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Weather in Siena for January 2027

Your guide to Siena weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in Siena at the beginning of January is 9.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 11.3 °C by the end of January.

    • Rain 🌧️

  • Siena experiences moderate rainfall in January, with an average of 9 rainy days and a total precipitation of 79.1 mm.

    • More

  • Is January a good time to visit Siena? check out the best time to travel to Siena page.

  • ✨ Is January a good time to visit Siena? – Ask the AI Weatherman

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/3°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Siena Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
9°
2
Patchy rain possible
11°
3
Patchy rain possible
11°
4
Light rain
10°
5
Patchy rain possible
8°
6
Moderate rain
9°
7
Light drizzle
7°
8
Overcast
7°
9
Light rain shower
10°
10
Patchy rain possible
8°
11
Patchy rain possible
8°
12
Overcast
7°
13
Partly cloudy
7°
14
Patchy rain possible
8°
15
Patchy rain possible
9°
16
Patchy rain possible
10°
17
Light rain shower
11°
18
Patchy rain possible
12°
19
Patchy rain possible
10°
20
Light rain
6°
21
Overcast
8°
22
Partly cloudy
8°
23
Patchy rain possible
10°
24
Light rain
11°
25
Light rain
11°
26
Light rain
12°
27
Sunny
13°
28
Moderate rain
12°
29
Light rain
11°
30
Light rain
10°
31
Patchy rain possible
11°

Temperatures trend during January in Siena

See the weather trend as well as the moving average line

January weather in Siena day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Patchy rain possible
Patchy rain possible
 9° /3° 2.1 mm 1.4
2 Jan. Patchy rain possible
Patchy rain possible
 11° /4° 0.3 mm 1.4
3 Jan. Patchy rain possible
Patchy rain possible
 11° /4° 0.6 mm 1.4
4 Jan. Light rain
Light rain
 10° /4° 4.6 mm 1.4
5 Jan. Patchy rain possible
Patchy rain possible
 8° /4° 1.1 mm 1.4
6 Jan. Moderate rain
Moderate rain
 9° /5° 11.1 mm 1.4
7 Jan. Light drizzle
Light drizzle
 7° /3° 1 mm 1.5
8 Jan. Overcast
Overcast
 7° /0° 0.1 mm 1.5
9 Jan. Light rain shower
Light rain shower
 10° /4° 2 mm 1.5
10 Jan. Patchy rain possible
Patchy rain possible
 8° /2° 1.7 mm 1.5
11 Jan. Patchy rain possible
Patchy rain possible
 8° /1° 1.1 mm 1
12 Jan. Overcast
Overcast
 7° /1° 0 mm 1.5
13 Jan. Partly cloudy
Partly cloudy
 7° /1° 0 mm 1
14 Jan. Patchy rain possible
Patchy rain possible
 8° /2° 0.1 mm 1.6
15 Jan. Patchy rain possible
Patchy rain possible
 9° /3° 0.3 mm 1.6
16 Jan. Patchy rain possible
Patchy rain possible
 10° /4° 0.4 mm 1.6
17 Jan. Light rain shower
Light rain shower
 11° /3° 1.9 mm 1.7
18 Jan. Patchy rain possible
Patchy rain possible
 12° /4° 1.1 mm 1.7
19 Jan. Patchy rain possible
Patchy rain possible
 10° /3° 0.2 mm 1.7
20 Jan. Light rain
Light rain
 6° /1° 4.4 mm 1.8
21 Jan. Overcast
Overcast
 8° /1° 0 mm 1
22 Jan. Partly cloudy
Partly cloudy
 8° /1° 0.6 mm 1.8
23 Jan. Patchy rain possible
Patchy rain possible
 10° /4° 2.2 mm 1.8
24 Jan. Light rain
Light rain
 11° /4° 5.9 mm 1.9
25 Jan. Light rain
Light rain
 11° /5° 6.3 mm 1.9
26 Jan. Light rain
Light rain
 12° /3° 3 mm 2
27 Jan. Sunny
Sunny
 13° /4° 0.5 mm 2
28 Jan. Moderate rain
Moderate rain
 12° /5° 19.1 mm 2
29 Jan. Light rain
Light rain
 11° /3° 3.6 mm 2
30 Jan. Light rain
Light rain
 10° /3° 2.7 mm 2
31 Jan. Patchy rain possible
Patchy rain possible
 11° /3° 1.1 mm 2
Next
Important Notice
Our weather forecast for Siena in January 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.
Change Month
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Siena weather in January vs December vs February

Compare January weather in Siena with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
DecemberJanuaryFebruary
WeatherSunny
Sunny
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures10°/4°10°/3°12°/5°
Rainfall58 mm79 mm88 mm
Wind10 km/h14 km/h12.6 km/h
Humidity80%81%80%
Rainy days8 days9 days10 days
Dry days23 days22 days18 days

Planning a trip to Siena? Discover the best time to visit

Siena in January - FAQ

What are the expected maximum and minimum temperatures in Siena during January?
Prepare for cooler days with highs just around 10° and colder nights, dipping below 3°.

How much rainfall should be expected in Siena during January?
Moderate rainfall is anticipated in Siena during January, with a total of 79.1 mm spread over approximately 9 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Siena during January?
The average wind speed in Siena during January is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Siena

Explore the daily rainfall trends and prepare for Sienas January weather 💧
Typically, Siena has 9 rainy days in January with a total of 79.1 mm of rainfall.

What to pack to Siena in January?

🌦️ Cold & raw · highs around 10 °C, frequent showers

As you prepare for your trip to Siena in January, 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 January, is comfortable and enjoyable, regardless of the weather conditions.

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🧥 Clothing

👟 Footwear

🎒 Accessories

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Get accurate weather forecasts for Siena, located at latitude 43.318 and longitude 11.331. Stay updated with localized weather information tailored for Siena.

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