What September feels like in Puerto Vallarta
September falls in Puerto Vallarta's wet season — the rainfall numbers rise clearly above the dry months. The midday hours are hot; shade and water matter on long walks. There is little difference between day and night: nights stay warm, and evenings feel much like the afternoon. Thick, humid air means clothes cling and the heat feels stronger than the number.
Rain in Puerto Vallarta in September
September is persistently wet here: some rain falls on most days. Rainy days are intense, averaging about 10.9 mm (0.4 in) — downpours rather than drizzle. That is close to Puerto Vallarta's typical rain per wet day for the whole year (about 9.9 mm). It is among the three wettest months of the year.
How September compares to the rest of the year
In Puerto Vallarta's temperature order, September sits as the 5th warmest month. Afternoons run 0.4°C (0.7°F) cooler than in August, with 21 mm less rain. Temperatures barely move from one month to the next here. October averages a high of 30.4°C (86.7°F).
Who September suits
- Sightseeing: less ideal — rain falls on more than half the days.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.
Tips for visiting Puerto Vallarta in September
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sun Protection
Sunscreen, a hat and sunglasses; light breathable clothes.
Quick questions
How warm is Puerto Vallarta in September?
Afternoons average 30.4°C (86.7°F) and nights about 24.4°C (75.9°F) — hot by most people's standards. It is the 5th warmest month of the year.
Does it rain a lot in Puerto Vallarta in September?
It does: about 26 rainy days bring roughly 284 mm, so plan some indoor options.
What should I wear in Puerto Vallarta in September?
The numbers point to rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.
Is September or October better for visiting Puerto Vallarta?
October scores better on our climate ranking (#9 of 12 vs #11), rated Fair against Fair. October has fewer rainy days.
