Napa Weather Forecast
Napa weather: 58°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Napa is a city in California. Napa is known for Wine country tasting rooms. It has a population of about 80.000.
Right now it is 58°F (14°C) in Napa with clear. It feels like 57°F. Today runs from 54°F to 87°F. Chance of precipitation is 0%. Sightseeing conditions score 9.6/10 - excellent - go now.
The best time to visit Napa is May, June, July, August and September. The climate is Mediterranean. January, February and December tend to be the least comfortable months. August is the warmest month with average highs near 87°F, while January is the coldest with lows near 41°F.
The closest major airport is San Francisco International Airport (SFO), about 47 mi away. Nearby highlights include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve and Emerald Bay State Park.
In plain terms. Today is about average for August. The forecast high of 87°F is in line with the 87°F typical for this month. The best window to be outside is roughly 9 AM to 12 PM, when temperature, rain chance and wind line up best. hiking is the strongest bet in Napa today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Napa right now
Source: Open-Meteo. Updated 12:11 PM, Aug 22 local time.
See the Napa forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Napa
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | ☁️ Overcast | 87° / 54° | 0% | 10 mph | 8 |
| Sun, Aug 23 | 🌥️ Fog | 85° / 56° | 0% | 9 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 82° / 56° | 1% | 10 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 85° / 54° | 0% | 11 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 87° / 53° | 1% | 11 mph | 8 |
| Thu, Aug 27 | ☁️ Overcast | 89° / 55° | 4% | 11 mph | 7 |
| Fri, Aug 28 | ☀️ Clear sky | 87° / 56° | 1% | 10 mph | 7 |
| Sat, Aug 29 | ⛅ Partly cloudy | 89° / 55° | 1% | 10 mph | 7 |
| Sun, Aug 30 | ☁️ Overcast | 84° / 55° | 1% | 13 mph | 7 |
| Mon, Aug 31 | ☀️ Clear sky | 82° / 53° | 0% | 11 mph | 7 |
| Tue, Sep 1 | ☁️ Overcast | 79° / 55° | 1% | 8 mph | 6 |
| Wed, Sep 2 | ☁️ Overcast | 78° / 54° | 0% | 8 mph | 7 |
| Thu, Sep 3 | ☀️ Clear sky | 86° / 53° | 0% | 8 mph | 7 |
| Fri, Sep 4 | 🌤️ Mainly clear | 83° / 53° | 3% | 10 mph | 7 |
| Sat, Sep 5 | ☁️ Overcast | 100° / 54° | 6% | 10 mph | 7 |
| Sun, Sep 6 | ☀️ Clear sky | -- / -- | 3% | -- | — |
Climate in Napa month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 59° | 41° | 3,9 in | ★★★☆☆ |
| February | 60° | 43° | 7,4 in | ★★☆☆☆ |
| March | 65° | 45° | 3,5 in | ★★★★☆ |
| April | 68° | 46° | 2,2 in | ★★★★☆ |
| May | 76° | 51° | 0,6 in | ★★★★★ |
| June | 82° | 54° | 0,0 in | ★★★★★ |
| July | 85° | 56° | 0,0 in | ★★★★★ |
| August | 87° | 57° | 0,1 in | ★★★★★ |
| September | 82° | 56° | 0,3 in | ★★★★★ |
| October | 77° | 53° | 0,9 in | ★★★★★ |
| November | 65° | 46° | 4,4 in | ★★★☆☆ |
| December | 59° | 43° | 7,0 in | ★★☆☆☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Weather map for Napa
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Napa
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Napa
Go in May, June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Napa
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Napa?
Napa is a city in California. Its coordinates are 38.2975, -122.2869. It lies in North America.
What is the weather like in Napa right now?
It is currently 58°F (14°C) with clear. Humidity is 91% and wind is 5 mph.
When is the best time to visit Napa?
May, June, July, August and September offer the most comfortable conditions in Napa, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Napa in?
Napa observes America/Los_Angeles (UTC-07:00). The local time is 12:11 PM.
How many people live in Napa?
Napa has a population of approximately 80.000.
What is the nearest airport to Napa?
The closest airports are San Francisco International Airport (SFO), 47 mi away.
What are the top things to do in Napa?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Emerald Bay State Park, Lake Tahoe and Pinnacles National Park.
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| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 12:11 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
