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Napa Valley United States of America
Temperatures in July
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Temperature in Napa Valley in July

Napa Valley is a region in the United States of America. July in has maximum daytime temperatures ranging from high in American Canyon with 27°C to very high temperatures in Calistoga with 32°C. Nighttime temperatures generally drop to 13°C in Calistoga and 13°C in American Canyon. July is a summer month.

What is the temperature of the different cities in Napa Valley in July?

Find the average daytime temperatures in July for the most popular destinations in Napa Valley on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in July in Napa Valley?
    • Calistoga tops the warmest city list in our database with average maximum daytime temperatures around 32°C and a minimum nighttime temperature of around 13°C.

  • What is the coldest city in July in Napa Valley?
    • According to our data, American Canyon holds the title for the coldest city in Napa Valley in July. It experiences maximum temperatures of approximately 27°C and drops to lows of about 13°C during the night.

  • How much sun does Napa Valley get in July?
    • Napa enjoys approximately 306 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

    Interested in more climate information?

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    • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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