Manzanillo Weather in September
Thinking of visiting Manzanillo in September? Expect high temperatures reaching 30°C (86°F) during the day, dropping to 26°C (79°F) at night, and be prepared for the wettest month of the year.
Rainfall in Manzanillo in September
Manzanillo is in the rainy season in September, with rain on around 15 days and an average of 315 mm (12 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Manzanillo in September
Temperatures in Manzanillo in September top out at 30°C (86°F) and drop to 26°C (79°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Manzanillo in September
The city usually sees around 190 hours of sunlight, indicating many sunny days despite it being the rainy season.
Average water temperature in September
At 29°C (84°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.September in Manzanillo has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
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 Manzanillo's climate page.
Manzanillo Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F)
Chance of Rain
51%
Precipitation
315 mm (12 in)
Rainy days
15 days
Humidity
77%
Sunshine
190 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Manzanillo typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Manzanillo in September
Browse day-by-day weather records for Manzanillo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Manzanillo historical weather extremes in September
Based on 39 years of weather observations in Manzanillo between 1986 and 2025, these are the recorded extremes.
- On September 17, 1993, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- On September 3, 1995, Manzanillo saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The coldest night in September in Manzanillo was on September 25, 2021, with a minimum of 18°C (64°F).
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 →
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What to Wear in Manzanillo in September
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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Manzanillo 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 Manzanillo's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Manzanillo climate overview or explore weather in Mexico.
