When to go · San Mateo
San Mateo, month by month
The best months for San Mateo: Apr, May, Jun, Sep, Oct. Months to avoid: Jan, Feb, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Dec–Feb (rain), and any week with a major SFO travel crunch.14 °C / 6 °C, 11 rain days57 °F / 43 °F, 11 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Dec–Feb (rain), and any week with a major SFO travel crunch.16 °C / 7 °C, 10 rain days61 °F / 45 °F, 10 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Apr–Jun, Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.17 °C / 8 °C, 10 rain days63 °F / 46 °F, 10 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatInside San Mateo's best window: Apr–Jun, Sep–Oct.19 °C / 9 °C, 6 rain days66 °F / 48 °F, 6 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside San Mateo's best window: Apr–Jun, Sep–Oct.21 °C / 11 °C, 4 rain days70 °F / 52 °F, 4 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside San Mateo's best window: Apr–Jun, Sep–Oct.23 °C / 12 °C, 2 rain days73 °F / 54 °F, 2 rain daysCrowds: High
- JulyMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Peak season: parks full, 4 July crowds, 40 °C+ in the desert, humid East. Alaska and the Pacific Northwest are at their best.Outside the best window (Apr–Jun, Sep–Oct). Across United States: Peak season: parks full, 4 July crowds, 104 °F+ in the desert, humid East. Alaska and the Pacific Northwest are at their best.24 °C / 13 °C, 1 rain days75 °F / 55 °F, 1 rain daysCrowds: High · 1 festival or holiday
- AugustMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.24 °C / 13 °C, 1 rain days75 °F / 55 °F, 1 rain daysCrowds: High
- SeptemberGreatInside San Mateo's best window: Apr–Jun, Sep–Oct.25 °C / 13 °C, 2 rain days77 °F / 55 °F, 2 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside San Mateo's best window: Apr–Jun, Sep–Oct.23 °C / 11 °C, 4 rain days73 °F / 52 °F, 4 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Apr–Jun, Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.18 °C / 8 °C, 8 rain days64 °F / 46 °F, 8 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Dec–Feb (rain), and any week with a major SFO travel crunch.14 °C / 6 °C, 11 rain days57 °F / 43 °F, 11 rain daysCrowds: High · 1 festival or holiday