Japan · Okinawa
Tokashiki Island
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.
64°F
68°F
72°F
75°F
79°F
82°F
86°F
90°F
93°F
January
72.6°F(71°F–74°F)
February
71.2°F(70°F–73°F)
March
71.5°F(70°F–72°F)
April
73.1°F(72°F–74°F)
May
76.7°F(75°F–78°F)
June
80.3°F(79°F–82°F)
July
83.9°F(82°F–86°F)
August
84.3°F(83°F–86°F)
September
83.4°F(82°F–85°F)
October
81.0°F(79°F–83°F)
November
78.2°F(77°F–80°F)
December
75.1°F(74°F–77°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 | 7171.1 | 7069.9 | 7070.2 | 7272.0 | 7574.9 | 7978.7 | 8282.1 | 8382.6 | 8281.9 | 7979.1 | 7776.7 | 7473.8 |
| AvgAvg °F | 7372.6 | 7171.2 | 7171.5 | 7373.1 | 7776.7 | 8080.3 | 8483.9 | 8484.3 | 8383.4 | 8181.0 | 7878.2 | 7575.1 |
| MaxMax °F | 7474.3 | 7372.6 | 7272.4 | 7474.3 | 7878.0 | 8281.9 | 8685.6 | 8686.4 | 8585.2 | 8383.1 | 8079.8 | 7776.7 |
Warmest in August (84.3°F). Coldest in February (71.2°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.