Click on a day for an hourly weather forecast
The temperatures in San Mateo in July are comfortable with low of 14°C and and high up to 22°C.
There is little to no rain in San Mateo during July, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in San Mateo in July 2025.
If you’re planning to visit San Mateo in the near future, we highly recommend that you review the 14 day weather forecast for San Mateo before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 9° | 6 | 25 | 0 | 92 mm | Good | San Mateo in January |
| February | 15° / 9° | 5 | 23 | 0 | 82 mm | Good | San Mateo in February |
| March | 16° / 9° | 7 | 24 | 0 | 85 mm | Ok | San Mateo in March |
| April | 17° / 10° | 3 | 27 | 0 | 35 mm | Good | San Mateo in April |
| May | 18° / 11° | 2 | 29 | 0 | 15 mm | Good | San Mateo in May |
| June | 21° / 13° | 1 | 29 | 0 | 4 mm | Good | San Mateo in June |
| July | 22° / 14° | 0 | 31 | 0 | 1 mm | Good | San Mateo in July |
| August | 23° / 15° | 0 | 31 | 0 | 0 mm | Perfect | San Mateo in August |
| September | 23° / 15° | 0 | 30 | 0 | 3 mm | Perfect | San Mateo in September |
| October | 21° / 14° | 2 | 29 | 0 | 28 mm | Good | San Mateo in October |
| November | 17° / 11° | 4 | 26 | 0 | 51 mm | Good | San Mateo in November |
| December | 14° / 9° | 6 | 25 | 0 | 101 mm | Good | San Mateo in December |