Cayman Islands

Cayman Islands Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Cayman Islands in September.

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Georgetown The Moorings North Side

Planning a journey to Cayman Islands this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Cayman Islands in September

September in Cayman Islands generally has very warm temperatures, with high precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 27°C (81°F) in Georgetown. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

To learn more about the conditions in specific areas of Cayman Islands, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in The Moorings with an average of 142 mm (5.6 in) to high rainfall in Bodden Town with 154 mm (6.1 in).

Average sunshine

September brings good sunshine to many areas. Georgetown sees around 240 hours of sunlight, great for visitors looking for bright days.

Explore Cayman Islands by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Cayman Islands in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Cayman Islands.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Cayman Islands

What is the weather like in September for some of the most popular destinations in Cayman Islands?

Temperature range in Cayman Islands (September)

Precipitation variation in Cayman Islands (September)

Georgetown

In September Georgetown generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
249 hours
240 hours
248 hours
Monthly rainfall
99 mm (3.9 in)
152 mm (6 in)
224 mm (8.8 in)
Monthly rainy days
15 days
16 days
17 days
Weather conditions
pleasant
tolerable
poor
Climate in Georgetown →

North Side

In September North Side generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
28°C (82°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
249 hours
240 hours
248 hours
Monthly rainfall
98 mm (3.9 in)
154 mm (6.1 in)
224 mm (8.8 in)
Monthly rainy days
15 days
16 days
17 days
Weather conditions
pleasant
tolerable
poor
Climate in North Side →

Is your destination not in the list? Have a look at all destinations in Cayman Islands.

In our records: Cayman Islands September extremes

Notable September records observed across cities in Cayman Islands in our climate database (1989 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in Cayman Islands brought 171 mm (6.7 in) in Georgetown on September 28, 2010.

Popular cities in September

Day & night temperatures, rainfall and average weather in Cayman Islands in September.

City Weather Day temp Night temp Rainfall
Georgetown 30°C (86°F) 27°C (81°F) 152 mm (6 in)
The Moorings 30°C (86°F) 27°C (81°F) 142 mm (5.6 in)
North Side 30°C (86°F) 27°C (81°F) 154 mm (6.1 in)

Cayman Islands weather in September: frequently asked questions

What is the weather like in Cayman Islands in September?

September in Cayman Islands brings unpleasant weather. In Georgetown, daytime temperatures are typically around 30°C (86°F) and nighttime lows hover near 27°C (81°F).

What is the average temperature in Cayman Islands in September?

Georgetown averages a daytime maximum of 30°C (86°F) in September, with overnight lows close to 27°C (81°F).

Does Cayman Islands get a lot of rain in September?

Cayman Islands sees substantial rainfall in September. Georgetown typically averages about 152 mm (6 in), a mix of wet and dry days, but bring an umbrella.

Is September a Good Time to Visit Cayman Islands?

Given the typically tolerable weather conditions in Georgetown, September might be a good time to visit Cayman Islands. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Cayman Islands is in January, February, March, April and December with generally perfect weather in Georgetown. On the other hand, the month of October tends to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Cayman Islands.

Weather and climate has detailed information for every country in the world. Are you going to Cayman Islands? Get detailed historical weather averages for many cities in Cayman Islands.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.