The weather in Nuevo Vallarta in September is hot. The average temperatures are between 21°C and 31°C.
There’s going to be many days of rain during the month of September in Nuevo Vallarta.
Nuevo Vallarta should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Nuevo Vallarta in September 2026.
If you’re planning to visit Nuevo Vallarta in the near future, we highly recommend that you review the 14 day weather forecast for Nuevo Vallarta before you arrive.
Temperatures
31° / 21°
Rainy Days
19
Snowy Days
0
Dry Days
11
Rainfall
383
mm
Sun Hours
6.8
Hrs
