Siena weather live forecast

Today's maximum temperature in Siena is expected to be 19°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Thursday
14th May
19

11

5

6
Friday
15th May
14

11

0

3
Saturday
16th May
14

9

5

4
Sunday
17th May
18

7

10

6
Monday
18th May
20

9

4

6

5-day weather forecast updated at 04:01 on Thursday 14th 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 14th May 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 19°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
19
°C wind chill
19
kph wind from W

Siena weather for Friday 15th May 2026

Expect cloudy with some rain in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a light breeze of 9 kph from the south-west.

14
°C maximum temperature
11
°C minimum temperature
cloudy with some rain
0
hours of sunshine
3
UV index (Moderate)
90
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
9
kph wind from SW

Siena weather for Saturday 16th May 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a light breeze of 10 kph from the west.

14
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
4
UV index (Moderate)
74
% chance of some rain
<10
mm of rainfall expected
14
°C wind chill
10
kph wind from W

Siena weather for Sunday 17th May 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 18°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-west.

18
°C maximum temperature
7
°C minimum temperature
broken clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from NW

Siena weather for Monday 18th May 2026

Expect broken clouds in Siena, Tuscany with a maximum temperature of 20°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.