Cayman Islands · Grand Cayman
Seven Mile Beach
Sea
—
Air
—
UV
—
More like this
Climate · monthly averages
Sea temperature by month
30-year averages (1996–2025). Min/Max are typical daily lows and highs, not record extremes.
72°F
75°F
79°F
82°F
86°F
90°F
93°F
January
80.6°F(79°F–82°F)
February
80.1°F(79°F–81°F)
March
80.2°F(79°F–82°F)
April
81.2°F(80°F–82°F)
May
82.8°F(82°F–84°F)
June
83.8°F(83°F–85°F)
July
84.8°F(84°F–86°F)
August
85.6°F(84°F–87°F)
September
85.8°F(85°F–87°F)
October
85.0°F(84°F–86°F)
November
83.4°F(82°F–85°F)
December
81.9°F(80°F–83°F)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MinMin °F | 7978.9 | 7978.6 | 7978.7 | 8080.2 | 8281.8 | 8382.8 | 8484.0 | 8484.4 | 8584.9 | 8483.5 | 8282.1 | 8080.3 |
| AvgAvg °F | 8180.6 | 8080.1 | 8080.2 | 8181.2 | 8382.8 | 8483.8 | 8584.8 | 8685.6 | 8685.8 | 8585.0 | 8383.4 | 8281.9 |
| MaxMax °F | 8281.8 | 8181.1 | 8281.6 | 8282.5 | 8484.2 | 8585.3 | 8685.7 | 8786.9 | 8787.0 | 8686.2 | 8584.5 | 8383.0 |
Warmest in September (85.8°F). Coldest in February (80.1°F). Comfortable for swimming year-round.
About Seven Mile Beach
Grand Cayman's western shore is fronted by Seven Mile Beach, a 6.3-kilometre strip of coral-fine sand sheltered from the easterly trade winds and edged by a reef that drops into the Cayman Trench just offshore. Across the island to the north, Rum Point opens onto a hammock-strung bay calmer still, while Smith Cove tucks a snorkelling pocket between low limestone bluffs on the southern coast. Sea temperatures hold between 28 and 29 °C from July through September, with Owen Roberts International ten minutes by road from George Town.