San Mateo Weather in March

With daytime temperatures of 18°C (64°F) and nighttime lows of 8°C (46°F), March in San Mateo brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 72 mm (2.8 in) falls on average.

Rainfall in San Mateo in March

Historically, March sees about 11 days of rain, with a monthly average of 72 mm (2.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in San Mateo in March

In March, San Mateo gets moderate temperatures, with highs of 18°C (64°F). Nights cool to around 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in San Mateo in March

Expect sunny days throughout the month, with an estimated 270 hours of sunshine. This makes it a pleasant time to visit San Mateo.

Wind Speed in San Mateo in March

Wind speeds average 5 m/s (10 knots) during March. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in March

The water sits at 12°C (54°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you prefer dry days with pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 March

Min Temperature 8°C (46°F)  

Max Temperature 18°C (64°F)  

Water Temperature 12°C (54°F) *  

Chance of Rain 37%  

Precipitation 72 mm (2.8 in)  

Rainy days 11 days  

Humidity 75% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

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

What to Wear in San Mateo in March

For San Mateo in March, 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. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 12°C (54°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. 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 March

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

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

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.