Siena weather live forecast

Today's maximum temperature in Siena is expected to be 14°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Wednesday
17th Dec
14

10

2

0
Thursday
18th Dec
14

11

2

1
Friday
19th Dec
14

10

3

1
Saturday
20th Dec
14

9

4

1
Sunday
21st Dec
12

7

2

1

5-day weather forecast updated at 04:02 on Wednesday 17th December 2025 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 17th December 2025

Expect mostly cloudy with light rain in Siena, Tuscany with a maximum temperature of 14°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and little or no wind of 4 kph from the east.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
32
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
4
kph wind from E

Siena weather for Thursday 18th December 2025

Expect fog in low lying areas in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the east.

14
°C maximum temperature
11
°C minimum temperature
fog in low lying areas
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from E

Siena weather for Friday 19th December 2025

Expect mostly cloudy with light rain in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and little or no wind of 3 kph from the east.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
25
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
3
kph wind from E

Siena weather for Saturday 20th December 2025

Expect mostly cloudy with light rain in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 1% chance of some rain and little or no wind of 3 kph from the north-east.

14
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
1
UV index (Low)
1
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
3
kph wind from NE

Siena weather for Sunday 21st December 2025

Expect broken clouds in Siena, Tuscany with a maximum temperature of 12°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north-east.