Click on a day for an hourly weather forecast
The temperatures in Cayman Islands during September are extremely high, between 29°C and hot as 29°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Cayman Islands. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Cayman Islands in September 2025.
If you’re planning to visit Cayman Islands in the near future, we highly recommend that you review the 14 day weather forecast for Cayman Islands before you arrive.
Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
---|---|---|---|---|---|---|---|
January | 26° / 25° | 3 | 28 | 0 | 79 mm | Perfect | Cayman Islands in January |
February | 26° / 25° | 2 | 26 | 0 | 58 mm | Perfect | Cayman Islands in February |
March | 26° / 25° | 2 | 30 | 0 | 47 mm | Perfect | Cayman Islands in March |
April | 27° / 26° | 3 | 27 | 0 | 72 mm | Perfect | Cayman Islands in April |
May | 28° / 27° | 7 | 24 | 0 | 216 mm | Good | Cayman Islands in May |
June | 29° / 28° | 6 | 24 | 0 | 180 mm | Good | Cayman Islands in June |
July | 29° / 28° | 6 | 25 | 0 | 143 mm | Good | Cayman Islands in July |
August | 30° / 29° | 7 | 24 | 0 | 143 mm | Ok | Cayman Islands in August |
September | 29° / 29° | 8 | 22 | 0 | 176 mm | Ok | Cayman Islands in September |
October | 29° / 28° | 11 | 20 | 0 | 341 mm | Ok | Cayman Islands in October |
November | 28° / 27° | 7 | 23 | 0 | 222 mm | Good | Cayman Islands in November |
December | 27° / 26° | 3 | 28 | 0 | 96 mm | Perfect | Cayman Islands in December |
For a more accurate weather forecast please select a city