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
Weather in September
Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from 28.8°C (83.8°F) in August to a still moderately hot 24.3°C (75.7°F). In the month of September, Numana witnesses a consistent average low-temperature of 18.5°C (65.3°F).Humidity
In Numana, the average relative humidity in September is 66%.Rainfall
In September, the rain falls for 10.4 days. Throughout September, 37mm (1.46") of precipitation is accumulated. Throughout the year, in Numana, there are 148 rainfall days, and 504mm (19.84") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Numana.Sea temperature
In September, the average sea temperature in Numana is 23.9°C (75°F).Note: For someone sensitive to cold, swimming in 23.9°C (75°F) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 25°C (77°F) and 28°C (82.4°F).)
Daylight
The average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 06:29 and sunset at 19:40. On the last day of the month, sunrise is at 07:02 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine in Numana is 10.7h.UV index
In Numana, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Make use of precautions - It is urged to ward off sun damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Frequently asked questions
What is the usual temperature for Numana in September?
What is the average humidity in September in Numana?
How many days does it rain in September in Numana?
When it does not snow in Numana?
What is the water temperature in September in Numana?
What is the average length of the day in September in Numana?
When are sunrise and sunset in September in Numana?
How long on average sun shines in September in Numana?
How high is the UV index in September in Numana?
Average temperature in September
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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
Numana, 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).
Numana, Italy
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