Japan
Okinawa in August: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Okinawa in August is climatically well suited to beach holidays. The average daily high is around 29 °C, and the sea is about 29 °C. With about 19 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #12
Warmth
#1
Dryness
#11
Sun
#2
Sea warmth
#1
Published best categories: none
Okinawa · AugustPhoto: Kugel~commonswiki · CC BY-SA 4.0Climate facts
- Average high
- 29 °C
- Average low
- 28 °C
- Sea
- 29 °C
- Rainy days (est.)
- 19 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 82 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| July | 29 | 28 | 16 | 136 | 7.9 | 84 | 5.1 | 29 | 61 |
| August (selected) | 29 | 28 | 19 | 178 | 7.4 | 82 | 5.1 | 29 | 58 |
| September | 29 | 28 | 17 | 176 | 6.4 | 80 | 5.3 | 28 | 62 |
How do the previous and next months compare?
Baseline: August (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| July | +3 | -0.1 °C | -0.1 °C | -2.5 | -42.1 mm | +0.5 h | +1.3 % | ±0 m/s | -0.2 °C |
| September | +4 | -0.6 °C | -0.8 °C | -1.6 | -1.8 mm | -1 h | -2 % | +0.3 m/s | -0.5 °C |
All twelve months in context
Find a place to stay
Where to stay in Okinawa
Compare available stays, prices and cancellation terms for Okinawa on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Okinawa in August?
The average daily high is around 29 °C, with an average daily low of about 28 °C.
Can you swim in Okinawa in August?
The sea is about 29 °C (very warm).
Does it rain a lot in Okinawa in August?
The curated estimate is about 19 rainy days per month, not a directly measured long-term average. Total precipitation averages around 178 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Okinawa?
By the climate score, April, October, November and December are the strongest months for Okinawa. For a beach trip: May, June, October and November. August is not among them.