# Okinawa - Blue Cave snorkeling forecast

Okinawa - Blue Cave has a usable snorkeling window around Mon 09:00. The main thing to watch is waves.

- Location: Okinawa - Blue Cave, Japan
- Timezone: Asia/Tokyo
- Valid period: next 72 hours from 2026-10-19T07:13:32.472782+09:00
- Verdict: Go in the best window
- Score: 6.5/10
- Share of next 72h scored OK: 12%
- Source: snapshot
- Generated at: 2026-10-19T04:28:49.226614+09:00
- Conditions can change. HTML page: https://snorkelforecast.com/japan/okinawa-blue-cave/
- Forecast JSON: https://snorkelforecast.com/japan/okinawa-blue-cave/forecast.json
- Sea temperature: https://snorkelforecast.com/japan/okinawa-blue-cave/sea-temperature/
- Sea temperature markdown: https://snorkelforecast.com/japan/okinawa-blue-cave/sea-temperature.md
- History JSON: https://snorkelforecast.com/japan/okinawa-blue-cave/history.json
- Embed widget: https://snorkelforecast.com/japan/okinawa-blue-cave/embed/sea-temperature/
- Current sea temperature: 27.8 °C (82.0 °F)
- Baseline normal for month 10: 28.5 °C (83.3 °F) from 3 sample years
- Sea temperature versus month 10 normal: -0.7 °C (-1.3 °F), cooler than the stored baseline
- Scoring thresholds: waves <= 0.36 m, wind <= 5.4 m/s, current <= 0.36 m/s, water 20.6-30.4 °C. Forecast thresholds, not official safety limits.

## Next 24 hours

| time | rating | score | ok | waves_m | wind_mps | sst_c |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-10-19T08:00:00+09:00 | poor | 0.0 | no | 0.44 | 3.51 | 27.8 |
| 2026-10-19T09:00:00+09:00 | good | 0.6414777777777777 | yes | 0.42 | 3.48 | 27.8 |
| 2026-10-19T10:00:00+09:00 | good | 0.6229962962962962 | yes | 0.42 | 3.76 | 27.9 |
| 2026-10-19T11:00:00+09:00 | good | 0.608724074074074 | yes | 0.4 | 4.33 | 28.0 |
| 2026-10-19T12:00:00+09:00 | good | 0.6470388888888889 | yes | 0.4 | 4.23 | 28.1 |
| 2026-10-19T13:00:00+09:00 | good | 0.6476481481481481 | yes | 0.4 | 4.1 | 28.2 |
| 2026-10-19T14:00:00+09:00 | fair | 0.5493074074074074 | no | 0.42 | 3.82 | 28.3 |
| 2026-10-19T15:00:00+09:00 | fair | 0.5214333333333333 | no | 0.42 | 3.78 | 28.4 |
| 2026-10-19T16:00:00+09:00 | fair | 0.5210129629629628 | no | 0.42 | 3.85 | 28.4 |
| 2026-10-19T17:00:00+09:00 | good | 0.6379388888888888 | yes | 0.44 | 3.66 | 28.3 |
| 2026-10-19T18:00:00+09:00 | poor | 0.0 | no | 0.44 | 3.03 | 28.2 |
| 2026-10-19T19:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.8 | 28.1 |
| 2026-10-19T20:00:00+09:00 | poor | 0.0 | no | 0.46 | 2.55 | 28.0 |
| 2026-10-19T21:00:00+09:00 | poor | 0.0 | no | 0.46 | 2.51 | 28.0 |
| 2026-10-19T22:00:00+09:00 | poor | 0.0 | no | 0.46 | 2.38 | 27.9 |
| 2026-10-19T23:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.27 | 27.9 |
| 2026-10-20T00:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.4 | 27.9 |
| 2026-10-20T01:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.18 | 27.9 |
| 2026-10-20T02:00:00+09:00 | poor | 0.0 | no | 0.42 | 2.73 | 27.9 |
| 2026-10-20T03:00:00+09:00 | poor | 0.0 | no | 0.42 | 2.73 | 27.9 |
| 2026-10-20T04:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.8 | 27.9 |
| 2026-10-20T05:00:00+09:00 | poor | 0.0 | no | 0.44 | 2.91 | 27.8 |
| 2026-10-20T06:00:00+09:00 | poor | 0.0 | no | 0.46 | 2.93 | 27.8 |
| 2026-10-20T07:00:00+09:00 | poor | 0.0 | no | 0.46 | 3.13 | 27.8 |

## Nearby spots

- [Ishigaki](https://snorkelforecast.com/japan/ishigaki/index.md)
- [Kerama Islands](https://snorkelforecast.com/japan/kerama-islands/index.md)
- [Miyako](https://snorkelforecast.com/japan/miyako/index.md)