Mexico · 1991–2020 normal
La Unión in
September.
Typical September weather in La Unión: 31.9°C by day, 23.2°C at night, 247 mm of rain over 12.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.9°C
Typical low23.2°C
Rain247 mm
Wet days12.6
Comfort score 21 this month (March leads the year at 65). Daylight is calculated as 12 h 13 from latitude 17.99°. Open-water sea temperature is 29.8°C (14 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 29.8°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 3998919
- NOAA station
- MXN00012052 · LA UNION
- Station distance
- 8.1 km from the place centre
- Coverage
- Good coverage · 20 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.