The weather in September in George Town

It's hot in September in George Town with an average temperature of 32°C. Temperatures this month range from a low of 32°C to a high of 33°C. At night, you can expect temperatures between 26°C and 28°C.

Looking for sun? September isn’t a good month to be in George Town. 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 George Town, Cayman Islands. 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 39°C in 2014, George Town reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 29°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 30°C.

Water temperature

The water temperature at George Town is 31°C this month. It’s really warm, perfect for a swim.

Rainfall amount

In September, there is an average of 176 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the East.

Daily weather in September for George Town

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

1

33° / 26°

2

33° / 27°

3

32° / 26°

4

33° / 27°

5

33° / 26°

6

32° / 28°

7

32° / 27°

8

32° / 27°

9

32° / 27°

10

32° / 27°

11

33° / 28°

12

32° / 27°

13

32° / 28°

14

32° / 28°

15

33° / 27°

16

33° / 28°

17

33° / 27°

18

33° / 27°

19

32° / 27°

20

32° / 27°

21

32° / 28°

22

32° / 27°

23

32° / 27°

24

33° / 27°

25

32° / 27°

26

32° / 27°

27

32° / 26°

28

32° / 27°

29

32° / 27°

30

32° / 27°

Start of September

The month of September starts in George Town with hot temps, averaging around 33°C during the day and nights around 27°C.

Mid September

By mid-September, daytime temps stay steady at around 33°C, with nights around 28°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in George Town is around 33°C, while nighttime temps are about 27°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 9 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 George Town for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in George Town, Cayman Islands. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in George Town

Temperature in September in George Town over the years

Precipitation charts

These charts show the average amount of precipitation in September in George Town, Cayman Islands. 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 George Town

Total precipitation in September in George Town over the years

Daily UV index in September in George Town

This chart shows the average daily UV index in September in George Town, 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 George Town by month

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