Measurements:
°C
°F
Terni
108°F
SE 11 mph
Feels like: 108°F
Precip: 1%
World Resorts Italy Terni Weather September Weather in Terni

Terni Weather: September

Average Day Temperature: 83.8°F
Average Night Temperature: 60.8°F
Number of Sunny Days: 17 days
Sunshine Hours: 11.8 - 13.2 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.5 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 93°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 83.6°F и 58.8°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Terni is 1.5 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 4.1 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Terni in September is 8.5 hours.

Best Time to Visit Terni
The most sunny months:
July 26 days
August 22 days
June 21 days
The most warm months:
July 97.3 °F
August 95.0 °F
June 89.5 °F
The most cold months:
January 50.7 °F
December 52.9 °F
February 55.8 °F
The most rainy months:
December 4 days
January 3 days
September 3 days
The most windy months:
July 4 mph
August 4 mph
March 4 mph

Terni on the Weather Map

Italy Resorts:
NAME
Baia Domizia +98
Bari +92
Bibione +92
Florence +108
Genoa +86
Lido di Jesolo +90
Naples +90
Palermo +96
Rimini +88
Rome +100
Sanremo +86
Scalea +92
Sicily +108
Tropea +88
Venice +90
24 Hours Weather Forecast
Terni
Local time: 18:51
16 jul, thursday
2100 84°F
SE
2 mph
17 jul, friday
0000 76°F
SW
4 mph
0300 72°F
W
3 mph
0600 72°F
W
3 mph
0900 94°F
NE
2 mph
1200 106°F
NE
4 mph
1500 112°F
NE
6 mph
1800 108°F
E
12 mph