Castro Valley Weather in April

Castro Valley in April sees pleasant temperatures, with highs around 19°C (66°F) and overnight lows of 8°C (46°F). Around 51 mm (2 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.

Rainfall in Castro Valley in April

Past climate data indicates that roughly 8 days will see rain, totalling around 51 mm (2 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Castro Valley in April

If you're visiting Castro Valley in April, expect highs of 19°C (66°F) and overnight lows around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Castro Valley in April

There are approximately 310 hours of sunshine this month, resulting in mostly clear days.

If you prefer enjoying temperate temperatures and rain-free days, May, June, July, August, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• 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 Castro Valley's climate page.

Castro Valley Temperature in April

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 27%  

Precipitation 51 mm (2 in)  

Rainy days 8 days  

Humidity 72% *  

Sunshine 310 hours *  

Percentage Sunshine 78% *  

* Data from: San Francisco, the United States of America (27 KM, 17 Miles).

What to Wear in Castro Valley in April

Pleasant temperatures in April mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Castro Valley in April

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

Cycling

10/10

Walking

10/10

Camping

4/10

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 Castro Valley's climate page.

More climate data for Castro Valley

Temperature Rainfall Sunshine Humidity

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