Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from 27.5°C (81.5°F) in August to a still moderately hot 24.3°C (75.7°F). Alghero, during the nights of September, averages a temperature close to its daytime high, at a pleasant 20.4°C (68.7°F).Humidity
The average relative humidity in September in Alghero, Italy, is 70%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Alghero, during the entire year, the rain falls for 122.7 days and collects up to 407mm (16.02") of precipitation.Sea temperature
In Alghero, the average seawater temperature in September is 23.4°C (74.1°F).Note: Consideration of an individual's cold resistance, combined with conditions like sunshine, wind, and temperature, suggests that swimming in 23.4°C (74.1°F) water can be delightful. (Olympic swimming is usually in 25°C (77°F) to 28°C (82.4°F) water.)
Daylight
In September, the average length of the day in Alghero is 12h and 28min.On the first day of September in Alghero, sunrise is at 06:54 and sunset at 19:58. On the last day of the month, sunrise is at 07:22 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine in Alghero is 10h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alghero in September?
What is the average humidity in September in Alghero?
How many days does it rain in September in Alghero?
What is the sea temperature in September in Alghero?
What is the average length of the day in September in Alghero?
When are sunrise and sunset in September in Alghero?
How many hours of sunshine does Alghero have in September?
What is the UV index intensity in September in Alghero?
Average temperature in September
Alghero, Italy
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is February (12.5°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is August (22.5°C).
The coldest month (with the lowest average low temperature) is February (8.7°C).
Average pressure in September
Alghero, Italy
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in September
Alghero, Italy
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is January (20.3km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Alghero, Italy
- Average humidity in September: 70%
The months with the highest relative humidity are January, March and April (76%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Alghero, Italy
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (91mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Alghero, Italy
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is July (3.4 days).
Average sea temperature in September
Alghero, Italy
- Average sea temperature in September: 23.4°C
The best month for swimming (with the highest average sea temperature) is August (24.1°C).
The coldest month (with the lowest average sea temperature) is February (13.4°C).
Average daylight in September /
Average sunshine in September
Alghero, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Alghero, Italy
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is July (26.1 days).
The month with the least sunshine days is November (11.8 days).
Average UV index in September
Alghero, Italy
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is February (UV index 3).
Average cloud cover in September
Alghero, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Alghero, 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).
