Siena weather live forecast

Today's maximum temperature in Siena is expected to be 13°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Saturday
20th Dec
13

8

2

1
Sunday
21st Dec
12

7

1

1
Monday
22nd Dec
12

9

0

1
Tuesday
23rd Dec
12

9

0

0
Wednesday
24th Dec
11

7

0

1

5-day weather forecast updated at 04:02 on Friday 19th 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 Saturday 20th December 2025

Expect fog in low lying areas in Siena, Tuscany with a maximum temperature of 13°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.

13
°C maximum temperature
8
°C minimum temperature
fog in low lying areas
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
13
°C wind chill
4
kph wind from E

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 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the east.

12
°C maximum temperature
7
°C minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
4
kph wind from E

Siena weather for Monday 22nd December 2025

Expect mostly cloudy with rain in Siena, Tuscany with a maximum temperature of 12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 61% chance of some rain and a light breeze of 7 kph from the east.

12
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
61
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
7
kph wind from E

Siena weather for Tuesday 23rd December 2025

Expect overcast with light rain in Siena, Tuscany with a maximum temperature of 12°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and little or no wind of 6 kph from the north-east.

12
°C maximum temperature
9
°C minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
54
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
6
kph wind from NE

Siena weather for Wednesday 24th December 2025

Expect mostly cloudy with light rain in Siena, Tuscany with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a light breeze of 7 kph from the north-east.