Huatulco weather in September 2025

Expect daytime maximum temperatures of 34°C in Huatulco, Mexico in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 174 mm of rainfall in the month.

  • 34°C maximum daytime temperature in September in Huatulco34
    34°C max day temperature
  • 5 hours of sunshine per day
  • 7 days with some rainfall in September in Huatulco7
    7 days with some rainfall
  • 22°C minimum night-time temperature in September in Huatulco22
    22°C min night temperature
  • 12 hours of daylight per day in September in Huatulco12
    12 hours of daylight per day
  • Very high heat & humidity in September in HuatulcoVH
    Very High heat & humidity
  • 174 mm monthly rainfall in September in Huatulco174
    174 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Huatulco11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Huatulco29
    29°C sea temperature

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The September weather guide for Mexico (Huatulco) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Huatulco in September?

Daytime temperatures usually reach 34°C in Huatulco in September with very high heat and humidity, falling to 22°C at night.

How sunny is it in Huatulco in September?

There are normally 5 hours of bright sunshine each day in Huatulco in September - that's 43% of daylight hours.

How warm is the sea around Huatulco in September?

The average sea temperature around Huatulco in September is 29°C.

Does it rain in Huatulco in September?

There are usually 7 days with some rain in Huatulco in September and the average monthly rainfall is 174mm.

What is the chance of a hurricane in Huatulco in September?

On average less than 1 day in September in Huatulco is likely to be affected by the passage of one or more tropical storms.

Huatulco September sunrise & sunset times

Browse the sunrise and sunset times for Huatulco in September 2025. Select a month to view Huatulco sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:12 18:37
Monday, 15th September 2025 06:13 18:26
Tuesday, 30th September 2025 06:14 18:14

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