Siena weather live forecast

Today's maximum temperature in Siena is expected to be 22°C. Select a day from the live weather forecast for Siena, Tuscany, Italy for more weather parameters.

Wednesday
20th May
22

13

9

UV7
Thursday
21st May
25

14

11

UV7
Friday
22nd May
26

15

13

UV8
Saturday
23rd May
26

14

12

UV8
Sunday
24th May
28

14

13

UV8

5-day weather forecast updated at 04:01 on Wednesday 20th 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 Wednesday 20th May 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 22°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-west.

22
°C maximum temperature
13
°C minimum temperature
scattered clouds
9
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from NW

Siena weather for Thursday 21st May 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 25°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-east.

25
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
25
°C wind chill
7
kph wind from NE

Siena weather for Friday 22nd May 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.

26
°C maximum temperature
15
°C minimum temperature
clear skies
13
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
10
kph wind from NE

Siena weather for Saturday 23rd May 2026

Expect scattered clouds in Siena, Tuscany with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

26
°C maximum temperature
14
°C minimum temperature
scattered clouds
12
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
11
kph wind from NE

Siena weather for Sunday 24th May 2026

Expect clear skies in Siena, Tuscany with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.