September weather forecastHvar, Croatia
September
Weather in September
September marks the transition from the hot summers to the cooler autumns. Temperatures start to cool, but early September still offers warmer days with the highest average temperatures of 23.6°C (74.5°F). With the departure of the high season, Hvar embraces a more laid-back atmosphere. It is a splendid time to visit for those who prefer a less crowded but still vibrant environment.Temperature
The start of September in Hvar comes with a small reduction in the average high-temperature, subtly receding from 27.3°C (81.1°F) in August to a still warm 23.6°C (74.5°F). Hvar records a consistent average nighttime temperature of 20.7°C (69.3°F) in September, slightly lower than the daytime high.Humidity
The average relative humidity in September in Hvar is 65%.Rainfall
In Hvar, in September, during 10.2 rainfall days, 60mm (2.36") of precipitation is typically accumulated. Throughout the year, there are 130 rainfall days, and 636mm (25.04") of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Hvar.Sea temperature
In September, the average sea temperature in Hvar is 23.9°C (75°F).Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 23.9°C (75°F) waters. (For comparison, the Olympic swimming standard is set between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 06:19 and sunset at 19:29. On the last day of September, in Hvar, sunrise is at 06:50 and sunset at 18:37 CEST.
Sunshine
The average sunshine in September is 10.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hvar, Croatia
- Average high temperature in September: 23.6°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (8°C).
Average pressure in September
Hvar, Croatia
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in September
Hvar, Croatia
- Average wind speed in September: 14.6km/h
The windiest month (with the highest average wind speed) is February (21km/h).
The calmest month (with the lowest average wind speed) is August (12.7km/h).
Average humidity in September
Hvar, Croatia
- Average humidity in September: 65%
The months with the highest relative humidity are April and November (71%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Hvar, Croatia
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is November (109mm).
The driest month (with the least rainfall) is August (16mm).
Average rainfall days in September
Hvar, Croatia
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is November (14.1 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in September
Hvar, Croatia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (2mm).
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
Hvar, 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 March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Hvar, Croatia
- Average sea temperature in September: 23.9°C
The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (13.8°C).
Average daylight in September /
Average sunshine in September
Hvar, 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 42min
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 48min).
Average sunshine days in September
Hvar, Croatia
- Average sunshine days in September: 18 days
The month with the most sunshine days is August (24.4 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in September
Hvar, Croatia
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Hvar, Croatia
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Hvar, 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).
