Okinawa (Naha) August weather
Okinawa (Naha), Japan · August
Hottest sea, strongest UV, and high chance of squalls
August is the peak of summer in Okinawa. Sea temperature and colors are fantastic, but UV levels and the risk of typhoons are also at their peak.
Daytime highs around 30-32°C and warm nights keep it in full summer mode, while short, intense showers and strong winds are common.
August averages at a glance
Average low
around 26-27°C
Average high
around 30-32°C
Average rainfall
around 150-200 mm (can spike with typhoons)
Rainy days
around 10-13 days
What to wear in August in Okinawa (Naha)
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Very light T-shirts or tank tops, swimsuits, rash guards, and summer dresses are standard.
- • Bring multiple sets of beachwear and quick-dry clothing, since you will sweat and get wet often.
- • Sun protection gear—hats, sunglasses, UPF clothing—is just as important as your swimsuit.
Travel tips for visiting Okinawa (Naha) in August
- • Avoid long stretches of midday sun; plan marine activities for earlier or later in the day and use mid-day for air-conditioned rest.
- • Double-check marine tour and boat policies around bad weather, and always have backup land-based activities ready.
- • Typhoons can lead to sudden plan changes, so keep your itinerary flexible and avoid booking too many non-refundable items.
August weather in Okinawa (Naha) — FAQ
Q. Is August the best time for sea color and visibility?
A. Yes, August often offers the most vivid sea colors and warmest water, but you pay for it with stronger sun and higher typhoon risk.
Q. Can I bring children in August?
A. Yes, many families visit then, but you need to be extra careful about sunburn, hydration, and scheduling naps and breaks.
Q. What happens if a typhoon hits during my trip?
A. Flights and marine activities may be canceled or delayed, and you may need to stay indoors for a day or two. Having travel insurance and “indoor chill” days planned will reduce stress.
Authored by Jiheon Bang
Updated: 2025-12-01
Reviewed using Visual Crossing Weather data and reorganized from a traveler’s perspective.
Weather data is designed to be refreshed roughly every 10 minutes.