Castro Valley weather in May (California, United States of America)

What weather conditions can you expect in Castro Valley this May? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

Experience perfect weather in Castro Valley in May, characterized by pleasant temperatures and low rainfall. You can expect daytime temperatures to reach around 21°C, while the nights will see a decline to about 10°C.

Precipitation

Castro Valley in May usually receives low rainfall, averaging around 12 mm for the month. Records from the past 30 years suggest that around 3 days will experience rain.

Average sunshine

With approximately 324 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August, September and October typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Castro Valley climate page with graphs.

 

Castro Valley, monthly averages in May

Min Temperature 10°C  

Max Temperature 21°C  

Chance of Rain 10%  

Precipitation 12 mm  

Rainy days 3 days  

Humidity 72% *  

Sunshine 324 hours *  

Percentage Sunshine 73% *  

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

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

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

So, what should you wear in this month?

For visitors traveling to Castro Valley, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.

What To Do

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

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Castro Valley.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find 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.