San Mateo Weather in July

During July, San Mateo experiences high daytime temperatures of 24°C (75°F) and cooler nights around 14°C (57°F). As the driest month of the year, rainfall is at its lowest.

Rainfall in San Mateo in July

Expect the least amount of rain this month, providing an excellent opportunity for outdoor activities. Enjoy the clearest skies and driest conditions of the year. Typically, about 0 days will experience rainfall, with an average of 0 mm (0 in) for the month.

Temperature in San Mateo in July

July tends to be one of the excellent months in San Mateo, with 24°C (75°F) in the afternoon and 14°C (57°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 14°C (57°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 San Mateo in July

There are approximately 313 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in San Mateo in July

Wind speeds average 7 m/s (14 knots) during July. At this speed, you experience strong wind that can make entire trees sway and create resistance when walking. Since this is an average, expect variation from moderate windy periods to particularly gusty days when umbrellas become difficult to control.

Average water temperature in July

The water temperature is 14°C (57°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

If you're a fan of comfortable temperatures and drier conditions, July is a great time to visit.

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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 San Mateo's climate page.

San Mateo Temperature in July

Min Temperature 14°C (57°F)  

Max Temperature 24°C (75°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 0%  

Precipitation 0 mm (0 in)  

Rainy days 0 days  

Humidity 75% *  

Windspeed 7 m/s (14 knots) *  

Sunshine 313 hours *  

Percentage Sunshine 70% *  

* Data from: San Francisco, the United States of America (10 KM, 6 Miles).

What to Wear in San Mateo in July

For San Mateo in July, 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. With water temperatures around 14°C (57°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in San Mateo in July

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

Swimming

10/10

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 San Mateo's climate page.

More climate data for San Mateo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full San Mateo climate overview or explore weather in the United States of America.