Climate normals · 1970–2000
San Mateo Climate
San Mateo is a city in United States (CA) with a population of about 103,536. Its average annual temperature is 14.4°C (58°F), with roughly 523 mm of rain per year.
14.4°C
Avg Temp
523
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
San Mateo Climate
San Mateo has an average annual temperature of 14.4°C (58°F) and receives about 523 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
14.4°C
Avg Temp
523
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 10° / 49° | 108 mm |
| February | 11° / 53° | 91 mm |
| March | 12° / 54° | 83 mm |
| April | 14° / 56° | 34 mm |
| May | 15° / 60° | 10 mm |
| June | 17° / 63° | 3 mm |
| July | 18° / 65° | 1 mm |
| August | 18° / 65° | 2 mm |
| September | 18° / 65° | 6 mm |
| October | 16° / 61° | 31 mm |
| November | 13° / 55° | 75 mm |
| December | 10° / 50° | 79 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit San Mateo
The most comfortable months to visit San Mateo are typically August, July and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 24°C high). The coldest is January (near 5°C low). January is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit San Mateo are typically August, July and September, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
San Mateo, United States has an average annual temperature of 14.4°C and about 523 mm of precipitation per year. The warmest month is August and the coldest is January.
In August, the hottest month, daily highs in San Mateo average about 24°C (75°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.