September weather forecastPisa, Italy

September
Weather in September
As the summer heat begins to wane, September maintains a warm and inviting atmosphere in Pisa. The month sees a gradual decline in temperature and a corresponding increase in rainfall which totals 49mm (1.93"). However, it continues to offer favorable light conditions, with daylight exposure and sunshine durations measuring in at 12.5 and 10.4 hours respectively. Despite the occasional showers, visibility remains high, and outdoor activities continue to be a prominent attraction. The blend of warm weather and increased precipitation makes September a defining bridging month between summer and autumn in Pisa.Temperature
Pisa observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 28.5°C (83.3°F) to a still moderately hot 24.2°C (75.6°F). Throughout September, Pisa registers a consistent average low-temperature of 16.2°C (61.2°F).Humidity
In Pisa, the average relative humidity in September is 71%.Rainfall
In Pisa, during September, the rain falls for 12.2 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Pisa, there are 152 rainfall days, and 666mm (26.22") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Pisa.Daylight
In September, the average length of the day in Pisa is 12h and 30min.On the first day of September, sunrise is at 06:42 and sunset at 19:53. On the last day of the month, sunrise is at 07:15 and sunset at 19:01 CEST.
Sunshine
In September, the average sunshine in Pisa is 10.4h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. It's recommended to limit sun exposure when its radiation is at its peak during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pisa, Italy
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (9.5°C).
- Average low temperature in September: 16.2°C
The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).
Average pressure in September
Pisa, Italy
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Pisa, Italy
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is February (12.2km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Pisa, Italy
- Average humidity in September: 71%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Pisa, Italy
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is November (126mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in September
Pisa, Italy
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is November (16.2 days).
The month with the least rainy days is August (8.8 days).
Average snowfall in September
Pisa, Italy
- Average snowfall in September: 0mm
The months with the highest snowfall are January, March and December (2mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Pisa, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 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
Pisa, Italy
- Average daylight in September: 12h and 30min
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 24min
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 24min).
Average sunshine days in September
Pisa, Italy
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is November (11.8 days).
Average UV index in September
Pisa, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Pisa, Italy
- Average cloud cover in September: 21
The months with the most cloud cover are January and February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Pisa, Italy
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).





