Mexico · 1991–2020 normal
San Francisco in
January.
Typical January weather in San Francisco: 31°C by day, 14.5°C at night, 23 mm of rain over 1.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31°C
Typical low14.5°C
Rain23 mm
Wet days1.3
Comfort score 76 this month, the highest of the year. Daylight is calculated as 10 h 59 from latitude 20.90°. Open-water sea temperature is 25.2°C (5 km from the place centre).
Event window
Warm sea in January
The nearest open-water NOAA OISST 1991–2020 cell averages 25.2°C in January. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 3987135
- NOAA station
- MXN00018080 · SAN MARCOS
- Station distance
- 8.4 km from the place centre
- Coverage
- Good coverage · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.