Siena weather live forecast

Today's maximum temperature in Siena is expected to be 21°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Tuesday
20th Oct
21

13

3

3
Wednesday
21st Oct
18

15

2

2
Thursday
22nd Oct
18

11

8

3
Friday
23rd Oct
19

8

7

3
Saturday
24th Oct
17

12

5

2

5-day weather forecast updated at 04:01 on Tuesday 20th October 2026 GMT

More about Siena

Siena by month

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

Recommended for Siena

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 Tuesday 20th October 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 14 kph from the south-east.

21
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
3
UV index (Moderate)
63
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

Siena weather for Wednesday 21st October 2026

Expect isolated thunderstorms in Siena, Tuscany with a maximum temperature of 18°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 13 kph from the south-west.

18
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
2
UV index (Low)
82
% chance of some rain
<30
mm of rainfall expected
18
°C wind chill
13
kph wind from SW

Siena weather for Thursday 22nd October 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

18
°C maximum temperature
11
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from NW

Siena weather for Friday 23rd October 2026

Expect sunshine and showers in Siena, Tuscany with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 20% chance of some rain and a light breeze of 9 kph from the south-west.

19
°C maximum temperature
8
°C minimum temperature
sunshine and showers
7
hours of sunshine
3
UV index (Moderate)
20
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
9
kph wind from SW

Siena weather for Saturday 24th October 2026

Expect sunshine and showers in Siena, Tuscany with a maximum temperature of 17°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a light breeze of 11 kph from the north-west.