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Cayo (San Ignacio)
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Weather in Cayo for September 2025

Your guide to Cayo weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Cayo has been nearly identical to the historical average, with a temperature of 32.7 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the next days in Cayo predicts temperatures to be around 32 °C, close to the historical average.

  • In general, the average temperature in Cayo at the beginning of September is 34.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 33.6 °C by the end of September.

    • Rain 🌧️

  • Cayo experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 117.8 mm.

Average dry days
7
Dry days
Average rainy days
23
Rainy days
Average snowy days
0
Snow days
Average temperatures
33°/22°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Cayo Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Fog
35°
2
Fog
34°
3
Fog
35°
4
Fog
34°
5
Patchy rain possible
35°
6
Moderate rain
32°
7
Fog
34°
8
Patchy light rain with thunder
32°
9
Patchy light rain with thunder
33°
10
Fog
32°
11
Fog
31°
12
Fog
30°
13
Fog
32°
14
Mist
33°
15
Mist
32°
16
Moderate rain
27°
17
Moderate rain
27°
18
Patchy rain possible
33°
19
Patchy rain possible
32°
20
Patchy rain possible
28°
21
Patchy rain possible
30°
22
Patchy rain possible
34°
23
Patchy rain possible
35°
24
Patchy rain possible
32°
25
Patchy rain possible
32°
26
Patchy rain possible
32°
27
Sunny
35°
28
Patchy rain possible
35°
29
Patchy rain possible
36°
30
Light rain shower
33°

Temperatures trend during September in Cayo

See the weather trend as well as the moving average line

September weather in Cayo day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Fog
Fog
 35° /22° 1.1 mm 8
2 Sept. Fog
Fog
 34° /21° 1.2 mm 7
3 Sept. Fog
Fog
 35° /21° 1 mm 8
4 Sept. Fog
Fog
 34° /21° 2.5 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 35° /21° 0.4 mm 8
6 Sept. Moderate rain
Moderate rain
 32° /22° 10.7 mm 7
7 Sept. Fog
Fog
 34° /21° 6.6 mm 7
8 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 32° /21° 5.5 mm 7
9 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 33° /21° 8 mm 7
10 Sept. Fog
Fog
 32° /21° 6.2 mm 7
11 Sept. Fog
Fog
 31° /21° 6.4 mm 7
12 Sept. Fog
Fog
 30° /21° 5.1 mm 7
13 Sept. Fog
Fog
 32° /21° 2.2 mm 7
14 Sept. Mist
Mist
 33° /21° 0.7 mm 7
15 Sept. Mist
Mist
 32° /21° 2.4 mm 7
16 Sept. Moderate rain
Moderate rain
 27° /22° 8.9 mm 0.8
17 Sept. Moderate rain
Moderate rain
 27° /21° 10.1 mm 0.7
18 Sept. Patchy rain possible
Patchy rain possible
 33° /21° 0.3 mm 2.4
19 Sept. Patchy rain possible
Patchy rain possible
 32° /21° 3.5 mm 2.5
20 Sept. Patchy rain possible
Patchy rain possible
 28° /22° 3.5 mm 0
21 Sept. Patchy rain possible
Patchy rain possible
 30° /21° 1.2 mm 5
22 Sept. Patchy rain possible
Patchy rain possible
 34° /21° 0.1 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 35° /22° 0.2 mm 6
24 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 1.1 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 4.1 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
 32° /21° 0.3 mm 6
27 Sept. Sunny
Sunny
 35° /21° 0 mm 7
28 Sept. Patchy rain possible
Patchy rain possible
 35° /22° 0.1 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 36° /22° 1.7 mm 6
30 Sept. Light rain shower
Light rain shower
 33° /21° 5.6 mm 7
Next
Important Notice
Our weather forecast for Cayo 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 Cayo forecast closer to your planned date for the most up-to-date weather information.
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Cayo in September - FAQ

What are the expected maximum and minimum temperatures in Cayo during September?
During September, expect a variety of temperatures with highs around 33° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Cayo during September?
Significant rainfall exceeding 117.8 mm is expected in Cayo during September, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cayo during September?
The average wind speed in Cayo during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Cayo

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

UV exposure in Cayo during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Cayo?

Get accurate weather forecasts for Cayo, located at latitude 17.159 and longitude -89.07. Stay updated with localized weather information tailored for Cayo.

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