September Weather in The Cayman Islands - 2024
The Cayman Islands is a group of 3 islands (Grand Cayman, Cayman Brac, and Little Cayman) in the western Caribbean Sea. It is a British Overseas Territory. The largest island is Grand Cayman, which is home to the capital, George Town. It is popular for its beach resorts and unique scuba diving, and snorkeling locations. Cayman Brac is well suited for deep-sea fishing excursions. The smallest island, rightly named Little Cayman, is known for its wildlife diversity and home to endangered iguanas, and seabirds like the red-footed boobies. The Islands also have traces of their colonial past in the form of historic buildings and sites. The surrounding sea provides wonderful fishing, diving, shipwreck sites, as well as reefs.
The locals are very friendly and hospitable people. The official language is English. Visiting the Cayman Islands would be an unforgettable experience full of sunny days, warm smiles, and a peace of mind.
Generally, September in The Cayman Islands will be really nice, with an average temperature of around 84°F / 29°C. But due to the very high humidity, it can feel very uncomfortable. You can expect around 19 rainy days, with on average 5.4 inches / 138 mm of rain during the month of September.
Contents
- 1 September weather in The Cayman Islands
- 2 September weather in The Cayman Islands in more detail
- 2.1 - What will the temperature be in The Cayman Islands in September
- 2.2 - Can you expect rain in September in The Cayman Islands?
- 2.3 - What will the water temperature be in The Cayman Islands for September
- 2.4 - Can you expect in September a lot of sunny days in The Cayman Islands
- 2.5 - Will it be comfortable in September in The Cayman Islands?
- 3 What to do in The Cayman Islands in September
- 4 Is it humid in The Cayman Islands in September?
- 5 Is September a good time to go to The Cayman Islands?
- 6 Does it rain all day in The Cayman Islands in September?
- 7 Is September the rainiest month in The Cayman Islands?
- 8 Is September the most sunniest month in The Cayman Islands?
- 9 More information about The Cayman Islands
- 10 Weather in The Cayman Islands in other months
- 11 What to do in The Cayman Islands for each month
September weather in The Cayman Islands
To get a good overview of the type of weather you can expect in September in The Cayman Islands, we will look at the day and night temperature, minimum and maximum water temperature, and if September is comfortable or humidGenerally, September in The Cayman Islands will be really nice. Historical data shows that you can expect an average temperature of around 84°F / 29°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will cool down to around 82°F / 28°C. Many will prefer a location with air conditioning due to the night temperature, and the high humidity level.
The Cayman Islands has its share of rainy days in September. You can expect around 19 rainy days, with on average 5.4 inches / 138 mm of rain during the whole month.
But remember that rain can be short and heavy for many tropical locations, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.
September weather in The Cayman Islands in more detail
To get a better feeling for the type of weather, you can expect in September in The Cayman Islands, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds- What will the temperature be in The Cayman Islands in September
Generally, you can expect in September an average temperature of 84°F / 29°C during the day and an average of 82°F / 28°C during the night. In September, during the warmest part of the afternoon, the temperature can often get as high as 84°F / 29°C, and at the end of the night, it can get as low as 80°F / 27°C.
When looking at the whole year, February is the coldest month, with an average temperature of around 77°F / 25°C. August and September are the hottest months, with an average temperature of around 84°F / 29°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 84°F / 29°C. And almost equal to October, which sees an average maximum temperature of around 82°F / 28°C.
But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, June, July, August, September and October are the hottest months, with a temperature of around 84°F / 29°C. February is the coldest month, with a temperature of around 78°F / 26°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 84°F / 29°C. And equal to October, which sees an average maximum temperature of around 84°F / 29°C.
In the following graph, you can see how many cold and hot days you can expect in The Cayman Islands each month:
- Can you expect rain in September in The Cayman Islands?
Generally, you can expect about 19 rain days in September, with on average 5.4 inches / 138 mm of rain.
When looking at the whole year, February is the dryest month, with an average rainfall of around 0.8 inches / 21 mmmm. October is the wettest month, with an average rainfall of around 7.7 inches / 195 mmmm. When comparing September with the month before and after, this is a lot more than August, which sees around 3.4 inches / 86 mm of rain. And a lot less than October, which sees around 7.7 inches / 195 mm of rain
If we look at the number of days with rain, February is the month with the least amount of rain days with an average of between 7 and 8 days. October is the month with the most rain days with an average of between 20 and 21 days. When comparing September with the month before and after, this is slightly more than August, which sees around 17 days of rain. And almost equal to October, which sees an average of between 20 and 21 days of rain
There is one thing that is important to know, in many tropical destinations rain can be short and heavy, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.- What will the water temperature be in The Cayman Islands for September
You can expect in September, the water temperature for The Cayman Islands to be between 87°F / 31°C and 84°F / 29°C.
To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.
August and September And have the highest water temperature, witharound 87°F / 31°C. February has the lowest water temperature, with an average of between 80°F / 27°C and 82°F / 28°C. When comparing the water temperature from September with the month before and after, September has a water temperature equal to August, with a water temperature of around 87°F / 31°C. And almost equal to the water temperature from October, that is around 86°F / 30°C.
- Can you expect in September a lot of sunny days in The Cayman Islands
Generally, you can expect around 9 sunny days in September and around 15 partly sunny days. The remaining days will be cloudy.
When looking at the whole year, April is the month with the highest number of sunny days, with around 21 sunny days. September is the month with the lowest number of sunny days, with an average of between 9 and 10 sunny days. When comparing September with the number of sunny days in the month before and after, it is slightly lower than August, with around 13 sunny days. And almost equal to October, with an average of between 10 and 11 sunny days
We have looked at the sunny days in The Cayman Islands. Let's also look at the cloudy or overcast days. October is the month with the highest number of cloudy days, with an average of between 6 and 7 cloudy days. April is the month with the lowest number of cloudy days, with an average of between 0 and 1 cloudy days. When comparing September with the number of cloudy days in the month before and after, it is almost equal to August, with an average of between 4 and 5 cloudy days. And almost equal to October, with an average of between 6 and 7 cloudy days
- Will it be comfortable in September in The Cayman Islands?
Generally, September in The Cayman Islands will have a very high humidity, and can feel very uncomfortable.
We use the humidity and temperature in The Cayman Islands to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.
When looking at the whole year, January has the lowest humidity, with a Wintersun Expert comfort level of "comfortable" (not very humid). July has the highest humidity, with a Wintersun Expert comfort level of "very uncomfortable" (very high humidity). When comparing September with the month before and after, this is almost equal to August, which has a Wintersun Comfort level of "very uncomfortable" (very high humidity). And slightly more than October, which has a Wintersun Comfort level of "slightly uncomfortable" (moderately humid)
What to do in The Cayman Islands in September
- Cayman Crystal Caves: Underground limestone cave formation with a souvenir shop
- Cayman Islands National Museum: Museum dedicated to the preservation, research, and display of Cayman heritage. Contains more than 8,000 items and artifacts.
- Kittiwake Shipwreck & Artificial Reef: Sunken Ship turned reef.
- Cayman Turtle Centre: this is a Turtle conservation facility in the western Bay of the Cayman Islands first established in 1968 to breed endangered green sea turtles.
- Pedro St. James: The oldest existing building in the Cayman Islands originally built in the 1780s as a manor house. It is located on the southern coast of Grand Cayman Island.
- Cayman Spirits Co.: Popular distillery that attracts tourists.
- Dolphin Cove Cayman: Dolphin sighting area.
- Barker's National Park: Protected area with beaches & greenery.
- Ft. George Ruins: Colonial era fortifications located on Grand Cayman, with Cannons still around.
Is it humid in The Cayman Islands in September?
A lot of people ask interested in the humidity or relative humidity for The Cayman Islands in September. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in September in The Cayman Islands, or will high humidity make it uncomfortable.To answer this question, we have to look at the dew point. Relative humidity can change a lot in The Cayman Islands during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.
Looking at the dew point, we can see that for the month of September, you can expect that The Cayman Islands will have a very high humidity, and can feel very uncomfortable.
January is the month with the most comfort. It will not be very humid, and will feel comfortable. July is the most uncomfortable month. It will be extremely humid, and can feel extremely uncomfortable. In the graph, you can see that there is some difference between the most comfortable and most uncomfortable months
Is September a good time to go to The Cayman Islands?
Trying to answer the question of whether September is a good time to go to The Cayman Islands is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.
These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.
If we look at the average temperature for The Cayman Islands in September, we can see that it will be fine for most people. In September, you can expect it to be really nice, with an average temperature of around 84°F / 29°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will be around 82°F / 28°C.
The number of overcast days is more than 5, but you can still the sun with around 9 sunny days and 15 partly sunny days.
The last aspect we will look at is rain. You can expect around 19 rainy days, with on average 5.4 inches / 138 mm of rain during September. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy.
We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that September in The Cayman Islands is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.
Does it rain all day in The Cayman Islands in September?
In The Cayman Islands, it does not rain all day in September. You can expect around 19 rainy days, with on average 5.4 inches / 138 mm of rain during the month.
Another way of looking at the rain is the number of sunny days. For The Cayman Islands, there are, on average 9 sunny days and 15 partly sunny days in September. That clearly shows that it is not raining all the time.
And, as for many tropical locations, rain can be short and heavy. This applies particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.
Is September the rainiest month in The Cayman Islands?
September is not the month with the most rainy days, and not the month with the most rain.
To answer what the rainiest month is in The Cayman Islands, we will both look at the month with the most rain, and the month with the highest number of rainy days.
October is the month with the the highest number of rainiest days. On average, you can expect 21 days with rain. February is the month with the lowest number of rainy days, with aproximately 7 days.
October is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 7.7 inches / 195 mm of rain. February is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0.8 inches / 21 mm of rain.
Is September the most sunniest month in The Cayman Islands?
September is not the month with the most sunny days, it is the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.
To answer what the sunniest month is in The Cayman Islands, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.
April is the month with the highest number of sunny days. On average, you can expect 9 sunny days, and 15 partly suny days. September is the month with the lowest number of sunny days.
March is the month with the highest number of sunny days and partly sunny days combined. While June is the month with the lowest number of sunny days and partly sunny days combined.
The last thing we will look at is the number of overcast days. April is the month with the lowest number of overcast days. While October is the month with the highest number of overcast days.
More information about The Cayman Islands
Weather in The Cayman Islands in other months
- Weather in The Cayman Islands for January
- Weather in The Cayman Islands for February
- Weather in The Cayman Islands for March
- Weather in The Cayman Islands for April
- Weather in The Cayman Islands for May
- Weather in The Cayman Islands for June
- Weather in The Cayman Islands for July
- Weather in The Cayman Islands for August
- Weather in The Cayman Islands for October
- Weather in The Cayman Islands for November
- Weather in The Cayman Islands for December
What to do in The Cayman Islands for each month
- What to do in January in The Cayman Islands
- What to do in February in The Cayman Islands
- What to do in March in The Cayman Islands
- What to do in April in The Cayman Islands
- What to do in May in The Cayman Islands
- What to do in June in The Cayman Islands
- What to do in July in The Cayman Islands
- What to do in August in The Cayman Islands
- What to do in September in The Cayman Islands
- What to do in October in The Cayman Islands
- What to do in November in The Cayman Islands
- What to do in December in The Cayman Islands