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

Planning a trip to Castro Valley in August? Here's what the weather might have in store during this month.

In Castro Valley, August is characterized by high temperatures and almost no rainfall. August is a summer month. Anticipate daytime temperatures around 24°C, while night temperatures can drop to 13°C.

Castro Valley in August usually receives almost no rainfall, averaging around 0.1 mm for the month. It is the driest month of the year. For those who prefer outdoor activities, it's a great time to explore without the huge concern of sudden downpours. When we look at the climate data from the last 30 years, we can expect around 0 days of rain.

The days are predominantly sunny, with an estimated total of around 288 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

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 August

Min Temperature 13°C  

Max Temperature 24°C  

Chance of Rain 0%  

Precipitation 0.1 mm  

Rainy days 0 days  

Humidity 75% *  

Sunshine 288 hours *  

Percentage Sunshine 68% *  

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

Where to go in the United States of America in August

Find out more about the weather in the United States of America in August and which places have the best weather 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 Castro Valley in August?

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 in August.

Swimming

10/10

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 climate conditions. Find out where to go with our weather planner.