Siena weather live forecast

Today's maximum temperature in Siena is expected to be 37°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Sunday
28th Jun
37

24

14

9
Monday
29th Jun
36

25

13

8
Tuesday
30th Jun
36

25

11

8
Wednesday
1st Jul
34

24

11

9
Thursday
2nd Jul
29

22

11

8

5-day weather forecast updated at 04:01 on Sunday 28th June 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 Sunday 28th June 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-west.

37
°C maximum temperature
24
°C minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
11
kph wind from NW

Siena weather for Monday 29th June 2026

Expect isolated thunderstorms 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 0-2 mm of rainfall expected with 27% chance of some rain and a light breeze of 11 kph from the north-west.

36
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
13
hours of sunshine
8
UV index (Very High)
27
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
11
kph wind from NW

Siena weather for Tuesday 30th June 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 36°C, high 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 43% chance of some rain and little or no wind of 5 kph from the north-west.

36
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
8
UV index (Very High)
43
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
5
kph wind from NW

Siena weather for Wednesday 1st July 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a light breeze of 10 kph from the north-west.

34
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
9
UV index (Very High)
40
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
10
kph wind from NW

Siena weather for Thursday 2nd July 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 29°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 49% chance of some rain and a gentle breeze of 14 kph from the north-east.