Okinawa, Japan

Set in an ocean-tempered climate, Okinawa (Japan) is best understood through its weather data: our 2015–2024 climate record puts its peak at an 85/100 sun score in July, exactly the kind of reliability you want for a beach trip.

The year runs from average lows of 16°C in January to highs of 31°C in August. On the rain ledger, January is the safest bet at a 36% chance of a wet day, while September climbs to 73%. The genuinely warm window — average highs of 24°C or better — covers May–November.

The seasonal arc is clear in the data: summer averages 30°C against winter's 20°C, while rain-day odds move from 38% in winter and 50% in spring to 70% in summer and 51% through autumn. Autumn wins on the numbers and winter loses them; everything in between is a trade-off between warmth and crowds. For warmth without the densest crowds, the shoulder play is November: still 25°C highs, with a sun score of 82.

Best months to visit Okinawa

The best month on record is July — an 85/100 sun score, built on 64% cloud cover and 70% rain-day odds — followed by August and October. In practice you have flexibility — January–December all stay above a 70 sun score. At the other end, January scores just 70, the weakest month of the year.

Put against its 73 ocean peers in July, it lands below the group median for sunshine, ahead of 25% of them.

Month-by-month breakdown for Okinawa → · More destinations for July →

As of the latest refresh, Okinawa's next 16 days span 19°C to 28°C; 7 days look mostly sunny while 2 look likely to be wet — a live sun score of 95/100.