Average Temperature in the Cayman Islands: 27.5°C (81.5°F) Year-Round

The Cayman Islands enjoy a steady tropical climate:

• Annual mean: 27.5°C / 81.5°F
• Typical range: 25–32°C (77–90°F)
• Warmest: July–August
• Coolest: January–February
• Sea temperature: ~27°C (80.6°F) constant—ideal for diving/swimming anytime.

Trade winds moderate humidity; hurricane season June–November.