# Grand Cayman snorkeling forecast

Grand Cayman has no good model window later today. Check the three-day outlook and official beach advisories.

- Location: Grand Cayman, Cayman Islands
- Timezone: America/Cayman
- Valid period: next 72 hours from 2026-10-16T21:35:48.825646-05:00
- Verdict: Poor
- Score: 0.0/10
- Share of next 72h scored OK: 0%
- Source: snapshot
- Generated at: 2026-10-16T20:01:46.895822-05:00
- Conditions can change. HTML page: https://snorkelforecast.com/cayman-islands/grand-cayman/
- Forecast JSON: https://snorkelforecast.com/cayman-islands/grand-cayman/forecast.json
- Sea temperature: https://snorkelforecast.com/cayman-islands/grand-cayman/sea-temperature/
- Sea temperature markdown: https://snorkelforecast.com/cayman-islands/grand-cayman/sea-temperature.md
- History JSON: https://snorkelforecast.com/cayman-islands/grand-cayman/history.json
- Embed widget: https://snorkelforecast.com/cayman-islands/grand-cayman/embed/sea-temperature/
- Current sea temperature: 29.9 °C (85.8 °F)
- Baseline normal for month 10: 30.4 °C (86.7 °F) from 3 sample years
- Sea temperature versus month 10 normal: -0.5 °C (-0.9 °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 |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-10-16T22:00:00-05:00 | poor | 0.0 | no | 0.98 | 4.25 | 29.9 |
| 2026-10-16T23:00:00-05:00 | poor | 0.0 | no | 0.98 | 4.29 | 29.9 |
| 2026-10-17T00:00:00-05:00 | poor | 0.0 | no | 0.96 | 3.81 | 29.9 |
| 2026-10-17T01:00:00-05:00 | poor | 0.0 | no | 0.96 | 3.98 | 29.8 |
| 2026-10-17T02:00:00-05:00 | poor | 0.0 | no | 0.96 | 3.98 | 29.8 |
| 2026-10-17T03:00:00-05:00 | poor | 0.0 | no | 0.98 | 4.22 | 29.8 |
| 2026-10-17T04:00:00-05:00 | poor | 0.0 | no | 0.98 | 6.26 | 29.7 |
| 2026-10-17T05:00:00-05:00 | poor | 0.0 | no | 0.98 | 5.08 | 29.7 |
| 2026-10-17T06:00:00-05:00 | poor | 0.0 | no | 0.98 | 5.51 | 29.7 |
| 2026-10-17T07:00:00-05:00 | fair | 0.35902037037037043 | no | 0.98 | 5.06 | 29.7 |
| 2026-10-17T08:00:00-05:00 | fair | 0.3543907407407408 | no | 0.98 | 5.26 | 29.8 |
| 2026-10-17T09:00:00-05:00 | fair | 0.37975000000000003 | no | 0.98 | 4.32 | 29.8 |
| 2026-10-17T10:00:00-05:00 | poor | 0.32413333333333333 | no | 0.98 | 4.5 | 29.9 |
| 2026-10-17T11:00:00-05:00 | poor | 0.3305055555555555 | no | 0.96 | 3.81 | 30.0 |
| 2026-10-17T12:00:00-05:00 | poor | 0.34485740740740733 | no | 0.94 | 3.19 | 30.0 |
| 2026-10-17T13:00:00-05:00 | fair | 0.35716851851851855 | no | 0.92 | 2.71 | 30.1 |
| 2026-10-17T14:00:00-05:00 | fair | 0.3604092592592592 | no | 0.9 | 2.57 | 30.1 |
| 2026-10-17T15:00:00-05:00 | fair | 0.3818018518518518 | no | 0.88 | 2.89 | 30.1 |
| 2026-10-17T16:00:00-05:00 | fair | 0.3888796296296296 | no | 0.86 | 3.31 | 30.1 |
| 2026-10-17T17:00:00-05:00 | poor | 0.3479759259259259 | no | 0.86 | 3.47 | 30.1 |
| 2026-10-17T18:00:00-05:00 | poor | 0.33755925925925917 | no | 0.84 | 3.92 | 30.1 |
| 2026-10-17T19:00:00-05:00 | poor | 0.0 | no | 0.84 | 4.19 | 30.1 |
| 2026-10-17T20:00:00-05:00 | poor | 0.0 | no | 0.84 | 2.8 | 30.1 |
| 2026-10-17T21:00:00-05:00 | poor | 0.0 | no | 0.82 | 2.77 | 30.0 |

## Nearby spots

- [Little Cayman](https://snorkelforecast.com/cayman-islands/little-cayman/index.md)