Siena
October
Weather in Siena for October 2025
Your guide to Siena weather in October - trends and predictions
In general, the average temperature in Siena at the beginning of October is 23.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.9 °C by the end of October.
The climate of Siena in October is notably wet, with an average of 13 rainy days.
Is October a good time to visit Siena? check out the best time to travel to Siena page.
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18
Dry days
13
Rainy days
0
Snow days
24°/13°
Temperatures
17 km/h
Avg max wind
71 %
Avg humidity
Siena in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 26° | 3 22° | 4  22° | 5 23° | ||
| 6 23° | 7 22° | 8 24° | 9 25° | 10 24° | 11  24° | 12 24° |
| 13 23° | 14 24° | 15  25° | 16  19° | 17 20° | 18  18° | 19 18° |
| 20 23° | 21  20° | 22 21° | 23  19° | 24  20° | 25 19° | 26 19° |
| 27 20° | 28 20° | 29 21° | 30 21° | 31 19° |
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Temperatures trend during October in Siena
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Sunny | 26° /12° | 0.8 mm | 7 | |
| 2 Oct. | Sunny | 26° /14° | 4 mm | 7 | |
| 3 Oct. | Sunny | 22° /13° | 12.3 mm | 6 | |
| 4 Oct. | Partly cloudy | 22° /11° | 1.5 mm | 6 | |
| 5 Oct. | Partly cloudy | 23° /11° | 0.6 mm | 6 | |
| 6 Oct. | Sunny | 23° /10° | 0.1 mm | 6 | |
| 7 Oct. | Sunny | 22° /13° | 0.1 mm | 6 | |
| 8 Oct. | Sunny | 24° /13° | 12.8 mm | 6 | |
| 9 Oct. | Sunny | 25° /13° | 0.6 mm | 6 | |
| 10 Oct. | Sunny | 24° /12° | 2.5 mm | 6 | |
| 11 Oct. | Mist | 24° /12° | 0.1 mm | 6 | |
| 12 Oct. | Sunny | 24° /11° | 0 mm | 7 | |
| 13 Oct. | Sunny | 23° /11° | 0 mm | 6 | |
| 14 Oct. | Sunny | 24° /12° | 0 mm | 6 | |
| 15 Oct. | Patchy rain possible | 25° /12° | 0 mm | 6 | |
| 16 Oct. | Overcast | 19° /12° | 1.1 mm | 4 | |
| 17 Oct. | Patchy rain possible | 20° /12° | 5.4 mm | 5 | |
| 18 Oct. | Light drizzle | 18° /11° | 2.6 mm | 5 | |
| 19 Oct. | Light rain shower | 18° /13° | 8.5 mm | 4 | |
| 20 Oct. | Light rain shower | 23° /13° | 4.9 mm | 5 | |
| 21 Oct. | Patchy light rain with thunder | 20° /13° | 5.9 mm | 5 | |
| 22 Oct. | Patchy rain possible | 21° /13° | 3.6 mm | 5 | |
| 23 Oct. | Cloudy | 19° /12° | 12.1 mm | 5 | |
| 24 Oct. | Moderate or heavy rain shower | 20° /14° | 9.5 mm | 5 | |
| 25 Oct. | Patchy light drizzle | 19° /13° | 11.7 mm | 5 | |
| 26 Oct. | Patchy rain possible | 19° /13° | 5.4 mm | 5 | |
| 27 Oct. | Patchy rain possible | 20° /13° | 3.2 mm | 5 | |
| 28 Oct. | Patchy rain possible | 20° /11° | 0.1 mm | 5 | |
| 29 Oct. | Light rain shower | 21° /11° | 0.3 mm | 5 | |
| 30 Oct. | Patchy rain possible | 21° /12° | 7.2 mm | 6 | |
| 31 Oct. | Moderate rain at times | 19° /10° | 2.4 mm | 5 | |
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Important Notice
Our weather forecast for Siena in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Siena forecast closer to your planned date for the most up-to-date weather information.
Siena in October - FAQ
What are the expected maximum and minimum temperatures in Siena during October?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Siena during October?
Moderate rainfall is anticipated in Siena during October, with a total of 70.1 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Siena during October?
The average wind speed in Siena during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Siena in October?
As you prepare for your trip to Siena in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Siena, during October, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
October rainfall patterns in Siena
Explore the daily rainfall trends and prepare for Sienas October weather 💧
UV exposure in Siena during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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