Live Weather & Forecast

Weather in Siena

Italy · Real-time conditions & 3-day outlook

Flag of Italy
Sunny
15°C
Feels like 15°C
60°F / Feels 60°F
Sunny
Siena, Italy
🌞 Daytime
Updated: 2026-04-12 09:45
💧
Humidity
80%
💨
Wind
5.4 km/h ESE
🌬️
Wind Gust
6.2 km/h
🌡️
Pressure
1013 mb
👁️
Visibility
10 km
☀️
UV Index
1.1 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
19%
💦
Dew Point
11.8°C
🌐
Wind Degree
105°

Air Quality Index

US EPA: Moderate UK DEFRA: Low (2)
CO
163.9 μg/m³
NO₂
5.3 μg/m³
O₃
48 μg/m³
SO₂
1.1 μg/m³
PM 2.5
16.7 μg/m³
PM 10
21.2 μg/m³

Weather Alerts 2

Met · Moderate · Future
Yellow Wind Warning for Italy - Toscana

Moderate intensity weather phenomena expected (DISCLAIMER: "Information provided on METEOALARM for Italy regard only the intensity and recurrence of the phenomena, further details can be found at www.meteoam.it. METEOALARM information do not provide the assessment of impact on the territory and they do not represent the Official Alerts messages that are issued by the National Civil Protection Ser...

BE AWARE, keep up to date with the latest weather forecast. Expect some minor disruption to outdoor activities

Effective: 2026-04-13T08:00:00+02:00  ·  Expires: 2026-04-13T19:59:00+02:00
Met · Moderate · Future
Yellow Thunderstorm Warning for Italy - Toscana

Moderate intensity weather phenomena expected (DISCLAIMER: "Information provided on METEOALARM for Italy regard only the intensity and recurrence of the phenomena, further details can be found at www.meteoam.it. METEOALARM information do not provide the assessment of impact on the territory and they do not represent the Official Alerts messages that are issued by the National Civil Protection Ser...

BE AWARE, keep up to date with the latest weather forecast. Expect some minor disruption to outdoor activities

Effective: 2026-04-13T08:00:00+02:00  ·  Expires: 2026-04-13T23:59:00+02:00

Today's Hourly Forecast

24-hour breakdown for Siena, Italy

12 AM
Clear
11°
Clear
💧 88% 💨 1.1 km/h
1 AM
Clear
11°
Clear
💧 89% 💨 0.4 km/h
2 AM
Clear
10°
Clear
💧 89% 💨 1.8 km/h
3 AM
Clear
10°
Clear
💧 91% 💨 4.7 km/h
4 AM
Clear
10°
Clear
💧 92% 💨 3.2 km/h
5 AM
Clear
10°
Clear
💧 93% 💨 3.6 km/h
6 AM
Clear
9°
Clear
💧 94% 💨 2.9 km/h
7 AM
Mist
10°
Mist
💧 94% 💨 4.7 km/h
8 AM
Sunny
13°
Sunny
💧 89% 💨 4.3 km/h
9 AM
Sunny
15°
Sunny
💧 80% 💨 5.4 km/h
10 AM
Sunny
18°
Sunny
💧 71% 💨 6.5 km/h
11 AM
Sunny
19°
Sunny
💧 64% 💨 7.9 km/h
12 PM
Sunny
21°
Sunny
💧 56% 💨 7.6 km/h
1 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 50% 💨 7.6 km/h 🌧️ 78%
2 PM
Patchy rain nearby
23°
Patchy rain nearby
💧 47% 💨 7.9 km/h 🌧️ 80%
3 PM
Partly Cloudy
23°
Partly Cloudy
💧 46% 💨 7.6 km/h
4 PM
Partly Cloudy
23°
Partly Cloudy
💧 47% 💨 7.9 km/h
5 PM
Sunny
22°
Sunny
💧 51% 💨 6.8 km/h
6 PM
Patchy rain nearby
21°
Patchy rain nearby
💧 57% 💨 3.6 km/h 🌧️ 87%
7 PM
Patchy rain nearby
18°
Patchy rain nearby
💧 68% 💨 2.9 km/h 🌧️ 100%
8 PM
Patchy rain nearby
15°
Patchy rain nearby
💧 78% 💨 1.4 km/h 🌧️ 100%
9 PM
Patchy rain nearby
14°
Patchy rain nearby
💧 84% 💨 3.2 km/h 🌧️ 100%
10 PM
Light rain shower
14°
Light rain shower
💧 87% 💨 4.3 km/h 🌧️ 100%
11 PM
Light rain shower
13°
Light rain shower
💧 89% 💨 6.1 km/h 🌧️ 100%

3-Day Forecast

Daily overview for Siena, Italy

Today
Patchy rain nearby
Patchy rain nearby
23° / 9°
🌧️ 87% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 7.9 km/h
🌧️ Total precip: 1.59 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:37 AM
🌇 Sunset: 07:54 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Moderate rain
Moderate rain
18° / 11°
🌧️ 88% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 13.7 km/h
🌧️ Total precip: 13.46 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:55 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Moderate rain
Moderate rain
18° / 12°
🌧️ 87% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 9.95 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:56 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Siena

Plan your trip around the most favorable weather conditions in Siena, Italy.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Siena 🗓 View Holidays 2026

Frequently Asked Questions

People also ask — answers optimized for search engines and voice queries.

What is the current weather in Siena?
Current conditions in Siena: Sunny, temperature 15°C, humidity 80%.
What is the best time to visit Siena?
The best time to visit Siena is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Siena?
Siena shares the climate of Italy. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Siena?
Rainfall patterns in Siena vary by season. Peak rainfall typically occurs outside of the dry season.
What should I pack for Siena?
For visits during June – September: light clothing and sun protection. For the November – March period: layers and a waterproof jacket are recommended for Siena.
What country is Siena in?
Siena is a state/province of Italy.
What are the public holidays in Siena in 2026?
View the full list of 2026 public holidays for Siena on our Holidays page.
What are the coordinates for the weather forecast in Siena?
The weather forecast for Siena is based on coordinates 43.39, 11.2236.