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Weather in Cancún for September 2025

Your guide to Cancún weather in September - trends and predictions
  • In general, the average temperature in Cancún at the beginning of September is 31 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 30.1 °C by the end of September.

  • Cancún experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.

  • Is September a good time to visit Cancún? check out the best time to travel to Cancún page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
9
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/26°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Cancún in September average weather

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Temperatures trend during September in Cancún

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Fog
Fog
30° /26° 3.8 mm 7
2 Sept. Patchy rain possible
Patchy rain possible
31° /26° 4.7 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
31° /26° 6.4 mm 7
4 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
31° /26° 5.2 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
32° /26° 0.5 mm 8
6 Sept. Fog
Fog
32° /26° 1.4 mm 7
7 Sept. Patchy rain possible
Patchy rain possible
30° /26° 3 mm 7
8 Sept. Patchy light rain with thunder
Patchy light rain with thunder
30° /26° 6.1 mm 7
9 Sept. Patchy rain possible
Patchy rain possible
31° /26° 3.5 mm 7
10 Sept. Light rain shower
Light rain shower
31° /26° 3.5 mm 7
11 Sept. Patchy rain possible
Patchy rain possible
33° /26° 0.3 mm 7
12 Sept. Cloudy
Cloudy
32° /26° 0 mm 7
13 Sept. Overcast
Overcast
32° /27° 0 mm 7
14 Sept. Partly cloudy
Partly cloudy
32° /26° 0.3 mm 8
15 Sept. Partly cloudy
Partly cloudy
32° /26° 0.1 mm 8
16 Sept. Patchy rain possible
Patchy rain possible
32° /26° 0.4 mm 7
17 Sept. Patchy rain possible
Patchy rain possible
31° /26° 29.1 mm 7
18 Sept. Partly cloudy
Partly cloudy
31° /26° 2 mm 8
19 Sept. Partly cloudy
Partly cloudy
31° /26° 0 mm 8
20 Sept. Patchy rain possible
Patchy rain possible
31° /26° 18.5 mm 7
21 Sept. Patchy rain possible
Patchy rain possible
30° /26° 9.6 mm 7
22 Sept. Moderate rain at times
Moderate rain at times
32° /26° 2.8 mm 7
23 Sept. Patchy light drizzle
Patchy light drizzle
31° /26° 0.7 mm 7
24 Sept. Patchy light rain with thunder
Patchy light rain with thunder
30° /25° 14.6 mm 7
25 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
28° /24° 292.8 mm 7
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
32° /26° 28.4 mm 7
27 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
30° /25° 23 mm 7
28 Sept. Light rain shower
Light rain shower
31° /26° 3.7 mm 8
29 Sept. Light rain shower
Light rain shower
30° /26° 5.9 mm 8
30 Sept. Light rain shower
Light rain shower
30° /26° 18.2 mm 7
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Important Notice
Our weather forecast for Cancún in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cancún forecast closer to your planned date for the most up-to-date weather information.

Cancún in September - FAQ

What are the expected maximum and minimum temperatures in Cancún during September?
During September, expect a variety of temperatures with highs around 31° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Cancún during September?
Significant rainfall exceeding 126.6 mm is expected in Cancún during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cancún during September?
The average wind speed in Cancún during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Cancún in September?

As you prepare for your trip to Cancún in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Cancún, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
    • Insect Repellent: For destinations with mosquitos or other insects

September rainfall patterns in Cancún

Explore the daily rainfall trends and prepare for Cancúns September weather 💧

UV exposure in Cancún during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Cancún?

Get accurate weather forecasts for Cancún, located at latitude 21.174 and longitude -86.847. Stay updated with localized weather information tailored for Cancún.

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