Siena Weather Conditions
Current Temperature Level
21 °C
22 AQI
Air quality index is: Good
Last Updated: 2025-09-04 00:15 (Local Time)
MapSiena
Siena Weather Parameters
9 km/h
5 m/s
12° NNE
0 %
10 km
0 mm
1016 mb
UV Index0
Suggestions for
WednesdaySiena3 Sep.
Umbrella• Not required
Clothing• Layering Must
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Italy
Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025
Siena 10-Days Weather Forecast
Today
21°C
61 %Thursday
22°C65 %Friday
22°C62 %Saturday
22°C60 %Sunday
22°C61 %Monday
22°C66 %Tuesday
24°C68 %Wednesday
24°C72 %Thursday
22°C67 %Friday
22°C67 %Sunny
Clear Sky with temperature at 21 °C and humidity will be at 61% with 17.6 km/h winds.25°C / 17°C
Humi.61 %
Prec.0 mm
Sunrise
06:43 AM13hrs 4min
Sunset
07:47 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
18 °C
64 %
0
9.4 kmph / NE
Clear 
Feels 18.2 °C
Cover 4 %
Visibility 10 km
1 AM
Clear
18 °C
65 %
0
9 kmph / NE
Clear Feels 17.9 °C
Cover 2 %
Visibility 10 km
2 AM
Clear
18 °C
66 %
0
8.3 kmph / NE
Clear Feels 17.7 °C
Cover 4 %
Visibility 10 km
3 AM
Partly Cloudy
18 °C
67 %
0
7.9 kmph / NE
Partly Cloudy Feels 17.5 °C
Cover 27 %
Visibility 10 km
4 AM
Clear
17 °C
71 %
0
8.3 kmph / NE
Clear Feels 17.3 °C
Cover 15 %
Visibility 10 km
5 AM
Clear
17 °C
72 %
0
8.6 kmph / ENE
Clear Feels 17 °C
Cover 10 %
Visibility 10 km
6 AM
Clear
17 °C
74 %
0
9 kmph / NE
Clear Feels 17.1 °C
Cover 4 %
Visibility 10 km
7 AM
Sunny
19 °C
71 %
0
8.6 kmph / NE
SunnyFeels 18.8 °C
Cover 2 %
Visibility 10 km
8 AM
Sunny
21 °C
64 %
0.4
8.6 kmph / NE
SunnyFeels 20.9 °C
Cover 3 %
Visibility 10 km
9 AM
Sunny
23 °C
57 %
1.3
6.8 kmph / NE
SunnyFeels 24.8 °C
Cover 4 %
Visibility 10 km
10 AM
Sunny
24 °C
54 %
2.9
3.2 kmph / NW
SunnyFeels 25.2 °C
Cover 6 %
Visibility 10 km
11 AM
Sunny
24 °C
53 %
4.6
6.5 kmph / WSW
SunnyFeels 25.4 °C
Cover 6 %
Visibility 10 km
12 PM
Sunny
25 °C
52 %
6
11.2 kmph / WSW
SunnyFeels 25.7 °C
Cover 7 %
Visibility 10 km
1 PM
Sunny
25 °C
51 %
7.1
14.4 kmph / WSW
SunnyFeels 26 °C
Cover 9 %
Visibility 10 km
2 PM
Sunny
25 °C
51 %
7
17.6 kmph / WSW
SunnyFeels 26.2 °C
Cover 8 %
Visibility 10 km
3 PM
Sunny
25 °C
52 %
5.7
17.6 kmph / W
SunnyFeels 26.2 °C
Cover 5 %
Visibility 10 km
4 PM
Sunny
25 °C
52 %
3.9
16.9 kmph / W
SunnyFeels 26.1 °C
Cover 5 %
Visibility 10 km
5 PM
Sunny
25 °C
52 %
2.1
15.8 kmph / WNW
SunnyFeels 25.8 °C
Cover 5 %
Visibility 10 km
6 PM
Sunny
23 °C
56 %
0.8
11.2 kmph / WNW
SunnyFeels 25 °C
Cover 5 %
Visibility 10 km
7 PM
Sunny
22 °C
62 %
0.2
9.4 kmph / NW
SunnyFeels 21.6 °C
Cover 5 %
Visibility 10 km
8 PM
Clear
21 °C
64 %
0
9.7 kmph / NNW
Clear Feels 20.9 °C
Cover 6 %
Visibility 10 km
9 PM
Clear
20 °C
66 %
0
9.4 kmph / N
Clear Feels 20.3 °C
Cover 5 %
Visibility 10 km
10 PM
Clear
20 °C
66 %
0
9 kmph / N
Clear Feels 19.9 °C
Cover 5 %
Visibility 10 km
11 PM
Clear
21 °C
83 %
0
9 kmph / N
Clear Feels 19.5 °C
Cover 0 %
Visibility 10 km
Today
21°C61 %Thursday
22°C65 %Friday
22°C62 %Saturday
22°C60 %Sunday
22°C61 %Monday
22°C66 %Tuesday
24°C68 %Wednesday
24°C72 %Thursday
22°C67 %Friday
22°C67 %Temp18 °C
ConditionClear
Humidity64 %
Feels18.2 °C
Cover4 %
Visibility10 km
Wind Speed & Dir.9.4 kmph / NE
UV0
Siena 30-Days (September 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Mon.
27°19 °C
2Tue.
27°19 °C
3Wed.
26°17 °C
4Today
27°17 °C
5Fri.
27°18 °C
6Sat.
27°18 °C
7Sun.
26°18 °C
8Mon.
27°18 °C
9Tue.
28°20 °C
10Wed.
26°20 °C
11Thu.
30°18 °C
12Fri.
26°19 °C
13Sat.
27°20 °C
14Sun.
26°20 °C
15Mon.
29°20 °C
16Tue.
31°19 °C
17Wed.
26°18 °C
18Thu.
25°18 °C
19Fri.
24°17 °C
20Sat.
25°17 °C
21Sun.
25°17 °C
22Mon.
25°17 °C
23Tue.
24°16 °C
24Wed.
24°17 °C
25Thu.
24°16 °C
26Fri.
24°16 °C
27Sat.
24°16 °C
28Sun.
25°16 °C
29Mon.
24°16 °C
30Tue.
24°16 °C
SeptemberWeather Overview
No. of days:
Sunny
11
Cloudy
2
Rainy
17
Snowy
0
The monthly weather averages in Siena consist of 11 sunny days, 2 cloudy days, 17 rainy days, and 0 snowy days.
Siena's Locations Weather Conditions
Italy's Hottest Cities - September 2025
1.
Cagliari, Italy
Clear
74%
0
5.4 kmph / NNE
2.
Ferrara, Italy
Clear
73%
0
4.7 kmph / W
3.
Giugliano In Campania, Italy
Clear
73%
0
3.6 kmph / N
4.
Caserta, Italy
Clear
73%
0
3.6 kmph / N
5.
Naples, Italy
Clear
73%
0
3.6 kmph / W
6.
Genoa, Italy
Clear
78%
0
3.6 kmph / SE
7.
Napoli, Italy
Clear
73%
0
5.4 kmph / WNW
8.
Venice, Italy
Clear
83%
0
5.8 kmph / NNW
9.
Asti, Italy
Partly Cloudy
78%
0
3.6 kmph / SW
10.
Savona, Italy
Clear
73%
0
6.5 kmph / SSW
Last Updated: 03 Sept 2025, 10:11 PM
Recent Blogs On Weather
No Clean Air Day in Delhi 2025: Why Even Monsoon Could Not Help?
Can you imagine living through an entire year without breathing clean air even once? That is exactly what Delhi is…
Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024.
Do you know that more than 2 lakh residents in Delhi reported acute respiratory illness from 2022 and 2024? And…
