Weather & travel · verified 2026-10-02
Holbox in September: weather, crowds & prices
Typical highs 32°C / 90°F, lows 25°C / 77°F, sea 29°C. Expect 180 mm of rain across 12 rainy days, afternoon winds of 14 km/h. Crowds are low; rates are lowest prices.
September by the numbers
Temperature
32° / 25°C
90° / 77°F
Sea surface
29°C
84°F
Rainfall
180 mm
~12 rain days
Humidity
82%
afternoon avg
Wind
14 km/h
afternoon avg
Crowds
Low
Island feels empty
Prices
Lowest prices
~40% below peak
Hurricane risk
Elevated
Travel insurance required
Pros
- Lowest prices of the year — ~40% below January rates
- Last whale shark tours (season closes Sep 15)
- Island quietest — great for genuine locals-only vibe
- Biolum often at its best (warm water, limited moonless windows)
Cons
- Highest hurricane risk of the year
- Heaviest rainfall month
- Many businesses close for annual maintenance (Sep 1-30)
- Flooding on some streets after sustained rain
Insider tip
Flexible travelers and locals swear by late September — if a storm doesn't hit, you get an empty paradise at half price. Travel insurance is non-negotiable.
What’s active in September
Whale sharks
Closing
Bioluminescence
Peak nights
Sargassum pressure
Heavy
Kitesurfing wind
Light
FAQ
- Is September a good month to visit Isla Holbox?
- Lowest prices of the year — ~40% below January rates Last whale shark tours (season closes Sep 15) Downsides: highest hurricane risk of the year and heaviest rainfall month.
- What's the weather like on Holbox in September?
- Typical highs around 32°C (90°F), lows around 25°C (77°F). Sea surface temperature averages 29°C. Expect roughly 180mm of rainfall across 12 rain days, and afternoon winds around 14 km/h. Humidity sits near 82%.
- What are prices and crowds like in September?
- Low crowds with lowest prices. Great value — walk-ups common, direct bookings often negotiable for a discount.
- Can I see whale sharks in September?
- Season closes September 15 — early-month tours only, and sightings taper.
- What about bioluminescence in September?
- Yes — some of the best biolum nights of the year on dark-moon windows. Check /bioluminescence for your specific dates.
See also: 7-day live forecast · Sargassum today · Whale shark season · Bioluminescence tonight