The weather in September in Guánica

It's hot in September in Guánica with an average temperature of 32°C. Temperatures this month range from a low of 31°C to a high of 33°C. At night, you can expect temperatures between 24°C and 25°C.

Looking for sun? September isn’t a good month to be in Guánica. 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 Guánica, Puerto Rico. 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 35°C in 2018, Guánica reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 26°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 20°C to a highest value of 27°C.

Rainfall amount

In September, there is an average of 180 mm of precipitation, spread over 19 days. The wind speed is around 3 Bft, mostly coming from the East.

Daily weather in September for Guánica

Click on any day in September to get detailed info about the usual weather on that day in Guánica. Check out the historical temperatures and precipitation over the past 10 years on this day.

1

31° / 25°

2

32° / 24°

3

31° / 25°

4

32° / 25°

5

31° / 25°

6

32° / 25°

7

32° / 25°

8

32° / 25°

9

32° / 25°

10

32° / 25°

11

32° / 24°

12

32° / 25°

13

33° / 25°

14

32° / 25°

15

31° / 25°

16

32° / 24°

17

32° / 25°

18

31° / 24°

19

31° / 25°

20

31° / 25°

21

32° / 25°

22

32° / 25°

23

32° / 25°

24

32° / 25°

25

32° / 25°

26

32° / 25°

27

32° / 25°

28

32° / 25°

29

32° / 24°

30

31° / 24°

Start of September

The month of September starts in Guánica with hot temps, averaging around 32°C during the day and nights around 25°C.

Mid September

By mid-September, daytime temps stay steady at around 32°C, with nights around 25°C. There’s a high chance of precipitation during this time.

End of September

By the end of September, the average daytime temperature in Guánica is around 32°C, while nighttime temps are about 25°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Guánica

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.

The hurricane season in Guánica runs from June to November.

Check out the climate of Guánica for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Guánica, Puerto Rico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Guánica

Temperature in September in Guánica over the years

Precipitation charts

These charts show the average amount of precipitation in September in Guánica, Puerto Rico. 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 Guánica

Total precipitation in September in Guánica over the years

Daily UV index in September in Guánica

This chart shows the average daily UV index in September in Guánica, 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.

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Average weather in Guánica by month

Click on a month below to see detailed weather info for Guánica. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.