Sunnyvale Weather in April

April in Sunnyvale brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 9°C (48°F). With perfect weather conditions overall, it's a good time to visit.

Rainfall in Sunnyvale in April

Historically, approximately 6 days this month are expected to have rain, averaging 31 mm (1.2 in). The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.

Temperature in Sunnyvale in April

Sunnyvale in April is worth a visit. The temperature is perfect, with 20°C (68°F) during the day and 9°C (48°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Sunnyvale in April

With approximately 310 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Sunnyvale's climate page.

Sunnyvale Temperature in April

Min Temperature 9°C (48°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 20%  

Precipitation 31 mm (1.2 in)  

Rainy days 6 days  

Humidity 72% *  

Sunshine 310 hours *  

Percentage Sunshine 78% *  

* Data from: San Francisco, the United States of America (41 KM, 25 Miles).

What to Wear in Sunnyvale in April

For Sunnyvale in April, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Sunnyvale in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

5/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Sunnyvale's climate page.

More climate data for Sunnyvale

Temperature Rainfall Sunshine Humidity

See the full Sunnyvale climate overview or explore weather in the United States of America.