San Mateo, CA weather in March
March in San Mateo: cool, with frequent rain. Highs 63°F, lows 48°F, about 10 days with rain.
- Normal high
- 63°F
- Normal low
- 48°F
- Wet days
- 10
- 2.7 in total
- Muggy days
- 0
- dew point 65°F+
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 62°F | 64°F |
| Normal low | 47°F | 48°F |
| Chance of a wet day | 37% | 29% |
| Sunrise / sunset | 6:40 am / 6:02 pm | 6:56 am / 7:30 pm |
| Daylight | 11.4 h | 12.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical March day
- 6 am50°Fdew point 45°F
- 9 am54°Fdew point 47°F
- Noon59°Fdew point 47°F
- 3 pm60°Fdew point 46°F
- 6 pm56°Fdew point 46°F
- 9 pm53°Fdew point 46°F
NOAA hourly normals (local standard time) from San Francisco Intl Airport (5 mi away); average wind 10 mph; clear or few clouds in 31% of daytime hours, mostly cloudy or overcast in 52%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F9 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain in March
Normal precipitation is 2.7 in; a dry March brings about 1.1 in and a wet one about 4.0 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How March varies from year to year
- Warmest March, 1991-20202015: average high 69°F
- Coolest March1999: average high 57°F
- Wettest March1995: 8.8 in
- Driest March2015: 0.06 in
- Highest reading83°F (March 14, 2015)
- Lowest reading37°F (March 11, 2006)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 61°F | 63°F | 66°F |
| Normal low | 46°F | 48°F | 49°F |
| Wet days | 11 | 10 | 6 |
| Comfortable days | 5 | 9 | 12 |
| Daylight | 10.8 h | 12.0 h | 13.2 h |
Highs change by +2°F from February and +3°F into April.
Nearby alternatives in March
- Warmer: Tracy, CA51 mi · high 69°F · 8 wet days
- Drier: Fresno, CA151 mi · high 68°F · 7 wet days
- Cooler: Yosemite Valley, CA151 mi · high 57°F · 11 wet days
How San Mateo ranks in March
- Normal high172nd warmest of 378 cities; 53rd of 60 in California
- Wet days239th driest of 378
- Comfortable days167th most of 339
What to pack for San Mateo in March
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
March has 296 heating degree days and 1 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How cold is San Mateo in March?
The normal high is 63°F and the normal low is 48°F. From 1991 to 2020 the coldest March reading was 37°F (March 11, 2006).
Does it rain a lot in San Mateo in March?
About 10 days in March have at least 0.01 in of precipitation, and the normal total is 2.7 in. The wettest March in 1991-2020 was in 1995 (8.8 in); the driest was in 2015 (0.06 in).
Is March a good time to visit San Mateo?
March ranks 8th of 12 months on our comfort score for San Mateo (59 out of 100). It has about 9 comfortable days. The best months are July and August.
Where the numbers come from
- Temperature, rain, frost dates, humidity and wind by hour and cloud cover: San Francisco Intl Airport (USW00023234), 4.5 mi NNW of the city center, 8 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Redwood City (USC00047339), 7.6 mi SE of the city center, 31 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: San Francisco International Airport (724940-23234), 4.5 mi NNW of the city center, 10 ft . Hourly observations, 1991-2020.