Siena weather live forecast

Today's maximum temperature in Siena is expected to be 36°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Wednesday
15th Jul
36

23

13

8
Thursday
16th Jul
37

24

13

8
Friday
17th Jul
37

25

14

8
Saturday
18th Jul
34

24

12

9
Sunday
19th Jul
32

23

11

8

5-day weather forecast updated at 04:01 on Tuesday 14th July 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 15th July 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

36
°C maximum temperature
23
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
13
kph wind from W

Siena weather for Thursday 16th July 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

37
°C maximum temperature
24
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
12
kph wind from NW

Siena weather for Friday 17th July 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

37
°C maximum temperature
25
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
16
kph wind from SW

Siena weather for Saturday 18th July 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

34
°C maximum temperature
24
°C minimum temperature
scattered clouds
12
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
20
kph wind from W

Siena weather for Sunday 19th July 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 15 kph from the west.