Siena weather live forecast

Today's maximum temperature in Siena is expected to be 24°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Wednesday
23rd Sep
24

16

12

5
Thursday
24th Sep
26

15

2

5
Friday
25th Sep
25

15

11

5
Saturday
26th Sep
25

13

10

5
Sunday
27th Sep
27

14

11

5

5-day weather forecast updated at 04:01 on Wednesday 23rd September 2026 GMT

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The 5-day weather forecast for Tuscany (Siena) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Siena weather forecast by day

Below are the detailed weather forecasts for Siena for the next 5 days.

Siena weather for Wednesday 23rd September 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the east.

24
°C maximum temperature
16
°C minimum temperature
clear skies
12
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
9
kph wind from E

Siena weather for Thursday 24th September 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

26
°C maximum temperature
15
°C minimum temperature
broken clouds
2
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
26
°C wind chill
15
kph wind from W

Siena weather for Friday 25th September 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

25
°C maximum temperature
15
°C minimum temperature
clear skies
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
15
kph wind from E

Siena weather for Saturday 26th September 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-east.

25
°C maximum temperature
13
°C minimum temperature
clear skies
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from NE

Siena weather for Sunday 27th September 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-east.