
Japan · Okinawa
Tokashiki Island
Sea
84.6°F
Air
–
UV
–
Bathtub
Above 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.
64°F
68°F
72°F
75°F
79°F
82°F
86°F
90°F
93°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
7271.9
7070.4
7271.7
7272.3
7676.2
8080.0
8383.0
8382.8
8483.7
8181.5
7878.2
7574.9
AvgAvg °F
7372.7
7171.5
7272.0
7373.4
7776.8
8180.9
8584.5
8584.8
8584.8
8282.5
7979.2
7575.4
MaxMax °F
7473.5
7372.6
7372.5
7474.2
7877.7
8282.2
8686.0
8686.4
8685.9
8484.2
8080.2
7675.8
Warmest in September (84.8°F). Coldest in February (71.5°F). Comfortable for swimming year-round.
About Tokashiki Island
Tokashiki is the largest of the Kerama Islands, the Okinawan archipelago whose water is so transparent that locals coined the term Kerama Blue and Japan declared the whole group its 31st national park in 2014. On the west coast, Aharen Beach curves 800 metres of fine white sand around a sheltered reef lagoon, while Tokashiku Beach two kilometres north stays quieter, regularly drawing sea turtles into its shallows and humpback whales offshore. Sea temperatures hold 27–29 °C from July to September.






