Huatulco weather in September 2025

Expect daytime maximum temperatures of 93°F 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 6.9 inches of rainfall in the month.

  • 93°F maximum daytime temperature in September in Huatulco93
    93°F max day temperature
  • 5 hours of sunshine per day
  • 7 days with some rainfall in September in Huatulco7
    7 days with some rainfall
  • 72°F minimum night-time temperature in September in Huatulco72
    72°F 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
  • 6.9 inches monthly rainfall in September in Huatulco6.9
    6.9 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Huatulco11
    11+ (Extreme) UV index
  • 84°F sea temperature in September in Huatulco84
    84°F 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)  |  Imperial (°F)

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How hot is it in Huatulco in September?

Daytime temperatures usually reach 93°F in Huatulco in September with very high heat and humidity, falling to 72°F 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 84°F.

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 6.9 inches.

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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