Mexico · 1991–2020 normal

Los Altos in
September.

Typical September weather in Los Altos: 31.9°C by day, 22°C at night, 253 mm of rain over 11.2 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high31.9°C
Typical low22°C
Rain253 mm
Wet days11.2

Comfort score 24 this month (December leads the year at 96). Daylight is calculated as 12 h 14 from latitude 21.51°. Open-water sea temperature is 29.2°C (18 km from the place centre).

Event window

Warm sea in September

The nearest open-water NOAA OISST 1991–2020 cell averages 29.2°C in September. 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 3524186
NOAA station
MXN00030319 · EL MERCADO
Station distance
15.3 km from the place centre
Coverage
Good coverage · 17 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.