Early spring · Weather & things to do
Napa in March
Napa warms up: highs climb to 60°F (16°C), from 56°F in February, with lows of 41°F (5°C) and about 3.8 in (97 mm) of rain.
Our comfort score puts it mid-table at 79/100, 9th of 12.
- Avg high
- 60°F (16°C)
- Avg low
- 41°F (5°C)
- Rain
- 3.8 in (97 mm)
- Humidity
- 81%
- Cloud cover
- 52%
- Daylight
- ~11 h 42 min
- Comfort score
- 79/100 · Great
What March feels like
Expect mild afternoons around 60°F (16°C), good for long walks.
After dark, temperatures fall to about 41°F (5°C).
Some rain is likely, about 3.8 in (97 mm) in the month, so pack for a shower or two.
Plan around March
March sits mid-table; the best months are April – June and September – November.
- Comfort improves from 69/100 in February to 79/100.
- Our California Wine Country route recommends Apr – Oct, so March falls outside its suggested window.
What to pack for March
- A warm layer for eveningslows near 41°F
- Packable rain jacket or umbrellaabout 3.8 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Napa in March
March is good outdoor weather here, so these picks lean toward the open air.
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.
Bouchon Bakery
Thomas Keller's Yountville bakery for croissants and coffee.
Mustards Grill
Highway 29 roadhouse serving wine-country comfort food since 1983.
Domaine Carneros
Chateau-style sparkling wine house with a terrace over the vineyards.
Why now March scores 79/100 for comfort, good conditions for being outside.
Nearby in March
- Sonoma in March~18 mi · highs 63°F, 3.8 in rain · 2°C (3°F) warmer by day, about as wet
- Healdsburg in March~33 mi · highs 59°F, 5.2 in rain · similar daytime temperatures, wetter
- Old Sacramento Waterfront in March~42 mi · highs 65°F, 3.5 in rain · 3°C (5°F) warmer by day, about as wet
- San Francisco in March~51 mi · highs 61°F, 3.2 in rain · similar daytime temperatures, 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 March: quick answers
Is March a good time to visit Napa?
It's middling, scoring 79/100. The best months are April – June and September – November, at up to 100. Expect highs of 60°F (16°C) and 3.8 in (97 mm) of rain. Our California Wine Country route recommends Apr – Oct, so March is outside its suggested window.
How cold is Napa in March?
Average highs are 60°F (16°C) and average lows 41°F (5°C), making it the 4th-coldest month by daytime highs.
Does it rain a lot in Napa in March?
Some: about 3.8 in (97 mm) of rain falls across March on average, the 4th-wettest month of the year. The annual total is about 27.1 in (689 mm).
What should I pack for Napa in March?
Bring a warm layer for evenings (lows near 41°F), packable rain jacket or umbrella (about 3.8 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Napa in March?
Share this March plan with your group, poll everyone on dates and keep the packing list in one place.