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
Weather in September
Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's warm 28.9°C (84°F) to a still moderately hot 24.1°C (75.4°F). Serravalle's temperature in September lowers to a consistent average of 17.6°C (63.7°F) during the nights.Humidity
In Serravalle, the average relative humidity in September is 67%.Rainfall
In Serravalle, during September, the rain falls for 11.5 days and regularly aggregates up to 46mm (1.81") of precipitation. In Serravalle, during the entire year, the rain falls for 139.3 days and collects up to 509mm (20.04") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in Serravalle is 12h and 31min.On the first day of the month, sunrise is at 06:33 and sunset at 19:45. On the last day of September, sunrise is at 07:07 and sunset at 18:52 CEST.
Sunshine
In September, the average sunshine is 10.3h.UV index
In Serravalle, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the average September temperature in Serravalle?
What is the average humidity in September in Serravalle?
How many days does it rain in September in Serravalle?
When it does not snow in Serravalle?
What is the average length of the day in September in Serravalle?
When are sunrise and sunset in September in Serravalle?
How many hours of sunshine does Serravalle have in September?
How high is the UV index in September in Serravalle?
Average temperature in September
Serravalle, San Marino
- Average high temperature in September: 24.1°C
The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in September: 17.6°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in September
Serravalle, San Marino
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Serravalle, San Marino
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is February (13.8km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Serravalle, San Marino
- Average humidity in September: 67%
The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Serravalle, San Marino
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is August (30mm).
Average rainfall days in September
Serravalle, San Marino
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is August (9.3 days).
Average snowfall in September
Serravalle, San Marino
- Average snowfall in September: 0mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Serravalle, San Marino
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Serravalle, San Marino
- 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 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Serravalle, San Marino
- Average sunshine days in September: 16 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
Serravalle, San Marino
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Serravalle, San Marino
- Average cloud cover in September: 22
The months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Serravalle, San Marino
- 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).
Serravalle, San Marino
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