Castro Valley Weather in March

March in Castro Valley brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 7°C (45°F). Quite a bit of rainfall is expected, around 89 mm (3.5 in), so pack an umbrella.

Rainfall in Castro Valley in March

Historically, approximately 12 days this month are expected to have rain, averaging 89 mm (3.5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Castro Valley in March

If you're visiting Castro Valley in March, expect highs of 18°C (64°F) and overnight lows around 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Castro Valley in March

The days are predominantly sunny, with an estimated total of around 270 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances for Castro Valley.

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• January
• February
• March
• April

• May
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• September
• October
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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 March

Min Temperature 7°C (45°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 40%  

Precipitation 89 mm (3.5 in)  

Rainy days 12 days  

Humidity 75% *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

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

What to Wear in Castro Valley in March

For Castro Valley in March, 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Castro Valley in March

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

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

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.