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.