Castro Valley Weather in October

With daytime temperatures of 23°C (73°F) and nighttime lows of 11°C (52°F), October in Castro Valley brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in Castro Valley in October

Analyzing past climate data, one can expect approximately 5 days of rain, averaging 30 mm (1.2 in). The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Castro Valley in October

If you're visiting Castro Valley in October, expect excellent temperatures with highs of 23°C (73°F) and overnight lows of 11°C (52°F). This kind of day-to-night contrast is typical for this time of year. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Castro Valley in October

Expect sunny days throughout the month, with an estimated 243 hours of sunshine. This makes it a pleasant time to visit Castro Valley.

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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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 October

Min Temperature 11°C (52°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 16%  

Precipitation 30 mm (1.2 in)  

Rainy days 5 days  

Humidity 71% *  

Sunshine 243 hours *  

Percentage Sunshine 71% *  

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

What to Wear in Castro Valley in October

For Castro Valley in October, 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. 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 October

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

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.