Siena in january: average Weather, Temperature and Climate
Weather in Siena in january 2026
The weather in Siena in january comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout january
very bad weather 30.6cm
Weather at 6am
38°F
Clear/Sunny
32% of time
21%
21%
9%
Weather at 12pm
49°F
Clear/Sunny
38% of time
23%
19%
12%
Weather at 6pm
41°F
Clear/Sunny
33% of time
23%
14%
12%
Weather at 3am
38°F
31%
20%
19%
13%
Evolution of daily average temperature and precipitation in Siena in january
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Siena in january.
The climate of Siena in january is very bad
In january in Siena, the climate is wet (with 3.1in of precipitation over 5 days). It should be noted an improvement from the previous month since in december it receives an average of 3.1in of rainfall over 5 days.
The climate is quite cold in that area the month of january. Plan a sweater! The high seasonal norm is 49°F. The seasonal minimum is 38°F. Thus, the mean temperature average in january in Siena is 43°F. These temperatures are far removed from those records observed in Siena in the month of january with a maximum record of 61°F in 2013 and a minimum record of 23°F in 2011.
In january in Siena, the days on average last 09:21. Sunrise is at 07:44 and sets at 17:05.
January: another location in Italy?
If you want to go to Italy in january, there are destinations with better weather than Siena:
In january, Rome, Sicily, Bari, Lecce, Naples and Amalfi have a tolerable climate, but better than Siena.
Seasonal average climate and temperature of Siena in january
Check below seasonal norms These datas are set from the weather statements of the past years of january.
| January | |||||
| Outside temperature | |||||
| Average temperature | 43°F | ||||
| Highest temperature | 49°F | ||||
| Lowest temperature | 38°F | ||||
| Highest record temperature | 61°F (2013) | ||||
| Lowest record temperature | 23°F (2011) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 9 day(s) (29%) | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 34°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.1in | ||||
| Number of days with rainfall | 5 day(s) (17%) | ||||
| Record daily rainfall | 1.5in (2010) | ||||
| Snowfall | 30.6cm | ||||
| Other climate data | |||||
| Humidity | 89% | ||||
| Visibility | 8.28km | ||||
| Cloud cover | 45% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 7 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:44 | ||||
| Time of sunset | 17:05 | ||||
| Length of day | 09:21 | ||||
| Our opinion about the weather in january | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last january?
Here is the day by day recorded weather in Siena in january 2025:
38°F to 52°F
43°F to 52°F
49°F to 54°F
34°F to 47°F
41°F to 49°F
50°F to 56°F
49°F to 56°F
43°F to 54°F
52°F to 58°F
45°F to 56°F
45°F to 50°F
38°F to 45°F
36°F to 41°F
32°F to 43°F
29°F to 43°F
34°F to 45°F
32°F to 47°F
34°F to 47°F
34°F to 50°F
40°F to 43°F
43°F to 49°F
41°F to 49°F
49°F to 58°F
47°F to 54°F
43°F to 58°F
43°F to 56°F
50°F to 58°F
54°F to 56°F
41°F to 52°F
41°F to 54°F
43°F to 54°F
Map: other cities in Italy in january
Cities near Siena:
| San Gimignano in january | very bad weather |
| Chianciano Terme in january | very bad weather |
| Tuscany in january | very bad weather |
| Florence in january | very bad weather |
| Sarteano in january | very bad weather |
| Follonica in january | bad weather |
| Grosseto in january | bad weather |
| Piombino in january | bad weather |
| Pitigliano in january | very bad weather |
| Livorno in january | bad weather |
| Calamecca in january | very bad weather |
| Pisa in january | bad weather |
Click over cities on the map for information about the weather in january.
Siena
perfect weather
good
tolerable
bad
very bad
Weather data for Siena in january:
Weather data for Siena for january are derived from an average of the weather forecast since 2009 in Siena. There is a margin of error and these forecasts are to be considered as general information only. The weather in Siena can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Siena.