Mid-summer · Weather & things to do
Napa in July
Napa's warmest month brings highs averaging 89°F (32°C), lows of 56°F (13°C) and less than 0.1 in (3 mm) of rain.
It scores 82/100 for comfort, 8th of 12, which makes it a solid shoulder-season month.
- Avg high
- 89°F (32°C)
- Avg low
- 56°F (13°C)
- Rain
- less than 0.1 in (3 mm)
- Humidity
- 49%
- Cloud cover
- 19%
- Daylight
- ~14 h 26 min
- Comfort score
- 82/100 · Great
What July feels like
Expect proper heat: afternoons average 89°F (32°C), so plan walking and hiking for the morning and save midday for shade, lunch or a swim.
Mornings start much cooler: lows average 56°F (13°C), about 19°C (33°F) below the afternoon high.
It's one of the drier stretches, with only less than 0.1 in (3 mm) of rain.
Sunny spells dominate: cloud cover averages 19%.
Plan around July
July is shoulder season: good weather, a step below the best months (April – June and September – November).
- Comfort slips from 94/100 in June to 82/100.
- July sits inside the Apr – Oct window our California Wine Country route recommends.
What to pack for July
- Light, breathable clotheshighs average 89°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningslows near 56°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Napa in July
Afternoons run hot (89°F), so these picks mix early-start outdoor spots with cool indoor breaks.
Bouchon Bakery
Thomas Keller's Yountville bakery for croissants and coffee.
Why now A break from 89°F afternoons.
Mustards Grill
Highway 29 roadhouse serving wine-country comfort food since 1983.
Why now Somewhere to sit out the hottest hours.
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.
Stag's Leap Wine Cellars
Home of the Cabernet that won the 1976 Judgment of Paris.
Nearby in July
- Sonoma in July~18 mi · highs 92°F, 0.0 in rain · 2°C (3°F) warmer by day, about as wet
- Healdsburg in July~33 mi · highs 76°F, 0.0 in rain · 7°C (13°F) cooler by day, about as wet
- Old Sacramento Waterfront in July~42 mi · highs 98°F, 0.0 in rain · 5°C (9°F) warmer by day, about as wet
- San Francisco in July~51 mi · highs 73°F, 0.0 in rain · 9°C (16°F) cooler by day, about as wet
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 July: quick answers
Is July a good time to visit Napa?
It's a good shoulder-season choice, scoring 82/100 against a best of 100 in April – June and September – November. Expect highs of 89°F (32°C) and less than 0.1 in (3 mm) of rain. July is inside the Apr – Oct window our California Wine Country route recommends.
How hot is Napa in July?
Average highs are 89°F (32°C) and average lows 56°F (13°C), making it the warmest month by daytime highs.
Does it rain a lot in Napa in July?
Not much: less than 0.1 in (3 mm) of rain falls across July on average, the 2nd-driest month of the year. The annual total is about 27.1 in (689 mm).
What should I pack for Napa in July?
Bring light, breathable clothes (highs average 89°F), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (lows near 56°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Routes in season in July
- California Wine Country Apr – Oct
Planning Napa in July?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.