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

10

5

6
Friday
15th May
15

11

1

5
Saturday
16th May
14

10

2

4
Sunday
17th May
18

8

5

6
Monday
18th May
19

10

6

6

5-day weather forecast updated at 04:01 on Wednesday 13th May 2026 GMT

More about Siena

Siena by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Tuscany

Pierre & Vacances: Latest special offers on holidays

Sale

Save on 2026 holidays with latest Pierre & Vacances deals
Offers on beach, mountain, countryside & ski destinations
Book breaks to France, across Europe & beyond

Go to Pierre & Vacances deal >>

View all Pierre & Vacances offers

Holiday accomodation

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 17 kph from the south-west.

19
°C maximum temperature
10
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
19
°C wind chill
17
kph wind from SW

Siena weather for Friday 15th May 2026

Expect mostly cloudy with rain in Siena, Tuscany with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and a light breeze of 10 kph from the south-west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
5
UV index (Moderate)
80
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
10
kph wind from SW

Siena weather for Saturday 16th May 2026

Expect mostly cloudy with rain in Siena, Tuscany with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 82% chance of some rain and a light breeze of 11 kph from the west.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
4
UV index (Moderate)
82
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
11
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 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

18
°C maximum temperature
8
°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 NW

Siena weather for Monday 18th May 2026

Expect mostly cloudy with light rain in Siena, Tuscany with a maximum temperature of 19°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a light breeze of 7 kph from the north-west.