Normal weather for Pôrto Rico in September
It's hot in September in Pôrto Rico with an average temperature of 31°C. Temperatures this month range from a low of 27°C to a high of 33°C. At night, you can expect temperatures between 17°C and 22°C.
In September, there is an average of 124 mm of precipitation, spread over 13 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Pôrto Rico in September |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 20°C | |
 High Temp |
33°C | 22°C | |
| Low Temp |
27°C | 17°C | |
 Total Precipitation |
124 mm | 44 mm | |
| Rainy Days |
13 days | 8 days | |
Curious about the climate in other parts of Brazil? Check out the weather and climate in places like Rio de Janeiro, Salvador, Pipa, or have a look at other destinations in Brazil.
Start of September
The month of September starts in Pôrto Rico with hot temperatures, averaging around 30°C during the day and nights close to 18°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-September
By mid-September, the average daytime temperature rises to around 32°C, with nights close to 20°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Pôrto Rico will be around 32°C, with nights close to 20°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Is September a good time to visit Pôrto Rico?
After some sun? Then September isn’t the best time to be in Pôrto Rico. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Pôrto Rico in September
With 40°C, Pôrto Rico hit the highest temperature in the last 10 years in September 2021. The lowest daytime temperature in this month was 15°C in 2018. The extreme night temperatures ranged from a low of 8°C to a high of 27°C.
Check out the climate of Pôrto Rico for all months and discover the best travel time
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Daily Temperature in September in Pôrto Rico
This chart shows the average daily temperatures, both day and night, for each day in September in Pôrto Rico, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Pôrto Rico
The chart below shows the average daily precipitation in September for Pôrto Rico, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 13 days of rain in Pôrto Rico.
Daily UV Index in September in Pôrto Rico
This chart shows the average daily UV index in September in Pôrto Rico, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Pôrto Rico Over the Years
This chart shows the average temperature in September in Pôrto Rico, measured in degrees Celsius, over the past years.
Total Precipitation in September in Pôrto Rico Over the Years
This chart shows the average precipitation in September in Pôrto Rico, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Pôrto Rico
Click on a specific day in September for detailed info on the typical weather on that day in Pôrto Rico. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Pôrto Rico
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Average Weather in Pôrto Rico by Month
Click on a month below to see detailed weather info for Pôrto Rico. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Pôrto Rico for all months at once
