Mexico's Caribbean Coast weather in September 2025

Q: How hot is it in Mexico's Caribbean Coast in September?

Daytime temperatures usually reach 32°C in Cancun, Mexico's Caribbean Coast in September with very high heat and humidity, falling to 23°C at night.

Q: How sunny is it in Mexico's Caribbean Coast in September?

There are normally 6 hours of bright sunshine each day in Cancun, Mexico's Caribbean Coast in September - that's 51% of daylight hours.

Q: How warm is the sea around Mexico's Caribbean Coast in September?

The average sea temperature around Cancun, Mexico's Caribbean Coast in September is 29°C.

Q: Does it rain in Mexico's Caribbean Coast in September?

There are usually 14 days with some rain in Cancun, Mexico's Caribbean Coast in September and the average monthly rainfall is 229mm.

Q: What is the chance of a hurricane in Mexico's Caribbean Coast in September?

On average 1.2 days in September in Cancun, Mexico's Caribbean Coast are likely to be affected by the passage of one or more tropical storms.

Expect 90°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Mexico's Caribbean Coast in September. Check more long-term weather averages for Mexico's Caribbean Coast in September before you book your next holiday to Mexico's Caribbean Coast in 2025/2026.

90
90°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
73
73°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
9.0
9.0 inches of monthly rainfall
11
11 (Extreme) UV index
84
84°F sea temperature

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Destination

The September weather guide for Mexico's Caribbean Coast (Cancun) 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.

Top Mexico's Caribbean Coast destinations

Below are average maximum temperatures at popular countries, regions and places in Mexico - Caribbean Coast in September. Select a holiday destination to see more weather parameters.

All Mexico - Caribbean Coast destinations

Metric (°C) | Imperial (°F)

More about Mexico's Caribbean Coast

How hot is it in Mexico's Caribbean Coast in September?

Daytime temperatures usually reach 90°F in Cancun, Mexico's Caribbean Coast in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Mexico's Caribbean Coast in September?

There are normally 6 hours of bright sunshine each day in Cancun, Mexico's Caribbean Coast in September - that's 51% of daylight hours.

How warm is the sea around Mexico's Caribbean Coast in September?

The average sea temperature around Cancun, Mexico's Caribbean Coast in September is 84°F.

Does it rain in Mexico's Caribbean Coast in September?

There are usually 14 days with some rain in Cancun, Mexico's Caribbean Coast in September and the average monthly rainfall is 9.0 inches.

What is the chance of a hurricane in Mexico's Caribbean Coast in September?

On average 1.2 days in September in Cancun, Mexico's Caribbean Coast are likely to be affected by the passage of one or more tropical storms.

Mexico's Caribbean Coast September sunrise & sunset times

Browse the sunrise and sunset times for Mexico's Caribbean Coast in September 2025. Select a month to view Mexico's Caribbean Coast sunrise and sunset times for the next 12 months. The Mexico's Caribbean Coast sunrise and sunset times shown below are for Cancun.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	06:31	19:03
Monday, 15th September 2025	06:35	18:50
Tuesday, 30th September 2025	06:38	18:36

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Caribbean Coast, Mexico - quick facts
Flight time^✝	10.5 hours
Time difference	UK -5 hours
Language(s)	Spanish
Currency	Mexican Peso
Electricity	A + B plug (127V)
Driving side	Right
Why visit?	Beaches Nature Nightlife
Tourist info	Quintana Roo Tourism Promotion Board