September · Mexico
Best time to visit Huatulco in September Weather, crowds & prices
Weather in Huatulco in September
Average temperature 22°C, 216 mm of rain, about 20 days with 6+ hours of sunshine and 83% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.6/10
Ranked #12 of 12 months
- Avg temp
- 22°C
- Rainfall
- 216 mm
- Humidity
- 83%
- Days with 6h+ sun
- 20
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Huatulco scores 6.6/10 for beach and coastal travel - ranked #12 of 12. Expect around 22°C, 216 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Huatulco scatters resort bays along Oaxaca’s coast-clear Pacific coves and quieter beaches than Acapulco. Best window: the drier months outside peak monsoon.
September in Huatulco — workable with trade-offs
With 22°C (72°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
This is the year's wettest stretch at 216 mm, but with about 20 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 6.6/10 on the same scale — 12th of 12 months, versus 10/10 for the best month here.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, April is materially better in Huatulco — 3.4 points higher on the same scale.
Frequently asked
- What is the weather like in Huatulco in September?
- In September, Huatulco averages 22°C, 216 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 6.6/10.
- Is September a good time to visit Huatulco?
- September earns a 6.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Huatulco in September?
- Expect about 216 mm of rain in September. Average humidity is 83% and there are about 20 days with 6+ hours of sunshine.
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