Siena weather live forecast

Today's maximum temperature in Siena is expected to be 31°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Wednesday
26th Aug
31

20

8

7
Thursday
27th Aug
34

22

7

6
Friday
28th Aug
35

24

9

6
Saturday
29th Aug
32

21

9

6
Sunday
30th Aug
33

19

13

7

5-day weather forecast updated at 04:02 on Wednesday 26th August 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 26th August 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the west.

31
°C maximum temperature
20
°C minimum temperature
scattered clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
6
kph wind from W

Siena weather for Thursday 27th August 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

34
°C maximum temperature
22
°C minimum temperature
scattered clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
12
kph wind from SW

Siena weather for Friday 28th August 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

35
°C maximum temperature
24
°C minimum temperature
scattered clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
14
kph wind from W

Siena weather for Saturday 29th August 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

32
°C maximum temperature
21
°C minimum temperature
broken clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from W

Siena weather for Sunday 30th August 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.