Napa

Napa Valley Weather in April

Average temperatures, rainfall, sunshine and the best places to visit in the Napa Valley, the United States of America in April.

Thinking about venturing to the Napa Valley, the United States of America this April and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in the Napa Valley in April

The Napa Valley, the United States of America is a region in the United States of America. April in the Napa Valley generally has temperatures that range from pleasant to warm, with moderate precipitation.

Temperatures

During the day temperatures vary from pleasant in American Canyon at 20°C (68°F) to warm in St. Helena at 22°C (72°F). At night it cools down to 8°C (46°F) in St. Helena and 7°C (45°F) in American Canyon.

To learn more about the conditions in specific areas of the Napa Valley, the United States of America, check out the map below.

Precipitation

In April, precipitation varies across different areas. From moderate rainfall in American Canyon with an average of 48 mm (1.9 in) to moderate rainfall in Calistoga with 70 mm (2.8 in).

Average sunshine

Most destinations offer generous amounts of sunshine this April. For example, Napa gets approximately 305 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore the Napa Valley by month

Pick a month to see the average temperature, rainfall and sunshine in the Napa Valley — and find the best time to visit. (based on Napa)

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.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in the Napa Valley

What is the weather like in April for some of the most popular destinations in the Napa Valley, the United States of America?

Temperature range in the Napa Valley (April)

Precipitation variation in the Napa Valley (April)

Napa

In April Napa generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

March
April
May
Max temperature
19°C (66°F)
22°C (72°F)
25°C (77°F)
Min temperature
6°C (43°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
270 hours
305 hours
310 hours
Monthly rainfall
93 mm (3.7 in)
50 mm (2 in)
16 mm (0.6 in)
Monthly rainy days
10 days
7 days
3 days
Weather conditions

Calistoga

In April Calistoga generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

March
April
May
Max temperature
18°C (64°F)
21°C (70°F)
25°C (77°F)
Min temperature
6°C (43°F)
7°C (45°F)
9°C (48°F)
Monthly sun hours
270 hours
305 hours
310 hours
Monthly rainfall
149 mm (5.9 in)
70 mm (2.8 in)
24 mm (0.9 in)
Monthly rainy days
12 days
8 days
4 days
Weather conditions

St. Helena

In April St. Helena generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

March
April
May
Max temperature
19°C (66°F)
22°C (72°F)
26°C (79°F)
Min temperature
6°C (43°F)
8°C (46°F)
10°C (50°F)
Monthly sun hours
270 hours
305 hours
310 hours
Monthly rainfall
138 mm (5.4 in)
56 mm (2.2 in)
21 mm (0.8 in)
Monthly rainy days
12 days
8 days
4 days
Weather conditions

Yountville

In April Yountville generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

March
April
May
Max temperature
19°C (66°F)
22°C (72°F)
25°C (77°F)
Min temperature
6°C (43°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
270 hours
305 hours
310 hours
Monthly rainfall
113 mm (4.4 in)
53 mm (2.1 in)
19 mm (0.7 in)
Monthly rainy days
11 days
7 days
4 days
Weather conditions

American Canyon

In April American Canyon generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

March
April
May
Max temperature
18°C (64°F)
20°C (68°F)
23°C (73°F)
Min temperature
6°C (43°F)
7°C (45°F)
9°C (48°F)
Monthly sun hours
270 hours
310 hours
324 hours
Monthly rainfall
79 mm (3.1 in)
48 mm (1.9 in)
13 mm (0.5 in)
Monthly rainy days
10 days
7 days
3 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in the Napa Valley, in the United States of America.

Popular cities in April

Day & night temperatures, rainfall and average weather in the Napa Valley in April.

City Weather Day temp Night temp Rainfall
Napa 22°C (72°F) 7°C (45°F) 50 mm (2 in)
Calistoga 21°C (70°F) 7°C (45°F) 70 mm (2.8 in)
St. Helena 22°C (72°F) 8°C (46°F) 56 mm (2.2 in)
Yountville 22°C (72°F) 7°C (45°F) 53 mm (2.1 in)
American Canyon 20°C (68°F) 7°C (45°F) 48 mm (1.9 in)

The Napa Valley weather in April: frequently asked questions

What is the weather like in the Napa Valley, the United States of America in April?

In April, the Napa Valley, the United States of America generally has perfect weather conditions. Napa sees daytime temperatures near 22°C (72°F), with nights cooling to roughly 7°C (45°F).

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

Daytime temperatures in Napa peak at roughly 22°C (72°F) in April, dropping to about 7°C (45°F) overnight.

Does the Napa Valley, the United States of America get a lot of rain in April?

April is on the drier side in the Napa Valley, the United States of America. Napa averages only about 50 mm (2 in), with most days staying dry.

Is April a Good Time to Visit the Napa Valley, the United States of America?

We consider April to be one of the best times to travel to the Napa Valley, the United States of America. Typically, the climate in Napa is perfect.

Generally speaking, April, May, June, July, August and October provide perfect weather in Napa. The weather in February and December, on the other hand, tends to be unpleasant.

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.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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