Climate of San Mateo, California, USA
Point-value climate at San Mateo (California, United States of America). Population approximately 626,406.
Located in California, United States of America, San Mateo has a seasonal climate. Population approximately 626,406. Monthly average temperatures range from 9.7°C / 49.5°F in January to 18.2°C / 64.8°F in August, with rainfall varying from 2 mm / 0.1 in (July) to 121 mm / 4.8 in (January) — about 587 mm / 23.1 in across the year. These are point-value climate normals sampled at San Mateo's coordinates — often quite different from the surrounding region's area-weighted average.
Best sunny months: May, June, July, August, September, October.
Best time to visit San Mateo →
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 9.7°C49.5°F | 121 mm4.8″ | — |
| February | 11.1°C52°F | 100 mm3.9″ | — |
| March | 11.9°C53.4°F | 92 mm3.6″ | — |
| April | 13.2°C55.8°F | 39 mm1.5″ | — |
| May | 14.8°C58.6°F | 11 mm0.4″ | Sunny & Mild |
| June | 16.7°C62.1°F | 4 mm0.2″ | Sunny & Mild |
| July | 17.8°C64°F | 2 mm0.1″ | Sunny & Mild |
| August | 18.2°C64.8°F | 3 mm0.1″ | Sunny & Mild |
| September | 18.1°C64.6°F | 7 mm0.3″ | Sunny & Mild |
| October | 16°C60.8°F | 34 mm1.3″ | Sunny & Mild |
| November | 12.5°C54.5°F | 84 mm3.3″ | — |
| December | 9.8°C49.6°F | 90 mm3.5″ | — |
Frequently asked questions
What is the best time to visit San Mateo?
The months with the sunniest, driest weather are May, June, July, August, September, October. San Mateo's warmest month is August at an average of 18.2°C / 64.8°F, and its driest month is July with about 2 mm / 0.1 in of rain.
What is the climate of San Mateo?
San Mateo, in California, United States of America, has monthly average temperatures ranging from 9.7°C / 49.5°F in January to 18.2°C / 64.8°F in August. Annual rainfall is approximately 587 mm / 23.1 in, with the wettest month being January (121 mm / 4.8 in) and the driest July (2 mm / 0.1 in).
What is the average temperature in San Mateo in August?
The average temperature in San Mateo in August is 18.2°C / 64.8°F, with rainfall of about 3 mm / 0.1 in — the warmest month of the year.
When is the driest month in San Mateo?
The driest month in San Mateo is July, with about 2 mm / 0.1 in of average monthly rainfall. Average temperature that month is 17.8°C / 64°F.
When is the wettest month in San Mateo?
The wettest month in San Mateo is January, with approximately 121 mm / 4.8 in of average monthly rainfall.