Napa
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Napa Weather in August

August in Napa brings high temperatures, with highs of 29°C (84°F) and nights dropping to 13°C (55°F). It's also the driest month of the year, ideal for those who want to avoid rain.

Rainfall in Napa in August

Enjoy minimal rain interruptions this month. It's an excellent time for outdoor plans, from sports to festivals. Past climate data indicates that roughly 0 days will see rain, totalling around 0.1 mm (0 in) for the month.

Temperature in Napa in August

Weather in Napa is at its excellent in August. Highs reach 29°C (84°F), while nights settle around 13°C (55°F). This kind of day-to-night contrast is typical for this time of year. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Napa in August

The city usually sees around 290 hours of sunlight, indicating many sunny days , a great month for sightseeing.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Napa.

Napa Temperature in August

Min Temperature
13°C (55°F)
Max Temperature
29°C (84°F)
Chance of Rain
0%
Precipitation
0.1 mm (0 in)
Rainy days
0 days
Sunshine
290 hours *
Percentage Sunshine
71% *
* Data from: Healdsburg, the United States of America (61 KM, 38 Miles).

Napa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Napa - and find the best time to visit.

Best Places in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Napa in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Napa in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Napa 3-Day Forecast

More climate data for Napa

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.