Hot & rainy
The weather
September is the heart of the rainy season — hot, humid days with frequent storms. Daytime highs average 34°C (92°F) and nights 23°C (73°F). The weather station records about 15.6 days with rain and 370 mm of rainfall in the month. The sea in Banderas Bay averages 31°C (89°F), and the sun sets around 19:03.
Rain and temperature, all year
Rain (mm)High (°C)
September 2027
What's on in September 2027
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16 Sep
Independence Day — 'El Grito' celebrations the night of Sept 15Public holiday
Tips for September
- Plan hikes and walking tours for the morning — midday is very hot.
- Keep afternoons flexible and carry a light rain jacket.
- The water is warm (31°C) — long swims and snorkeling without a wetsuit.
- It's within the eastern Pacific hurricane season (May 15 – Nov 30): check the forecast before you travel and prefer flexible bookings.
Tours
Tours worth doing in September
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FAQ
Common questions
What is the weather like in Puerto Vallarta in September?
September is the heart of the rainy season — hot, humid days with frequent storms. Daytime highs average 34°C (92°F) and nights 23°C (73°F). The weather station records about 15.6 days with rain and 370 mm of rainfall in the month. The sea in Banderas Bay averages 31°C (89°F), and the sun sets around 19:03.
Is September a good time to visit Puerto Vallarta?
It depends what you want: September is hot (34°C) and rainy (about 16 days with rain), but the sea is warm (31°C). Most visitors come in the dry season, so it's usually quieter.
How warm is the ocean in Puerto Vallarta in September?
About 31°C (89°F) on average in Banderas Bay (Open-Meteo, 2023–2025).
Is September hurricane season in Puerto Vallarta?
Yes — the eastern Pacific hurricane season runs from May 15 to November 30 (NOAA). Check the forecast close to your trip.