San Mateo Weather in October
San Mateo in October averages 22°C (72°F) during the day and 12°C (54°F) at night. Some rainfall is typical for this time of year.
Rainfall in San Mateo in October
You can expect rain on roughly 4 days based on historical data, averaging 23 mm (0.9 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in San Mateo in October
October is one of the better months to visit San Mateo. Expect 22°C (72°F) during the day and 12°C (54°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in San Mateo in October
Expect sunny days throughout the month, with an estimated 243 hours of sunshine. This makes it a pleasant time to visit San Mateo.
Wind Speed in San Mateo in October
October sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in October
With water at 14°C (57°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Mateo's climate page.
San Mateo Temperature in October
Min Temperature
12°C (54°F)
Max Temperature
22°C (72°F)
Water Temperature
14°C (57°F) *
Chance of Rain
13%
Precipitation
23 mm (0.9 in)
Rainy days
4 days
Humidity
71% *
Windspeed
4 m/s (8 knots) *
Sunshine
243 hours *
Percentage Sunshine
71% *
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
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What to Wear in San Mateo in October
Comfortable temperatures call for an easy wardrobe in October. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Mateo in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Mateo's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full San Mateo climate overview or explore weather in the United States of America.
