Mid-winter · Weather & things to do
Napa in January
Little changes in Napa from December: highs stay near 54°F (12°C), lows near 37°F (3°C), and about 4.7 in (120 mm) of rain falls.
Its comfort score of 65/100 is still Good, though it ranks 11th of 12 here.
- Avg high
- 54°F (12°C)
- Avg low
- 37°F (3°C)
- Rain
- 4.7 in (120 mm)
- Humidity
- 84%
- Cloud cover
- 55%
- Daylight
- ~9 h 36 min
- Comfort score
- 65/100 · Good
What January feels like
It's cool, with highs near 54°F (12°C), so a proper jacket stays on most of the day.
Lows average 37°F (3°C).
Expect regular rain: about 4.7 in (120 mm) falls in the month.
Plan around January
January is one of the lower-scoring months here; the best are April – June and September – November.
- Inside the wettest three-month stretch, December – February.
- Comfort improves from 59/100 in December to 65/100.
- Our California Wine Country route recommends Apr – Oct, so January falls outside its suggested window.
What to pack for January
- Insulated jackethighs only 54°F
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Napa in January
With 4.7 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Stag's Leap Wine Cellars
Home of the Cabernet that won the 1976 Judgment of Paris.
Why now A sit-down stop to wait out showers in a month with 4.7 in of rain.
Bouchon Bakery
Thomas Keller's Yountville bakery for croissants and coffee.
Why now Easy to slot in when January's rain moves in.
Mustards Grill
Highway 29 roadhouse serving wine-country comfort food since 1983.
Why now Keeps part of the day dry on wetter January days.
Napa Valley Wine Train
Restored vintage railcars serving multi-course meals on a 36-mile round trip.
Schramsberg Vineyards
Guided tour of hand-dug caves at a historic sparkling wine estate.
Nearby in January
- Sonoma in January~18 mi · highs 57°F, 4.7 in rain · 2°C (3°F) warmer by day, about as wet
- Healdsburg in January~33 mi · highs 56°F, 6.5 in rain · 1°C (2°F) warmer by day, wetter
- Old Sacramento Waterfront in January~42 mi · highs 58°F, 3.6 in rain · 2°C (4°F) warmer by day, drier
- San Francisco in January~51 mi · highs 56°F, 3.9 in rain · 1°C (2°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Napa in January: quick answers
Is January a good time to visit Napa?
It's one of the tougher months here, scoring 65/100, held back mainly by cool days. The best months are April – June and September – November. Expect highs of 54°F (12°C) and 4.7 in (120 mm) of rain. Our California Wine Country route recommends Apr – Oct, so January is outside its suggested window.
How cold is Napa in January?
Average highs are 54°F (12°C) and average lows 37°F (3°C), making it the 2nd-coldest month by daytime highs.
Does it rain a lot in Napa in January?
Yes: about 4.7 in (120 mm) of rain falls across January on average, the 3rd-wettest month of the year. The annual total is about 27.1 in (689 mm).
What should I pack for Napa in January?
Bring insulated jacket (highs only 54°F), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Napa in January?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.