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 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
September's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 28.8°C (83.8°F) to a still warm 24.3°C (75.7°F). During the month of September, the nighttime temperature falls to an average of 18.5°C (65.3°F).Humidity
The average relative humidity in September in Ancona, Italy, is 66%.Rainfall
In September, in Ancona, the rain falls for 10.4 days. Throughout September, 37mm (1.46") of precipitation is accumulated. In Ancona, during the entire year, the rain falls for 148 days and collects up to 504mm (19.84") of precipitation.Snowfall
April through November are months without snowfall.Sea temperature
In September, the average sea temperature in Ancona is 23.9°C (75°F).Note: For someone not comfortable with cold, swimming in 23.9°C (75°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
In Ancona, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 06:30 and sunset at 19:41. On the last day of September, in Ancona, sunrise is at 07:02 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index in Ancona is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Ancona?
What is the average humidity in September in Ancona?
How many days does it rain in September in Ancona?
When it does not snow in Ancona?
What is the water temperature in September in Ancona?
What is the average length of the day in September in Ancona?
When are sunrise and sunset in September in Ancona?
How many hours of sunshine does Ancona have in September?
What is the UV index intensity in September in Ancona?
Average temperature in September
Ancona, Italy
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.9°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Ancona, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Ancona, Italy
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is February (14km/h).
The calmest month (with the lowest average wind speed) is June (10.1km/h).
Average humidity in September
Ancona, Italy
- Average humidity in September: 66%
The month with the highest relative humidity is November (76%).
The months with the lowest relative humidity are July and August (61%).
Average rainfall in September
Ancona, Italy
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is May (71mm).
The driest month (with the least rainfall) is August (20mm).
Average rainfall days in September
Ancona, Italy
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is July (7.8 days).
Average snowfall in September
Ancona, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ancona, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Ancona, Italy
- Average sea temperature in September: 23.9°C
The best month for swimming (with the highest average sea temperature) is August (25.4°C).
The coldest month (with the lowest average sea temperature) is February (12°C).
Average daylight in September /
Average sunshine in September
Ancona, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Ancona, Italy
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in September
Ancona, Italy
- 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
Ancona, Italy
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Ancona, 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).
