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 snowfall in September
- Average snowfall days 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
September brings a minor shift in the average high-temperature, adjusting from a hot 30.6°C (87.1°F) in August to a moderately hot 26.1°C (79°F). Ostuni experiences a nighttime temperature average of 20.4°C (68.7°F) during September.Humidity
In Ostuni, the average relative humidity in September is 63%.Rainfall
In Ostuni, in September, it is raining for 10.8 days, with typically 28mm (1.1") of accumulated precipitation. Throughout the year, there are 135.6 rainfall days, and 441mm (17.36") of precipitation is accumulated.Snowfall
In Ostuni, snow does not fall in March through November.Daylight
In Ostuni, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:17 and sunset at 19:21. On the last day of September, sunrise is at 06:45 and sunset at 18:33 CEST.
Sunshine
The average sunshine in September is 10.6h.UV index
In September, the average daily maximum UV index in Ostuni is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Ostuni?
What is the average humidity in September in Ostuni?
How much does it rain in Ostuni in September?
When it does not snow in Ostuni?
How many hours of daylight does Ostuni have in September?
What time are sunrise and sunset in September in Ostuni?
How long on average sun shines in September in Ostuni?
What is the UV index intensity in September in Ostuni?
Average temperature in September
Ostuni, Italy
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is August (23.6°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).
Average pressure in September
Ostuni, Italy
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is December (1017.7mbar).
The month with the lowest atmospheric pressure is July (1012.5mbar).
Average wind speed in September
Ostuni, Italy
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (20.5km/h).
The calmest months (with the lowest average wind speed) are July and August (13.1km/h).
Average humidity in September
Ostuni, Italy
- Average humidity in September: 63%
The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is July (56%).
Average rainfall in September
Ostuni, Italy
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Ostuni, Italy
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (5 days).
Average snowfall in September
Ostuni, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ostuni, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Ostuni, 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 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Ostuni, Italy
- Average sunshine days in September: 16.6 days
The months with the most sunshine days are July and August (23.1 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in September
Ostuni, Italy
- Average UV index in September: 6
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
Ostuni, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Ostuni, 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).
