Rarotonga sea temperature today: 24°C – beach water temperature, Rarotonga, Cook Islands
Cook Islands · South Pacific

Rarotonga

Sea
74.5°F
Air
UV
Beach day
23–28°C

More like this

Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
72°F
75°F
79°F
82°F
86°F
90°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
Min
80
81
83
81
79
77
76
76
76
76
76
78
Avg
81
82
83
82
80
78
77
76
76
77
77
79
Max
82
83
83
83
82
80
78
77
77
78
78
80

Warmest in March (82.8°F). Coldest in August (76.1°F). Comfortable for swimming year-round.

About Rarotonga

The South Pacific's Cook Islands centre on Rarotonga, a 67 km² volcanic island ringed by a near-continuous fringing reef and crowned by Te Manga, a 652-metre jagged spire over the dramatic interior. Muri Beach scatters four small motus off the southeast coast, wadeable at low tide, while Titikaveka Beach on the south shore guards the calmest lagoon and richest snorkelling. Sea temperatures sit between 25 and 28 °C year-round, peaking at 27–28 °C in February and March; the airport lies under 25 minutes from any point.