This month in Cancun
Cancun Weather in September
September means 6.32 inches of rain for Cancun Hotel Zone, Quintana Roo, Mexico. Average daytime maximum: 86.1°F; overnight minimum: 79.9°F. American through Dallas and Austin was lowest from Omaha for September 11 to 18 at $615. Sunrise 6:34 am, sunset 6:50 pm on September 15, so 12.3 hours of light, and Cancun keeps Omaha time in September. The sampled Omaha round trip was $615.
Photo: Israel Torres / Pexels
High / low
86° / 80°F
Rain
6.3 in
for the month
Humidity
82%
Wind
6 mph
Hurricane season
In season
Fare from OMA
$615
Sep 11, 2027–Sep 18, 2027
Verdict
September in Cancun: 6.32 in rain, 86.1°F average high; peak hurricane window.
Rule: rain, comfort band and hurricane timing, explained on the method page.
vs last / next month
- vs August: 1°F cooler, 1.7 in wetter, 2 pts more humid
- vs October: 2°F warmer, 2 in drier
- September sky: 57.6% cloud, 5.55 kWh/m²/day solar. August: 52.4% / 6.29; October: 57.6% / 4.73 (NASA).
- 2027-09-15: sunrise 06:34, sunset 18:50; 12.27 hours of light, changing -36 minutes across September. August daylight: 12.86 hours; October: 11.67. Omaha clock offset: 0 hours.
- September water: 84.8°F (NOAA 2015–2024). August water: 84.7°F; October: 84.4°F. Dew point: 76.3°F in September, 76.3°F in August, 74.7°F in October (NASA 2001–2025).
- Fares: September's $615 search result is up $208 on August's $407; October has no fare yet because schedules were not open.
NASA POWER 2001–2025 means, Cancun Hotel Zone, Quintana Roo, Mexico.
Holidays & events
- On the Cancun calendar for September (Mexico's federal labor law (LFT art. 74 via PROFEDET)): Independence Day on September 16. On the Omaha side, Labor Day on September 6 is US federal holiday (OPM), which moves demand on flights out of Nebraska, not the destination. September crowd levels: no source, so left out.
Pack for September (rule shown)
- Packable rain jacketrain 6.3 in > 3 in
- Quick-dry shoes, not just sandalsrain 6.3 in > 6 in
- Breathable fabrics, extra topshumidity 82% ≥ 80%
- Travel insurance confirmation and the resort's weather policyinside hurricane season
- A rash guard plus reef-safe sunscreenSeptember solar energy 5.55 kWh per square meter a day, over our 5.0 line; NASA's daily-mean UV index (2.09) is not the midday 8+ scale.
- Breathable fabrics onlySeptember dew point 76°F, over our 75°F muggy line.
Flight detail, OMA to CUN
$615
American, 2 stops via DFW/AUS, 17h 53m out. 32 itineraries. Observed Oct 31, 2026; not a quote.
Guide, sources and the 12-month table: Cancun.
September questions
Cancun weather: September or the months beside it?
What is the sea temperature in Cancun in September?
Sources: ignav.com · nhc.noaa.gov · optics.marine.usf.edu · gob.mx · power.larc.nasa.gov · coastwatch.pfeg.noaa.gov · opm.gov · travel.state.gov · travel.state.gov · power.larc.nasa.gov
From Ann
September in Cancun, priced for your week.
Considering September in Cancun? Share your dates and budget. Ann checks OMA–CUN flights and places to stay against this 6.32 in rain / 86.1°F climate record.
Photo: Israel Torres / Pexels