Huatulco Weather in September
September in Huatulco brings high temperatures around 28°C (82°F) during the day, dropping to 22°C (72°F) at night, with the most rainfall of the year.
Rainfall in Huatulco in September
Huatulco is in the rainy season in September, with rain on around 9 days and an average of 692 mm (27 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in Huatulco in September
If you're visiting Huatulco in September, expect highs of 28°C (82°F) and overnight lows around 22°C (72°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.
Sunshine in Huatulco in September
The area enjoys a balanced 153 hours of sunlight, ensuring it's neither too rainy nor too sunny.
Average water temperature in September
The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Huatulco. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Huatulco's climate page.
Huatulco Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
28°C (82°F)
Water Temperature
29°C (84°F)
Chance of Rain
28%
Precipitation
692 mm (27 in)
Rainy days
9 days
Humidity
66%
Sunshine
153 hours
Percentage Sunshine
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Huatulco typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows typically ranging from 22°C (72°F) to 25°C (77°F).
Average temperatures in September
Historical weather for Huatulco in September
Browse day-by-day weather records for Huatulco spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Huatulco historical weather extremes in September
The extremes listed below come from historical weather data collected in Huatulco from 2015 through 2025.
- Huatulco recorded its highest September temperature of 37°C (99°F) on September 4, 2024.
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 12, 2021.
- Nighttime temperatures dropped to 21°C (70°F) on September 26, 2015, marking the coldest September night on record.
- The wettest September day on record brought 230 mm (9.1 in) of precipitation to Huatulco (September 12, 2022).
Best Places in Mexico in September
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Huatulco in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Huatulco in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Huatulco's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Huatulco climate overview or explore weather in Mexico.
