Early spring · Weather & things to do
Sonoma in March
Sonoma warms up: highs climb to 63°F (17°C), from 59°F in February, with lows of 44°F (7°C) and about 3.8 in (97 mm) of rain.
It scores 84/100 for comfort, 6th of 12, which makes it a solid shoulder-season month.
- Avg high
- 63°F (17°C)
- Avg low
- 44°F (7°C)
- Rain
- 3.8 in (97 mm)
- Humidity
- 81%
- Cloud cover
- 52%
- Daylight
- ~11 h 42 min
- Comfort score
- 84/100 · Great
What March feels like
Highs near 63°F (17°C) make for comfortable sightseeing weather.
After dark, temperatures fall to about 44°F (7°C).
Showers are part of the month, adding up to about 3.8 in (97 mm).
Plan around March
March is shoulder season: good weather, a step below the best months (April – June and October & November).
- Comfort improves from 74/100 in February to 84/100.
- Our California Wine Country route recommends Apr – Oct, so March falls outside its suggested window.
What to pack for March
- A warm layer for eveningsnights drop to 44°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Sonoma in March
With conditions on your side, the picks below favor time outside.
Basque Boulangerie Café
Plaza bakery for pastries, coffee and sandwiches to take on the road.
Why now March scores 84/100 for comfort, good conditions for being outside.
Jack London State Historic Park
Ranch trails, vineyard views and the ruins of Jack London's Wolf House.
Why now Highs near 63°F and 3.8 in of monthly rain make this an easy outdoor pick.
The Girl & the Fig
Wine-country French cooking just off the plaza, open since 1997.
Why now One to do outside while the weather is on your side.
Mission San Francisco Solano
The last of California's 21 missions, part of Sonoma State Historic Park.
Sonoma Plaza
California's largest town square, ringed by tasting rooms and shops.
Nearby in March
- Napa in March~18 mi · highs 60°F, 3.8 in rain · 2°C (3°F) cooler by day, about as wet
- Healdsburg in March~31 mi · highs 59°F, 5.2 in rain · 2°C (4°F) cooler by day, wetter
- San Francisco in March~36 mi · highs 61°F, 3.2 in rain · 1°C (3°F) cooler by day, drier
- Old Sacramento Waterfront in March~55 mi · highs 65°F, 3.5 in rain · 1°C (2°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~266 m to Sonoma's ~26 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Sonoma in March: quick answers
Is March a good time to visit Sonoma?
It's a good shoulder-season choice, scoring 84/100 against a best of 100 in April – June and October & November. Expect highs of 63°F (17°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 Sonoma in March?
Average highs are 63°F (17°C) and average lows 44°F (7°C), making it the 4th-coldest month by daytime highs.
Does it rain a lot in Sonoma 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 Sonoma in March?
Bring a warm layer for evenings (nights drop to 44°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Sonoma in March?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.