Normal weather for Napa in July
It's warm in July in Napa with an average temperature of 27°C. Temperatures this month range from a low of 24°C to a high of 30°C. At night, you can expect temperatures between 13°C and 15°C.
According to weather history, there is only 0,5 mm of precipitation in July. The wind speed is around 4 Bft, mostly coming from the Southwest.
Napa in July |
New York | ||
|---|---|---|---|
 Average Temperature |
27°C | 31°C | |
 High Temp |
30°C | 33°C | |
| Low Temp |
24°C | 29°C | |
 Total Precipitation |
0,5 mm | 160 mm | |
| Rainy Days |
1 day | 18 days | |
Start of July
The month of July starts in Napa with hot temps, averaging around 27°C during the day and nights around 14°C. No precipitation expected at the start of the month; it’ll be sunny.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
Mid July
By mid-July, daytime temps stay steady at around 27°C, with nights around 14°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
End of July
By the end of July, the average daytime temperature in Napa is around 28°C, while nighttime temps are about 14°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit Napa?
Looking for great weather? July is a good time to be in Napa. The temperatures are nice, and there’s little chance of rain this month.
Temperature records for Napa in July
Check out the climate of Napa for all months and discover the best travel time
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Daily Temperature in July in Napa
This chart shows the average daily high and low temperatures in July for Napa, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in July in Napa
The chart below shows the average daily precipitation in July for Napa, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for July, you can expect about 1 day of precipitation in Napa.
Daily UV Index in July in Napa
This chart shows the average daily UV index in July in Napa, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in July in Napa Over the Years
This chart shows the average temperature in July in Napa, measured in degrees Celsius, over the past few years.
Total Precipitation in July in Napa Over the Years
This chart shows the average precipitation in July in Napa, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in July for Napa
Click on any day in July to get detailed info about the usual weather on that day in Napa. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Napa
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Average Weather in Napa by Month
Click on a month below to see detailed weather info for Napa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
