September in Santa Cruz Huatulco brings high temperatures, with daytime highs of 29°C (84°F) and nights around 25°C (77°F). It's also the wettest month of the year, so an umbrella is a must.
September in Santa Cruz Huatulco can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Min Temperature
Max Temperature
Water Temperature
Chance of Rain
Precipitation
Rainy days
Humidity
Sunshine
Percentage Sunshine
Pick a month to see the average temperature, rainfall and sunshine in Santa Cruz Huatulco - and find the best time to visit.
47-year average (1976-2025)
Based on our historical records, temperatures in Santa Cruz Huatulco typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows typically ranging from 22°C (72°F) to 25°C (77°F).
Browse day-by-day weather records for Santa Cruz Huatulco spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 10 years of weather observations in Santa Cruz Huatulco between 2015 and 2025, these are the recorded extremes.
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 is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. 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. Bring sunglasses since you'll have some sunny periods throughout the month
Temperature Rainfall Sunshine Humidity Water Temp
See the full Santa Cruz Huatulco climate overview or explore weather in Mexico.
Where to go in September - average daytime high across popular destinations.
Puerto Peñasco
34°C (93°F) Los Cabos
32°C (90°F) Tulum31°C (88°F) Cancún30°C (86°F) Playa del Carmen31°C (88°F) Puerto Vallarta29°C (84°F) San Miguel de Allende
27°C (81°F) Mexico City23°C (73°F) Need travel inspiration? Check out our bucket list articles and be inspired.
An oasis nestled right on the edge of Huatulco National Park
The Huatulco National Park is absolutely stunning. This area is known to be a truly eco tourist hot spot and right on the edge of this National Park we found an oasis called Las Palmas.
Explore the Majestic Copper Canyons of Mexico
Explore the vast Copper Canyons in Chihuahua, Mexico—larger than the Grand Canyon. Discover scenic train rides, hikes, and the Tarahumara people.
These are the most beautiful Mayan ruins and Mayan temples in Mexico
Mexico is a destination where you can immerse yourself in ancient cultures and civilizations. In this article we have listed our favorite Mayan ruins.
Tips, to-do's and nicest restaurants in Mexico City
Mexico City, one of the most famous and notorious cities of the world. The best time to visit is between March and May, but it can be visited year round.
