Temperature in The Napa Valley in June

Daytime highs, nighttime lows and the warmest cities in the Napa Valley, the United States of America this June.

The Napa Valley, the United States of America, a region in the United States of America, experiences high average maximum daytime temperatures in June, ranging from 26°C (79°F) in American Canyon to 30°C (86°F) in St. Helena. Nighttime temperatures generally drop to 12°C (54°F) in St. Helena and 11°C (52°F) in American Canyon.

What is the temperature of the different cities in the Napa Valley, the United States of America in June?

Discover the typical June temperatures for the most popular locations of the Napa Valley on the map below. Detailed insights are just a click away.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit the Napa Valley, check out our the Napa Valley's climate page.

See also: the Napa Valley weather by month.

Best Places to Visit in the Napa Valley in June

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Napa Valley.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in June: blue is cold, red is hot.

See all June weather averages, cities and regions in the Napa Valley

The Napa Valley temperatures in June: frequently asked questions

How hot does it get in the Napa Valley, the United States of America in June?

Daytime temperatures in Napa typically peak at 28°C (82°F) in June, putting it in the high range.

How cold does it get at night in the Napa Valley, the United States of America in June?

Napa sees nighttime lows close to 12°C (54°F) in June.

What is the warmest city in June in the Napa Valley, the United States of America?

Based on our systematic data collection, St. Helena has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 30°C (86°F), while at night it goes down to an approximate temperature of 12°C (54°F).

What is the coldest city in June in the Napa Valley, the United States of America?

The coldest city in June in the Napa Valley, the United States of America is American Canyon when we check our database. The maximum daytime temperatures are around 26°C (79°F) and minimum nighttime temperatures fall around 11°C (52°F).

How much sun does the Napa Valley, the United States of America get in June?

Napa enjoys close to 305 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

Interested in more climate information?

We have much more information about the climate in the Napa Valley.

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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