Weather in San Mateo County, United States in March

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Visiting San Mateo County, United States in March

The weather in March is marginally warmer than the previous month and temperatures continue to rise slightly into April. March has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 69% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright. It is not a good time for sunbathing in San Mateo County.

March has total rainfall of 5.4cm (2.1inches) making it mostly dry with only intermittent light showers. There are only 13.6 days with some rainfall so you can still enjoy the beach on the majority of days.

Sea temperatures are a cold 15°C (59°F). March is too cold for swimming in San Mateo County for any length of time, unless you have a wetsuit.

Consider visiting San Mateo County in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for March.

Can you sunbathe in San Mateo County in March?

No, March is not a good time for sunbathing in San Mateo County.

March has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 69% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright. March has total rainfall of 5.4cm (2.1inches) making it mostly dry with only intermittent light showers. There are only 13.6 days with some rainfall so you can still enjoy the beach on the majority of days.

More about March temperature and sunshine.

Can you swim in San Mateo County in March?

No, March is too cold for swimming in San Mateo County for any length of time, with the sea water at 15°C (59°F), unless you have a wetsuit.

More about March sea temperatures.

Is March a good time to holiday in San Mateo County?

No, March is not a good time for a holiday in San Mateo County.

March has average maximum temperatures of 14°C (57°F) which is a little too chilly for sunbathing. The sunshine percentage is 69% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright. March has total rainfall of 5.4cm (2.1inches) making it mostly dry with only intermittent light showers. There are only 13.6 days with some rainfall so you can still enjoy the beach on the majority of days. It is not a good time for sunbathing in San Mateo County. Sea temperatures are a cold 15°C (59°F). March is too cold for swimming in San Mateo County for any length of time, unless you have a wetsuit.

More about the March temperatures and sunshine.

Is San Mateo County warm in March?

No, San Mateo County is a little too chilly for sunbathing in March.

The average maximum temperature in San Mateo County in March is 14°C (57°F). The average maximum temperature is 14°C (57°) in the previous month and 14°C (58°F) in the next month.

The average temperature in San Mateo County in March is 10°C (51°F). The average temperature is 10°C (49°F) in the previous month and 11°C (52°F) in the next month.

More info about the March temperatures and sunshine.

How sunny is San Mateo County in March?

The average day light hours per day in San Mateo County in March are 11.9. The sunshine percentage is 69% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright.

More about March sunshine.

Temperature in San Mateo County in March

The weather in March is marginally warmer than the previous month and temperatures continue to rise slightly into April. The average maximum temperature in San Mateo County in March is 14°C (57°F). The average maximum temperature is 14°C (57°F) in the previous month and 14°C (58°F) in the next month.

The average temperature in San Mateo County in March is 10°C (51°F). The average temperature is 10°C (49°F) in the previous month and 11°C (52°F) in the next month.

The average minimum temperature in San Mateo County in March is 7°C (44°F). The minimum temperature is 6°C (43°F) in the previous month and 8°C (46°F) in the next month.

Sunshine in San Mateo County in March

The days in March are much longer than the previous month and the days continue to get a bit longer into April. March has more hours of sunshine than the previous month and hours of sunshine continue to rise quickly into April. During March the average day light hours are 11.9 per day in San Mateo County. The sunshine percentage is 69% making it sunny but overcast at times. The hours of sunshine per day are 8.2hrs making the days long and bright.

The ultraviolet index in San Mateo County in March is typically 6.1 during March. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in San Mateo County in March

The average sea water temperature in San Mateo County in March is 14.8°C (58.6°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.

Rainfall in San Mateo County in March

March weather is slightly wetter than the previous month. March has a few more days of rain than the previous month. The average total rainfall in San Mateo County in March is 5.4cm (2.1inches) and on average there are 13.6 rainy days in March making it a pretty wet time to visit the beach.

Humidity in San Mateo County in March

The maximum dew point (an indicator of humidity) in San Mateo County in March is 10°C (51°F) which is very comfortable. The dew point is 10°C (50°F) in the previous month and 10°C (10°F) in the next month.

The average maximum relative humidity in San Mateo County in March is typically 97.3%. The maximum relative humidity is 97.2% in the previous month and 96.9% in the next month.

The average relative humidity in San Mateo County in March is typically 84.9%. The average relative humidity is 83.6% in the previous month and 84.1% in the next month.

Wind Speed in San Mateo County in March

The average maximum wind speed in San Mateo County in March is typically 28KM/H (18MPH). The average maximum wind speed is 29KM/H (18MPH) in the previous month and 29KM/H (18MPH) in the next month.

The average wind speed in San Mateo County in March is typically 12KM/H (8MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 14KM/H (8MPH) in the next month.

The average wind direction in San Mateo County in March is from the West-Northwest.

Monthly Averages

Suggested Beaches in March

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.