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Weather in Puerto Rico for September 2025

Your guide to Puerto Rico weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Puerto Rico at the beginning of September is 24.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 24.6 °C by the end of September.

    • Rain 🌧️

  • Precipitation in Puerto Rico during September is a rare event, with an average of fewer than 2 rainy days.

    • More

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

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
30
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/20°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Puerto Rico in September average weather

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
24°
2
Sunny
25°
3
Sunny
25°
4
Sunny
24°
5
Sunny
25°
6
Patchy rain possible
24°
7
Sunny
24°
8
Sunny
24°
9
Sunny
25°
10
Sunny
25°
11
Sunny
25°
12
Sunny
25°
13
Sunny
26°
14
Partly cloudy
26°
15
Sunny
24°
16
Overcast
24°
17
Cloudy
23°
18
Patchy rain possible
23°
19
Patchy rain possible
22°
20
Partly cloudy
22°
21
Sunny
23°
22
Sunny
24°
23
Sunny
24°
24
Sunny
24°
25
Sunny
24°
26
Sunny
26°
27
Sunny
25°
28
Sunny
25°
29
Sunny
24°
30
Sunny
24°
Select a date

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Access Puerto Rico weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Temperatures trend during September in Puerto Rico

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

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 24° /20° 0 mm 6
2 Sept. Sunny
Sunny
 25° /20° 0 mm 7
3 Sept. Sunny
Sunny
 25° /21° 0 mm 7
4 Sept. Sunny
Sunny
 24° /20° 0 mm 6
5 Sept. Sunny
Sunny
 25° /20° 0 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 24° /20° 0.1 mm 5
7 Sept. Sunny
Sunny
 24° /21° 0.1 mm 6
8 Sept. Sunny
Sunny
 24° /21° 0 mm 6
9 Sept. Sunny
Sunny
 25° /20° 0 mm 7
10 Sept. Sunny
Sunny
 25° /21° 0 mm 7
11 Sept. Sunny
Sunny
 25° /21° 0 mm 7
12 Sept. Sunny
Sunny
 25° /20° 0 mm 7
13 Sept. Sunny
Sunny
 26° /20° 0 mm 7
14 Sept. Partly cloudy
Partly cloudy
 26° /21° 0 mm 7
15 Sept. Sunny
Sunny
 24° /21° 0 mm 6
16 Sept. Overcast
Overcast
 24° /20° 0 mm 5
17 Sept. Cloudy
Cloudy
 23° /20° 0 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
 23° /21° 0.1 mm 5
19 Sept. Patchy rain possible
Patchy rain possible
 22° /20° 0.1 mm 5
20 Sept. Partly cloudy
Partly cloudy
 22° /20° 0 mm 6
21 Sept. Sunny
Sunny
 23° /20° 0 mm 6
22 Sept. Sunny
Sunny
 24° /20° 0 mm 6
23 Sept. Sunny
Sunny
 24° /20° 0 mm 6
24 Sept. Sunny
Sunny
 24° /20° 0 mm 6
25 Sept. Sunny
Sunny
 24° /19° 0 mm 6
26 Sept. Sunny
Sunny
 26° /20° 0 mm 7
27 Sept. Sunny
Sunny
 25° /20° 0 mm 7
28 Sept. Sunny
Sunny
 25° /20° 0 mm 7
29 Sept. Sunny
Sunny
 24° /20° 0 mm 6
30 Sept. Sunny
Sunny
 24° /20° 0 mm 6
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Important Notice
Our weather forecast for Puerto Rico 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 Puerto Rico forecast closer to your planned date for the most up-to-date weather information.

Puerto Rico in September - FAQ

What are the expected maximum and minimum temperatures in Puerto Rico during September?
During September, expect a variety of temperatures with highs around 24° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Puerto Rico during September?
Rainfall in Puerto Rico during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Puerto Rico during September?
The average wind speed in Puerto Rico during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Puerto Rico in September?

As you prepare for your trip to Puerto Rico 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 Puerto Rico, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather

September rainfall patterns in Puerto Rico

Explore the daily rainfall trends and prepare for Puerto Ricos September weather 💧

UV exposure in Puerto Rico during September

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

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Location coordinates Where is Puerto Rico?

Get accurate weather forecasts for Puerto Rico, located at latitude 27.789 and longitude -15.71. Stay updated with localized weather information tailored for Puerto Rico.

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