# Surin Islands snorkeling forecast

Surin Islands has a usable snorkeling window around Sat 10:00. The main thing to watch is sea temperature.

- Location: Surin Islands, Thailand
- Timezone: Asia/Bangkok
- Valid period: next 72 hours from 2026-10-17T09:35:48.610306+07:00
- Verdict: Go in the best window
- Score: 7.4/10
- Share of next 72h scored OK: 44%
- Source: snapshot
- Generated at: 2026-10-17T08:01:36.484976+07:00
- Conditions can change. HTML page: https://snorkelforecast.com/thailand/surin-islands/
- Forecast JSON: https://snorkelforecast.com/thailand/surin-islands/forecast.json
- Sea temperature: https://snorkelforecast.com/thailand/surin-islands/sea-temperature/
- Sea temperature markdown: https://snorkelforecast.com/thailand/surin-islands/sea-temperature.md
- History JSON: https://snorkelforecast.com/thailand/surin-islands/history.json
- Embed widget: https://snorkelforecast.com/thailand/surin-islands/embed/sea-temperature/
- Current sea temperature: 30.5 °C (86.9 °F)
- Baseline normal for month 10: 29.2 °C (84.6 °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 |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-10-17T10:00:00+07:00 | good | 0.6480962962962963 | yes | 0.4 | 3.64 | 30.5 |
| 2026-10-17T11:00:00+07:00 | good | 0.6679388888888887 | yes | 0.4 | 3.69 | 30.6 |
| 2026-10-17T12:00:00+07:00 | excellent | 0.7384537037037036 | yes | 0.38 | 2.93 | 30.7 |
| 2026-10-17T13:00:00+07:00 | good | 0.6795111111111111 | yes | 0.38 | 2.34 | 30.8 |
| 2026-10-17T14:00:00+07:00 | good | 0.6276370370370369 | yes | 0.38 | 2.3 | 30.8 |
| 2026-10-17T15:00:00+07:00 | fair | 0.5377425925925924 | no | 0.36 | 2.21 | 30.8 |
| 2026-10-17T16:00:00+07:00 | fair | 0.5368925925925925 | no | 0.36 | 2.48 | 30.7 |
| 2026-10-17T17:00:00+07:00 | fair | 0.543812962962963 | no | 0.36 | 1.87 | 30.7 |
| 2026-10-17T18:00:00+07:00 | good | 0.6363111111111109 | yes | 0.34 | 0.75 | 30.6 |
| 2026-10-17T19:00:00+07:00 | poor | 0.0 | no | 0.34 | 0.97 | 30.6 |
| 2026-10-17T20:00:00+07:00 | poor | 0.0 | no | 0.34 | 1.17 | 30.5 |
| 2026-10-17T21:00:00+07:00 | poor | 0.0 | no | 0.34 | 1.54 | 30.5 |
| 2026-10-17T22:00:00+07:00 | poor | 0.0 | no | 0.34 | 1.93 | 30.4 |
| 2026-10-17T23:00:00+07:00 | poor | 0.0 | no | 0.34 | 2.53 | 30.4 |
| 2026-10-18T00:00:00+07:00 | poor | 0.0 | no | 0.34 | 2.75 | 30.3 |
| 2026-10-18T01:00:00+07:00 | poor | 0.0 | no | 0.34 | 2.18 | 30.3 |
| 2026-10-18T02:00:00+07:00 | poor | 0.0 | no | 0.34 | 2.26 | 30.2 |
| 2026-10-18T03:00:00+07:00 | poor | 0.0 | no | 0.32 | 2.58 | 30.2 |
| 2026-10-18T04:00:00+07:00 | poor | 0.0 | no | 0.32 | 1.55 | 30.2 |
| 2026-10-18T05:00:00+07:00 | poor | 0.0 | no | 0.32 | 2.28 | 30.2 |
| 2026-10-18T06:00:00+07:00 | poor | 0.0 | no | 0.32 | 2.67 | 30.2 |
| 2026-10-18T07:00:00+07:00 | good | 0.5906481481481481 | yes | 0.32 | 3.35 | 30.2 |
| 2026-10-18T08:00:00+07:00 | good | 0.6139351851851852 | yes | 0.32 | 2.83 | 30.2 |
| 2026-10-18T09:00:00+07:00 | good | 0.6359259259259259 | yes | 0.32 | 1.88 | 30.3 |

## 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)