Grand Cayman Water Temperature
Grand Cayman is the largest of the three Cayman Islands, and one of the most beautiful destinations in the Caribbean. It’s easy to reach and there are regular flights to Owen Roberts International Airport.
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Scuba diving and snorkelling are some of the most popular pastimes, and there are several shipwrecks near the shore as well as a number of coral reefs. George Town, the island’s capital is picturesque, and the famous Seven Mile Beach to the west of the town is considered among the most beautiful in the world.
The coldest month is February with an average water temperature of 79.7°F / 26.5°C.
March is the driest at 0.5in / 11.5mm and October the wettest month with 10.8in / 274.5mm.
With an average air temperature of 83.5°F / 28.6°C, August is the warmest month in a year. January is the coldest with 77.4°F / 25.2°C average air temperature.
The Climate is described as tropical savanna climate with wet summer. Best time to Visit would be in January, February, March, April, May, June, July, December.
George Town Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | September with 85.6°F / 29.8°C |
| Coldest Month Water Temperature: | February with 79.7°F / 26.5°C |
| Warmest Month Air Temperature: | August with 83.5°F / 28.6°C |
| Coldest Month Air Temperature: | January with 77.4°F / 25.2°C |
| Wettest Month: | October with 10.8in / 274.5mm |
| Driest Month: | March with 0.5in / 11.5mm |
| Highest Humidity | June with 79.4% |
| Lowest Humidity | March with 72.3% |
| Best Time to Visit: | January, February, March, April, May, June, July, December |
| Climate Classification | tropical savanna climate with wet summer |
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George Town water temperature by month
caribbean sea water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
81.1 | 80.4 | 79.7 |
|
February |
80.1 | 79.9 | 79.7 |
|
March |
80.4 | 79.9 | 79.5 |
|
April |
81.9 | 81 | 80.2 |
|
May |
83.1 | 82.6 | 81.9 |
|
June |
84 | 83.5 | 82.9 |
|
July |
85.3 | 84.6 | 83.8 |
|
August |
85.6 | 85.5 | 85.1 |
|
September |
85.8 | 85.6 | 85.3 |
|
October |
85.5 | 84.9 | 84.2 |
|
November |
84.2 | 83.3 | 82.2 |
|
December |
82.2 | 81.7 | 81 |
caribbean sea water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
27.3 | 26.9 | 26.5 |
|
February |
26.7 | 26.6 | 26.5 |
|
March |
26.9 | 26.6 | 26.4 |
|
April |
27.7 | 27.2 | 26.8 |
|
May |
28.4 | 28.1 | 27.7 |
|
June |
28.9 | 28.6 | 28.3 |
|
July |
29.6 | 29.2 | 28.8 |
|
August |
29.8 | 29.7 | 29.5 |
|
September |
29.9 | 29.8 | 29.6 |
|
October |
29.7 | 29.4 | 29 |
|
November |
29 | 28.5 | 27.9 |
|
December |
27.9 | 27.6 | 27.2 |
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George Town weather today & 14-day weather forecast
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The waters around Grand Cayman are a real treat for swimmers and divers with average temperatures of 80F or 26C throughout the year. Seasonal lows of around 78F or 25C in January and highs of 87F or 30C mean that water is warm and very pleasant whatever the month. The island is tucked away in the north west area of the Caribbean and its excellent location keeps the water temperature constant.
George Town weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
80.2 | 77.4 | 75 | 1.4 | 0 | 72.9% |
|
February |
80.2 | 77.5 | 74.8 | 0.8 | 0 | 72.9% |
|
March |
81.1 | 78.1 | 75.4 | 0.5 | 0 | 72.3% |
|
April |
82.9 | 79.5 | 76.6 | 0.7 | 0 | 74.1% |
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May |
83.5 | 80.8 | 78.3 | 3.1 | 8 | 76.9% |
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June |
84.9 | 82 | 79.2 | 6 | 11 | 79.4% |
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July |
86 | 83.1 | 80.4 | 3.6 | 8 | 77.4% |
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August |
86.2 | 83.5 | 79.9 | 4.4 | 13 | 76.9% |
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September |
85.8 | 82.9 | 79.9 | 7 | 19 | 77.9% |
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October |
84.4 | 81.5 | 78.6 | 10.8 | 0 | 79% |
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November |
82.4 | 79.9 | 77.5 | 5.4 | 10 | 73.9% |
|
December |
80.8 | 78.6 | 75.9 | 2.9 | 5 | 74.2% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
26.8 | 25.2 | 23.9 | 34.5 | 0 | 72.9% |
|
February |
26.8 | 25.3 | 23.8 | 21.5 | 0 | 72.9% |
|
March |
27.3 | 25.6 | 24.1 | 11.5 | 0 | 72.3% |
|
April |
28.3 | 26.4 | 24.8 | 17.5 | 0 | 74.1% |
|
May |
28.6 | 27.1 | 25.7 | 79.4 | 8 | 76.9% |
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June |
29.4 | 27.8 | 26.2 | 151.5 | 11 | 79.4% |
|
July |
30 | 28.4 | 26.9 | 91 | 8 | 77.4% |
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August |
30.1 | 28.6 | 26.6 | 112.7 | 13 | 76.9% |
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September |
29.9 | 28.3 | 26.6 | 178.3 | 19 | 77.9% |
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October |
29.1 | 27.5 | 25.9 | 274.5 | 0 | 79% |
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November |
28 | 26.6 | 25.3 | 137.3 | 10 | 73.9% |
|
December |
27.1 | 25.9 | 24.4 | 74.3 | 5 | 74.2% |
Best time to visit Grand Cayman
Grand Cayman enjoys a typical Caribbean climate with hot summer days that can be humid at night, and warm winters with cool nights. Summer humidity is relieved by the cooling sea breeze and though there is a rainy season from May to November, rainfall tends to be in the form of tropical downpours during the night. The wettest months are May to June and September to October while the driest are February and March. You’re guaranteed sunshine and perfect conditions for diving and swimming all through the year.
You should see this when you visiting Grand Cayman
Seven Mile Beach is one of the island’s most popular destinations, and also the busiest. It is one of the most spectacular stretches of white coral sand in the world, and there are shops, bars and restaurants to suit every taste. Try snorkelling around Cemetery Reef or take a guided dive to one of the shipwrecks that dot the coastline. Feed the incredibly tame stingrays at Stingray Point, and be sure to visit the Cayman Turtle Farm.
Picture Copyright: Flickr CC 2.0 GRI SHA