Late May–June or mid-September–October (shoulder seasons). The shoulder seasons offer the best balance for most visitors: warm sunshine (57–77°F / 14–25°C), comfortable sea temperatures, significantly fewer crowds than peak summer, and lower hotel prices. May–June sees the island in full bloom before the July–August crush; September–October retains summer warmth while the frenetic peak crowds have thinned. Those specifically seeking the maximum beach and swimming experience should choose July–August despite the crowds and heat. Winter (December–February) is serene but most businesses close
| Month | High (°F) | Low (°F) | Notes |
|---|---|---|---|
| Jan | 57 | 51 | cool & changeable |
| Feb | 58 | 52 | cool & changeable |
| Mar | 60 | 54 | mild & mostly dry |
| Apr | 64 | 58 | mild & sunny |
| May | 70 | 63 | mild & sunny |
| Jun | 78 | 70 | warm & sunny |
| Jul | 81 | 74 | warm & sunny |
| Aug | 82 | 75 | warm & sunny |
| Sep | 78 | 72 | warm & sunny |
| Oct | 72 | 66 | mild & sunny |
| Nov | 66 | 60 | mild & mostly dry |
| Dec | 60 | 55 | mild & mostly dry |