Mexico · 1991–2020 normal

Santiago Llano Grande in
September.

Typical September weather in Santiago Llano Grande: 31.8°C by day, 21°C at night, 295 mm of rain over 16.3 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high31.8°C
Typical low21°C
Rain295 mm
Wet days16.3

Comfort score 15 this month (January leads the year at 61). Daylight is calculated as 12 h 12 from latitude 16.49°. Open-water sea temperature is 29.9°C (38 km from the place centre).

Event window

Warm sea in September

The nearest open-water NOAA OISST 1991–2020 cell averages 29.9°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 3800368
NOAA station
MXN00012061 · OMETEPEC (CFE)
Station distance
24.7 km from the place centre
Coverage
Good coverage · 19 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.