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Weather in Mayagüez for September 2025

Your guide to Mayagüez weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Mayagüez has been nearly identical to the historical average, with a temperature of 30.2 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the next days in Mayagüez predicts temperatures to be around 30 °C, close to the historical average.

  • In general, the average temperature in Mayagüez at the beginning of September is 30.6 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 30.7 °C by the end of September.

    • Rain 🌧️

  • Mayagüez experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 473.3 mm.

Average dry days
2
Dry days
Average rainy days
28
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/25°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Mayagüez Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Heavy rain at times
32°
2
Moderate or heavy rain shower
30°
3
Moderate rain at times
31°
4
Moderate rain at times
31°
5
Moderate or heavy rain shower
30°
6
Heavy rain at times
31°
7
Moderate or heavy rain shower
29°
8
Moderate or heavy rain shower
31°
9
Moderate or heavy rain shower
30°
10
Moderate or heavy rain shower
30°
11
Moderate or heavy rain shower
30°
12
Moderate or heavy rain shower
31°
13
Moderate rain
31°
14
Heavy rain
32°
15
Overcast
28°
16
Moderate rain
31°
17
Moderate rain
30°
18
Moderate rain
30°
19
Patchy rain possible
30°
20
Patchy rain possible
30°
21
Patchy rain possible
29°
22
Moderate rain
29°
23
Patchy rain possible
29°
24
Patchy rain possible
28°
25
Patchy rain possible
31°
26
Patchy rain possible
31°
27
Moderate or heavy rain shower
32°
28
Moderate or heavy rain shower
31°
29
Moderate or heavy rain shower
31°
30
Heavy rain
31°

Temperatures trend during September in Mayagüez

See the weather trend as well as the moving average line

September weather in Mayagüez day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Heavy rain at times
Heavy rain at times
 32° /25° 1.4 mm 8
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /25° 86.3 mm 7
3 Sept. Moderate rain at times
Moderate rain at times
 31° /25° 27.2 mm 7
4 Sept. Moderate rain at times
Moderate rain at times
 31° /24° 103.7 mm 7
5 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /24° 21.1 mm 7
6 Sept. Heavy rain at times
Heavy rain at times
 31° /25° 59.7 mm 7
7 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /25° 89.7 mm 6
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /24° 25.1 mm 7
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /24° 17.1 mm 7
10 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /24° 18 mm 7
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /24° 11 mm 7
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /26° 5.4 mm 7
13 Sept. Moderate rain
Moderate rain
 31° /25° 11 mm 2.6
14 Sept. Heavy rain
Heavy rain
 32° /25° 242.1 mm 2.5
15 Sept. Overcast
Overcast
 28° /24° 0 mm 2.7
16 Sept. Moderate rain
Moderate rain
 31° /24° 14 mm 2.4
17 Sept. Moderate rain
Moderate rain
 30° /26° 12.2 mm 0.2
18 Sept. Moderate rain
Moderate rain
 30° /25° 5.9 mm 6
19 Sept. Patchy rain possible
Patchy rain possible
 30° /25° 1.6 mm 6
20 Sept. Patchy rain possible
Patchy rain possible
 30° /26° 0.2 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 29° /26° 2.6 mm 6
22 Sept. Moderate rain
Moderate rain
 29° /26° 5.4 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 29° /25° 2 mm 6
24 Sept. Patchy rain possible
Patchy rain possible
 28° /25° 0.7 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 31° /25° 0.4 mm 6
26 Sept. Patchy rain possible
Patchy rain possible
 31° /25° 0.4 mm 6
27 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 32° /25° 21.6 mm 7
28 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /25° 20.2 mm 7
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /25° 21.4 mm 7
30 Sept. Heavy rain
Heavy rain
 31° /24° 31.7 mm 7
Next
Important Notice
Our weather forecast for Mayagüez 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 Mayagüez forecast closer to your planned date for the most up-to-date weather information.
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Mayagüez in September - FAQ

What are the expected maximum and minimum temperatures in Mayagüez during September?
During September, expect a variety of temperatures with highs around 31° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Mayagüez during September?
Significant rainfall exceeding 473.3 mm is expected in Mayagüez during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Mayagüez during September?
The average wind speed in Mayagüez during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Mayagüez

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

UV exposure in Mayagüez during September

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

Get accurate weather forecasts for Mayagüez, located at latitude 18.201 and longitude -67.14. Stay updated with localized weather information tailored for Mayagüez.

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