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United States weather

Weather in Santa Rosa, California for January 2027

Your guide to Santa Rosa weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in Santa Rosa at the beginning of January is 12.8 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 14 °C by the end of January.

    • Rain 🌧️

  • Santa Rosa experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 154 mm.

    • More

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

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

Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/5°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Santa Rosa Weather January

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

Temperatures trend during January in Santa Rosa

See the weather trend as well as the moving average line

January weather in Santa Rosa day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
Jan. 1 Moderate rain
Moderate rain
 13° /6° 15.8 mm 2.1
Jan. 2 Light rain
Light rain
 13° /8° 9.6 mm 2
Jan. 3 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 12° /8° 40.1 mm 2
Jan. 4 Moderate rain
Moderate rain
 12° /6° 15.6 mm 2.1
Jan. 5 Mist
Mist
 14° /5° 0 mm 2
Jan. 6 Light rain shower
Light rain shower
 13° /7° 2.1 mm 2
Jan. 7 Sunny
Sunny
 13° /5° 0 mm 2.2
Jan. 8 Overcast
Overcast
 14° /4° 0 mm 2.2
Jan. 9 Light drizzle
Light drizzle
 14° /3° 0.2 mm 2.2
Jan. 10 Light rain shower
Light rain shower
 13° /3° 0.5 mm 2.3
Jan. 11 Partly cloudy
Partly cloudy
 15° /3° 0 mm 2.3
Jan. 12 Partly cloudy
Partly cloudy
 12° /3° 0 mm 2.3
Jan. 13 Moderate rain
Moderate rain
 15° /3° 9.6 mm 2.3
Jan. 14 Patchy rain possible
Patchy rain possible
 15° /5° 0.1 mm 2.4
Jan. 15 Partly cloudy
Partly cloudy
 17° /4° 0 mm 2.4
Jan. 16 Light rain
Light rain
 15° /6° 3.2 mm 2.4
Jan. 17 Mist
Mist
 13° /4° 0 mm 2
Jan. 18 Partly cloudy
Partly cloudy
 14° /5° 0 mm 2
Jan. 19 Light rain
Light rain
 13° /5° 4.9 mm 2
Jan. 20 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 15° /5° 17.7 mm 2
Jan. 21 Light drizzle
Light drizzle
 14° /6° 0.6 mm 2.6
Jan. 22 Light rain
Light rain
 14° /6° 7.3 mm 2.6
Jan. 23 Mist
Mist
 14° /6° 0 mm 2.7
Jan. 24 Patchy rain possible
Patchy rain possible
 14° /4° 1.8 mm 2.7
Jan. 25 Mist
Mist
 13° /4° 0 mm 2.7
Jan. 26 Patchy rain possible
Patchy rain possible
 14° /6° 0 mm 2.8
Jan. 27 Patchy rain possible
Patchy rain possible
 14° /6° 0 mm 2.8
Jan. 28 Patchy rain possible
Patchy rain possible
 16° /7° 1.3 mm 2.9
Jan. 29 Mist
Mist
 13° /5° 0 mm 2.9
Jan. 30 Mist
Mist
 14° /7° 0 mm 2
Jan. 31 Moderate rain
Moderate rain
 13° /8° 23.4 mm 2
Next
Important Notice
Our weather forecast for Santa Rosa 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 Santa Rosa forecast closer to your planned date for the most up-to-date weather information.
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Santa Rosa in January - FAQ

What are the expected maximum and minimum temperatures in Santa Rosa during January?
During January, expect a variety of temperatures with highs around 14° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Santa Rosa during January?
Significant rainfall exceeding 154 mm is expected in Santa Rosa during January, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Santa Rosa during January?
The average wind speed in Santa Rosa during January is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Santa Rosa

Explore the daily rainfall trends and prepare for Santa Rosas January weather 💧
Typically, Santa Rosa has 6 rainy days in January with a total of 154 mm of rainfall.
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Location coordinates Where is Santa Rosa?

Get accurate weather forecasts for Santa Rosa, located at latitude 38.44 and longitude -122.714. Stay updated with localized weather information tailored for Santa Rosa.

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