Napa Klimat and Average Väder
Klimat of Napa: average temperatures, rainfall and seasons month by month.
Klimat in Napa month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 15° | 5° | 98 mm | ★★★☆☆ |
| februari | 16° | 6° | 187 mm | ★★☆☆☆ |
| mars | 19° | 7° | 88 mm | ★★★★☆ |
| april | 20° | 8° | 55 mm | ★★★★☆ |
| maj | 24° | 11° | 16 mm | ★★★★★ |
| juni | 28° | 12° | 1 mm | ★★★★★ |
| juli | 29° | 13° | 1 mm | ★★★★★ |
| augusti | 30° | 14° | 2 mm | ★★★★★ |
| september | 28° | 13° | 8 mm | ★★★★★ |
| oktober | 25° | 12° | 23 mm | ★★★★★ |
| november | 18° | 8° | 111 mm | ★★★☆☆ |
| december | 15° | 6° | 178 mm | ★★☆☆☆ |
Klimat type: Mediterranean. Källa: Open-Meteo archive (ERA5).
Recent extremes in Napa
Högest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Napa compares med nearby places
Annual averages, and the difference against Napa.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Alcatraz Island | 54 km | 14°C | 1°C cooler | 646 mm |
| Fisherman's Wharf | 56 km | 14°C | 1°C cooler | 646 mm |
| Golden Gate Bridge | 56 km | 14°C | 1°C cooler | 646 mm |
| ZIP Code 94133 | 56 km | 14°C | 1°C cooler | 646 mm |
| ZIP Code 94102 | 59 km | 14°C | 1°C cooler | 646 mm |
Bästa tiden att besöka Napa
Go in maj, juni, juli, augusti and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.
What this means for Napa
Today is slightly cooler than average for september. The forecast high of 26°C is 1.7°C below the 28°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni och augusti.
The gap between the warmest and coldest month averages 11°C.
What och pack, what och skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sönglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.
Sammanfattning
Napa is a city in California. Napa is known for Wine country tasting rooms. Befolkningen är cirka 80.000.
Just nu är det 14°C (56°F) in Napa med dimma. Det känns som 14°C. I dag varierar temperaturen mellan 13°C och 26°C. Risken för nederbörd är 0%. Sightseeing conditions score 9.6/10 - utmärkt — åk nu.
Bästa tiden att besöka Napa is maj, juni, juli, augusti and september. Klimatet är Mediterranean. januari, februari and december tend och be the least comfortable months. augusti is the warmest month med average highs near 30°C, while januari is the coldest med lows near 5°C.
The closest major airport is San Francisco International Airport (SFO), about 76 km away. Nearby highlights include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve and Emerald Bay State Park.
Enkelt förklarat. Today is slightly cooler than average for september. The forecast high of 26°C is 1.7°C below the 28°C typical for this month. The best window och be outside is roughly 10 AM och 1 PM, when temperature, rain chance and wind line up best. hiking is the strongest bet in Napa today at 9.8/10. 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.
Quick facts about Napa
| Typ | City |
|---|---|
| State | California |
| Land | USA |
| Kontinent | Nordamerika |
| Koordinater | 38°17′51″N 122°17′12.8″W (38.2975, -122.2869) |
| Befolkning | 80.000 |
| Known for | Wine country tasting rooms |
| Lokal tid | 3:22 AM (UTC-07:00) |
| Best months | maj, juni, juli, augusti and september |
| Klimat | Mediterranean |
Väder map for Napa
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore Napa
Every topic we hold for this place, and the same topic for the places around it.
Klimat 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 Nordamerika.
What is the weather like in Napa just nu?
It is currently 14°C (56°F) med dimma. Luftfuktighet is 96% and wind is 5 km/h.
When is the best time och visit Napa?
maj, juni, juli, augusti and september offer the most comfortable conditions in Napa, which has a Mediterranean climate. januari, februari 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 3:22 AM.
How many people live in Napa?
Napa has a population of approximately 80.000.
What is the nearest airport och Napa?
The closest airports are San Francisco International Airport (SFO), 76 km away.
What are the top things och do in Napa?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Emerald Bay State Park, Pinnacles National Park and julia Pfeiffer Burns State Park.
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| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 september 15, 2026 at 3:22 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
