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BrazilThe weather in September in Pôrto Rico
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.
Looking for sun? September isn’t a good month to be in Pôrto Rico. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Pôrto Rico, Brazil. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 40°C in 2021, Pôrto Rico reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 15°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 27°C.
Rainfall amount
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.
Daily weather in September for Pôrto Rico
Click on any day in September to get detailed info about the usual weather on that day in Pôrto Rico. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Pôrto Rico | New York | |
|---|---|---|
| Average temperature | 31°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 124 mm | 57 mm |
| Rainy days | 13 days | 9 days |
Start of September
The month of September starts in Pôrto Rico with hot temps, averaging around 30°C during the day and nights around 18°C.
Mid September
By mid-September, daytime temps rise to around 32°C, with nights around 20°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Pôrto Rico is around 32°C, while nighttime temps are about 20°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
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.
Check out the climate of Pôrto Rico for all months and discover the best travel time
Curious about the weather in other parts of Brazil? Check out the climate and weather for spots like Rio de Janeiro, Salvador, Pipa, or explore other destinations in Brazil.
Temperature charts
These charts show the average temperatures in September in Pôrto Rico, Brazil. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Pôrto Rico
Temperature in September in Pôrto Rico over the years
Precipitation charts
These charts show the average amount of precipitation in September in Pôrto Rico, Brazil. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Pôrto Rico
Total precipitation in September in Pôrto Rico over the years
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.
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.