Temperature in The Napa Valley in April

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

The Napa Valley, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in April ranging from 20°C (68°F) in American Canyon to 22°C (72°F) in St. Helena. Nighttime temperatures generally drop to 8°C (46°F) in St. Helena and 7°C (45°F) in American Canyon.

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

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

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 April

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 April: blue is cold, red is hot.

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

The Napa Valley temperatures in April: frequently asked questions

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

Napa averages a daytime high of 22°C (72°F) in April, which is high for the Napa Valley, the United States of America.

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

Nighttime temperatures in Napa typically drop to around 7°C (45°F) in April.

What is the warmest city in April 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 22°C (72°F), while at night it goes down to an approximate temperature of 8°C (46°F).

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

According to our data, American Canyon holds the title for the coldest city in the Napa Valley, the United States of America in April. It experiences maximum temperatures of approximately 20°C (68°F) and drops to lows of about 7°C (45°F) during the night.

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

Napa enjoys approximately 305 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to 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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