Weather in Cancún for September 2025
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.
Cancún in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 30° | 2 31° | 3 31° | 4 31° | 5 32° | 6 32° | 7 30° |
8 30° | 9 31° | 10 31° | 11 33° | 12 32° | 13 32° | 14 32° |
15 32° | 16 32° | 17 31° | 18 31° | 19 31° | 20 31° | 21 30° |
22 32° | 23 31° | 24 30° | 25 28° | 26 32° | 27 30° | 28 31° |
29 30° | 30 30° |
You can click on date
Temperatures trend during September in Cancún
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Fog | 30° /26° | 3.8 mm | 7 | |
2 Sept. | Patchy rain possible | 31° /26° | 4.7 mm | 7 | |
3 Sept. | Patchy rain possible | 31° /26° | 6.4 mm | 7 | |
4 Sept. | Moderate or heavy rain shower | 31° /26° | 5.2 mm | 7 | |
5 Sept. | Patchy rain possible | 32° /26° | 0.5 mm | 8 | |
6 Sept. | Fog | 32° /26° | 1.4 mm | 7 | |
7 Sept. | Patchy rain possible | 30° /26° | 3 mm | 7 | |
8 Sept. | Patchy light rain with thunder | 30° /26° | 6.1 mm | 7 | |
9 Sept. | Patchy rain possible | 31° /26° | 3.5 mm | 7 | |
10 Sept. | Light rain shower | 31° /26° | 3.5 mm | 7 | |
11 Sept. | Patchy rain possible | 33° /26° | 0.3 mm | 7 | |
12 Sept. | Cloudy | 32° /26° | 0 mm | 7 | |
13 Sept. | Overcast | 32° /27° | 0 mm | 7 | |
14 Sept. | Partly cloudy | 32° /26° | 0.3 mm | 8 | |
15 Sept. | Partly cloudy | 32° /26° | 0.1 mm | 8 | |
16 Sept. | Patchy rain possible | 32° /26° | 0.4 mm | 7 | |
17 Sept. | Patchy rain possible | 31° /26° | 29.1 mm | 7 | |
18 Sept. | Partly cloudy | 31° /26° | 2 mm | 8 | |
19 Sept. | Partly cloudy | 31° /26° | 0 mm | 8 | |
20 Sept. | Patchy rain possible | 31° /26° | 18.5 mm | 7 | |
21 Sept. | Patchy rain possible | 30° /26° | 9.6 mm | 7 | |
22 Sept. | Moderate rain at times | 32° /26° | 2.8 mm | 7 | |
23 Sept. | Patchy light drizzle | 31° /26° | 0.7 mm | 7 | |
24 Sept. | Patchy light rain with thunder | 30° /25° | 14.6 mm | 7 | |
25 Sept. | Moderate or heavy rain shower | 28° /24° | 292.8 mm | 7 | |
26 Sept. | Moderate or heavy rain shower | 32° /26° | 28.4 mm | 7 | |
27 Sept. | Moderate or heavy rain shower | 30° /25° | 23 mm | 7 | |
28 Sept. | Light rain shower | 31° /26° | 3.7 mm | 8 | |
29 Sept. | Light rain shower | 30° /26° | 5.9 mm | 8 | |
30 Sept. | Light rain shower | 30° /26° | 18.2 mm | 7 | |
Next |
Cancún in September - FAQ
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
Quick links
Get accurate weather forecasts for Cancún, located at latitude 21.174 and longitude -86.847. Stay updated with localized weather information tailored for Cancún.