Siena weather live forecast

Today's maximum temperature in Siena is expected to be 21°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Thursday
7th May
21

15

2

5
Friday
8th May
20

15

5

6
Saturday
9th May
24

13

12

7
Sunday
10th May
21

15

3

4
Monday
11th May
22

16

6

5

5-day weather forecast updated at 04:01 on Wednesday 6th May 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 Thursday 7th May 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and little or no wind of 4 kph from the south.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
5
UV index (Moderate)
35
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
4
kph wind from S

Siena weather for Friday 8th May 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 20°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-east.

20
°C maximum temperature
15
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
6
kph wind from NE

Siena weather for Saturday 9th May 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 24°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the east.

24
°C maximum temperature
13
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from E

Siena weather for Sunday 10th May 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a light breeze of 8 kph from the south-west.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
4
UV index (Moderate)
67
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
8
kph wind from SW

Siena weather for Monday 11th May 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a light breeze of 12 kph from the south.