# Railay snorkeling forecast

Railay has a usable snorkeling window around Sun 10:00. The main thing to watch is sea temperature.

- Location: Railay, Thailand
- Timezone: Asia/Bangkok
- Valid period: next 72 hours from 2026-10-18T09:33:16.348543+07:00
- Verdict: Go in the best window
- Score: 7.8/10
- Share of next 72h scored OK: 49%
- Source: snapshot
- Generated at: 2026-10-18T09:06:43.512319+07:00
- Conditions can change. HTML page: https://snorkelforecast.com/thailand/railay/
- Forecast JSON: https://snorkelforecast.com/thailand/railay/forecast.json
- Sea temperature: https://snorkelforecast.com/thailand/railay/sea-temperature/
- Sea temperature markdown: https://snorkelforecast.com/thailand/railay/sea-temperature.md
- History JSON: https://snorkelforecast.com/thailand/railay/history.json
- Embed widget: https://snorkelforecast.com/thailand/railay/embed/sea-temperature/
- Current sea temperature: 31.6 °C (88.9 °F)
- Baseline normal for month 10: 30.3 °C (86.5 °F) from 3 sample years
- Sea temperature versus month 10 normal: +1.3 °C (+2.3 °F), warmer 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 |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-10-18T10:00:00+07:00 | excellent | 0.7791648148148147 | yes | 0.04 | 0.95 | 31.6 |
| 2026-10-18T11:00:00+07:00 | excellent | 0.7559444444444443 | yes | 0.04 | 1.02 | 31.6 |
| 2026-10-18T12:00:00+07:00 | excellent | 0.7563555555555556 | yes | 0.04 | 1.08 | 31.7 |
| 2026-10-18T13:00:00+07:00 | good | 0.6797962962962962 | yes | 0.04 | 4.18 | 31.7 |
| 2026-10-18T14:00:00+07:00 | excellent | 0.7477555555555555 | yes | 0.04 | 0.81 | 31.7 |
| 2026-10-18T15:00:00+07:00 | excellent | 0.7208611111111111 | yes | 0.04 | 1.92 | 31.7 |
| 2026-10-18T16:00:00+07:00 | excellent | 0.7389592592592592 | yes | 0.04 | 1.19 | 31.7 |
| 2026-10-18T17:00:00+07:00 | excellent | 0.7264074074074073 | yes | 0.04 | 1.81 | 31.6 |
| 2026-10-18T18:00:00+07:00 | excellent | 0.7556166666666665 | yes | 0.04 | 0.6 | 31.6 |
| 2026-10-18T19:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.39 | 31.6 |
| 2026-10-18T20:00:00+07:00 | poor | 0.0 | no | 0.04 | 0.92 | 31.6 |
| 2026-10-18T21:00:00+07:00 | poor | 0.0 | no | 0.04 | 0.45 | 31.5 |
| 2026-10-18T22:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.62 | 31.5 |
| 2026-10-18T23:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.58 | 31.5 |
| 2026-10-19T00:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.5 | 31.5 |
| 2026-10-19T01:00:00+07:00 | poor | 0.0 | no | 0.04 | 0.95 | 31.5 |
| 2026-10-19T02:00:00+07:00 | poor | 0.0 | no | 0.04 | 0.32 | 31.4 |
| 2026-10-19T03:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.51 | 31.4 |
| 2026-10-19T04:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.47 | 31.4 |
| 2026-10-19T05:00:00+07:00 | poor | 0.0 | no | 0.04 | 0.36 | 31.3 |
| 2026-10-19T06:00:00+07:00 | poor | 0.0 | no | 0.04 | 1.08 | 31.3 |
| 2026-10-19T07:00:00+07:00 | excellent | 0.7433203703703702 | yes | 0.04 | 1.52 | 31.3 |
| 2026-10-19T08:00:00+07:00 | excellent | 0.7588296296296296 | yes | 0.04 | 0.85 | 31.3 |
| 2026-10-19T09:00:00+07:00 | excellent | 0.7405092592592593 | yes | 0.04 | 1.46 | 31.4 |

## Nearby spots

- [Koh Kradan](https://snorkelforecast.com/thailand/koh-kradan/index.md)
- [Koh Lipe](https://snorkelforecast.com/thailand/koh-lipe/index.md)
- [Koh Phi Phi](https://snorkelforecast.com/thailand/koh-phi-phi/index.md)
- [Koh Tao](https://snorkelforecast.com/thailand/koh-tao/index.md)