerna, Croatia
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is June (1014.3mbar).
Average wind speed in September
Cerna, Croatia
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in September
Cerna, Croatia
- Average humidity in September: 62%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Cerna, Croatia
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is May (50mm).
The driest months (with the least rainfall) are August and November (18mm).
Average rainfall days in September
Cerna, Croatia
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in September
Cerna, Croatia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (85mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Cerna, Croatia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cerna, 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 18min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Cerna, Croatia
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is August (23.7 days).
The month with the least sunshine days is June (15 days).
Average UV index in September
Cerna, Croatia
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Cerna, Croatia
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Cerna, Croatia
- Average visibility in September: 10km
The months with the highest visibility are March, April, June, July, August, September, October and November (10km).
The month with the lowest visibility is January (8km).
