Kabira Bay — Sea temperature now
Postcard-perfect Ishigaki bay.
Pleasant water with a light chop and a light breeze — great swimming conditions.
Location
Kabira Bay on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Monthly sea temperature averages
Typical year-round water temperature, based on regional climatology.
Best time to swim in Kabira Bay
The sea in Kabira Bay peaks in July, when the water averages around 23°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically January at around 20°C, when cold-water swimmers dominate the coast.
Kabira Bay sea temperature history
Long-term climatology for Kabira Bay shows an annual mean sea temperature of 21°C, ranging from 20°C in winter to 23°C at the summer peak.
The seasonal swing is roughly 3°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Kabira Bay, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Kabira Bay sea temperature: frequently asked questions
What is the warmest month to swim in Kabira Bay?
July is the warmest month in Kabira Bay, when the sea averages about 23°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Kabira Bay?
The coldest month in Kabira Bay is typically January, when the water averages around 20°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Kabira Bay without a wetsuit?
The main swimming season in Kabira Bay runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Kabira Bay?
Outside peak summer the water in Kabira Bay drops toward 20°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Kabira Bay?
The long-term annual mean sea temperature in Kabira Bay is about 21°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Kabira Bay?
The live reading at the top of this page shows the current sea temperature in Kabira Bay, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: Jan – Feb – Mar – Apr – May – Jun – Jul – Aug – Sep – Oct – Nov – Dec
| Month | Sea | Comfort |
|---|---|---|
| Jan | 20°C | Pleasant |
| Feb | 20°C | Pleasant |
| Mar | 20°C | Pleasant |
| Apr | 20°C | Pleasant |
| May | 21°C | Pleasant |
| Jun | 22°C | Warm |
| Jul ⭐ | 23°C | Warm |
| Aug | 23°C | Warm |
| Sep | 23°C | Warm |
| Oct | 22°C | Warm |
| Nov | 21°C | Pleasant |
| Dec | 20°C | Pleasant |