Siena weather live forecast

Today's maximum temperature in Siena is expected to be 54°F. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Monday
15th Dec
54

41

1

1
Tuesday
16th Dec
55

48

0

1
Wednesday
17th Dec
57

52

1

0
Thursday
18th Dec
59

50

3

1
Friday
19th Dec
59

46

1

1

5-day weather forecast updated at 04:02 on Monday 15th 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 Monday 15th December 2025

Expect fog in low lying areas in Siena, Tuscany with a maximum temperature of 54°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 mph from the east.

54
°F maximum temperature
41
°F minimum temperature
fog in low lying areas
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
54
°F wind chill
2
mph wind from E

Siena weather for Tuesday 16th December 2025

Expect overcast with light rain in Siena, Tuscany with a maximum temperature of 55°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and little or no wind of 4 mph from the east.

55
°F maximum temperature
48
°F minimum temperature
overcast with light rain
0
hours of sunshine
1
UV index (Low)
68
% chance of some rain
<5
mm of rainfall expected
55
°F wind chill
4
mph wind from E

Siena weather for Wednesday 17th December 2025

Expect mostly cloudy with rain in Siena, Tuscany with a maximum temperature of 57°F and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 56% chance of some rain and little or no wind of 3 mph from the east.

57
°F maximum temperature
52
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
56
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
3
mph wind from E

Siena weather for Thursday 18th December 2025

Expect fog in low lying areas in Siena, Tuscany with a maximum temperature of 59°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 mph from the east.

59
°F maximum temperature
50
°F minimum temperature
fog in low lying areas
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
2
mph wind from E

Siena weather for Friday 19th December 2025

Expect fog in low lying areas in Siena, Tuscany with a maximum temperature of 59°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 mph from the east.