September weather forecastSlano, Croatia
September
Weather in September
The first month of the autumn, September, is still a warm month in Slano, Croatia, with an average temperature fluctuating between 23.4°C (74.1°F) and 18.2°C (64.8°F).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from 27.9°C (82.2°F) in August to a still moderately hot 23.4°C (74.1°F). September sees the temperature falling to a mean low of 18.2°C (64.8°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In Slano, Croatia, in September, during 9.9 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, in Slano, Croatia, there are 134.6 rainfall days, and 827mm (32.56") of precipitation is accumulated.Snowfall
In Slano, snow does not fall in January, March through December.Sea temperature
In Slano, the average seawater temperature in September is 24.3°C (75.7°F).Note: For someone not comfortable with cold, swimming in 24.3°C (75.7°F) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.
Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 06:13 and sunset at 19:22. On the last day of September, sunrise is at 06:45 and sunset at 18:31 CEST.
Sunshine
The average sunshine in September is 10.4h.UV index
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 average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slano, Croatia
- Average high temperature in September: 23.4°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (9.4°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (5.8°C).
Average pressure in September
Slano, Croatia
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Slano, Croatia
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in September
Slano, Croatia
- Average humidity in September: 64%
The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Slano, Croatia
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is November (165mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in September
Slano, Croatia
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in September
Slano, Croatia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Slano, Croatia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Slano, Croatia
- Average sea temperature in September: 24.3°C
The best months for swimming (with the highest average sea temperature) are July and August (25.3°C).
The coldest month (with the lowest average sea temperature) is January (14°C).
Average daylight in September /
Average sunshine in September
Slano, Croatia
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Slano, Croatia
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in September
Slano, Croatia
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Slano, Croatia
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Slano, Croatia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
