Grand Cayman Weather in August

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

Are you planning a trip a to Grand Cayman, Cayman Islands in August and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Grand Cayman in August

Grand Cayman, Cayman Islands is a region in Cayman Islands. August in Grand Cayman generally has very warm temperatures, with moderate precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 28°C (82°F) in North Side. On average, August is the warmest month of the year in Grand Cayman, Cayman Islands. So be prepared and pack summer clothes.

For a closer look at conditions across Grand Cayman, Cayman Islands, refer to the map below.

Precipitation

August is a moderate rainy month with an average rainfall of around 98 mm (3.9 in) in North Side.

Average sunshine

August brings good sunshine to many areas. North Side sees around 249 hours of sunlight, great for visitors looking for bright days.

Explore Grand Cayman by month

Pick a month to see the average temperature, rainfall and sunshine in Grand Cayman — and find the best time to visit. (based on North Side)

Best Places to Visit in Grand Cayman in August

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

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 Grand Cayman

What is the weather like in August for some of the most popular destinations in Grand Cayman, Cayman Islands?

Temperature range in Grand Cayman (August)

Precipitation variation in Grand Cayman (August)

North Side

In August North Side generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 28°C (82°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
30°C (86°F)
31°C (88°F)
30°C (86°F)
Min temperature
27°C (81°F)
28°C (82°F)
27°C (81°F)
Monthly sun hours
322 hours
249 hours
240 hours
Monthly rainfall
67 mm (2.6 in)
98 mm (3.9 in)
154 mm (6.1 in)
Monthly rainy days
15 days
15 days
16 days
Weather conditions

West Bay

In August West Bay generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 28°C (82°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
28°C (82°F)
27°C (81°F)
Monthly sun hours
322 hours
249 hours
240 hours
Monthly rainfall
68 mm (2.7 in)
100 mm (3.9 in)
153 mm (6 in)
Monthly rainy days
15 days
15 days
16 days
Weather conditions

Gun Bay

In August Gun Bay generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 28°C (82°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
30°C (86°F)
31°C (88°F)
30°C (86°F)
Min temperature
27°C (81°F)
28°C (82°F)
27°C (81°F)
Monthly sun hours
322 hours
249 hours
240 hours
Monthly rainfall
66 mm (2.6 in)
97 mm (3.8 in)
154 mm (6.1 in)
Monthly rainy days
14 days
15 days
16 days
Weather conditions

Brinkleys

In August Brinkleys generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 28°C (82°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
30°C (86°F)
31°C (88°F)
30°C (86°F)
Min temperature
27°C (81°F)
28°C (82°F)
27°C (81°F)
Monthly sun hours
322 hours
249 hours
240 hours
Monthly rainfall
67 mm (2.6 in)
98 mm (3.9 in)
154 mm (6.1 in)
Monthly rainy days
15 days
15 days
16 days
Weather conditions

George Town

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

July
August
September
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
322 hours
249 hours
240 hours
Monthly rainfall
69 mm (2.7 in)
99 mm (3.9 in)
152 mm (6 in)
Monthly rainy days
15 days
15 days
16 days
Weather conditions

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

Popular cities in August

Day & night temperatures, rainfall and average weather in Grand Cayman in August.

City Weather Day temp Night temp Rainfall
North Side 31°C (88°F) 28°C (82°F) 98 mm (3.9 in)
West Bay 30°C (86°F) 28°C (82°F) 100 mm (3.9 in)
Gun Bay 31°C (88°F) 28°C (82°F) 97 mm (3.8 in)
Brinkleys 31°C (88°F) 28°C (82°F) 98 mm (3.9 in)
George Town 30°C (86°F) 27°C (81°F) 99 mm (3.9 in)

Grand Cayman weather in August: frequently asked questions

What is the weather like in Grand Cayman, Cayman Islands in August?

Grand Cayman, Cayman Islands typically experiences tolerable weather in August, part of the season. Daytime highs in North Side average around 31°C (88°F), and temperatures drop to about 28°C (82°F) at night.

What is the average temperature in Grand Cayman, Cayman Islands in August?

North Side averages a daytime maximum of 31°C (88°F) in August, with overnight lows close to 28°C (82°F).

Does Grand Cayman, Cayman Islands get a lot of rain in August?

Not particularly. North Side averages just 98 mm (3.9 in) of rain in August, making it a mostly dry month for Grand Cayman, Cayman Islands.

Is August a Good Time to Visit Grand Cayman, Cayman Islands?

In our opinion, August is a good time to visit Grand Cayman, Cayman Islands with overall pleasant weather in North Side. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Grand Cayman, Cayman Islands is in January, February, March, April and December with generally perfect weather in North Side. On the other hand, the weather in October tends to be poor.

Interested in more climate information?

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

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.