September weather forecastCalasetta, Italy
September
Weather in September
September, the first month of the autumn in Calasetta, is still a warm month, with an average temperature fluctuating between 26.2°C (79.2°F) and 19.4°C (66.9°F).Temperature
The arrival of September correlates with a minor temperature reduction, down from August's tropical 30.6°C (87.1°F) to a moderately hot 26.2°C (79.2°F). Calasetta encounters a steady low-temperature average of 19.4°C (66.9°F) throughout the month of September.Humidity
The average relative humidity in September is 68%.Rainfall
In Calasetta, during September, the rain falls for 8.4 days and regularly aggregates up to 21mm (0.83") of precipitation. In Calasetta, during the entire year, the rain falls for 107.7 days and collects up to 284mm (11.18") of precipitation.Snowfall
In Calasetta, snow does not fall in January, March through November.Sea temperature
In Calasetta, in September, the average water temperature is 23.8°C (74.8°F).Note: If cold is not your friend, swimming at 23.8°C (74.8°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 06:55 and sunset at 19:57. On the last day of September, in Calasetta, sunrise is at 07:22 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine in Calasetta is 10.3h.UV index
The average daily maximum UV index in September in Calasetta is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! Reflecting off water and sand, UV rays are much stronger.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calasetta, Italy
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The months with the lowest average high temperature are January and February (13.4°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is February (6.7°C).
Average pressure in September
Calasetta, Italy
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is April (1014.2mbar).
Average wind speed in September
Calasetta, Italy
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in September
Calasetta, Italy
- Average humidity in September: 68%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (59%).
Average rainfall in September
Calasetta, Italy
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Calasetta, Italy
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is November (12.6 days).
The month with the least rainy days is July (3.3 days).
Average snowfall days in September
Calasetta, Italy
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Calasetta, Italy
- Average sea temperature in September: 23.8°C
The best month for swimming (with the highest average sea temperature) is August (24.5°C).
The coldest month (with the lowest average sea temperature) is February (13.8°C).
Average daylight in September /
Average sunshine in September
Calasetta, Italy
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Calasetta, Italy
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is July (26.4 days).
The month with the least sunshine days is November (14.4 days).
Average UV index in September
Calasetta, Italy
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Calasetta, Italy
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in September
Calasetta, Italy
- 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).
