# Vavaʻu snorkeling forecast Vavaʻu looks marginal today. The least-bad daylight window is around Mon 12:00, but waves is limiting the forecast. - Location: Vavaʻu, Tonga - Timezone: Pacific/Tongatapu - Valid period: next 72 hours from 2026-09-21T06:56:27.492413+13:00 - Verdict: Marginal - Score: 2.8/10 - Share of next 72h scored OK: 0% - Source: snapshot - Generated at: 2026-09-21T05:05:30.241562+13:00 - Conditions can change. HTML page: https://snorkelforecast.com/tonga/vavau/ - Forecast JSON: https://snorkelforecast.com/tonga/vavau/forecast.json - Sea temperature: https://snorkelforecast.com/tonga/vavau/sea-temperature/ - Sea temperature markdown: https://snorkelforecast.com/tonga/vavau/sea-temperature.md - History JSON: https://snorkelforecast.com/tonga/vavau/history.json - Embed widget: https://snorkelforecast.com/tonga/vavau/embed/sea-temperature/ - Current sea temperature: 25.0 °C (77.0 °F) - Baseline normal for month 9: 25.1 °C (77.2 °F) from 3 sample years - Sea temperature versus month 9 normal: -0.1 °C (-0.2 °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 | | --- | --- | --- | --- | --- | --- | --- | | 2026-09-21T07:00:00+13:00 | poor | 0.2518018518518519 | no | 1.24 | 7.21 | 25.0 | | 2026-09-21T08:00:00+13:00 | poor | 0.2457407407407407 | no | 1.24 | 7.42 | 25.0 | | 2026-09-21T09:00:00+13:00 | poor | 0.23046296296296298 | no | 1.26 | 8.08 | 25.1 | | 2026-09-21T10:00:00+13:00 | poor | 0.24079999999999996 | no | 1.26 | 8.1 | 25.1 | | 2026-09-21T11:00:00+13:00 | poor | 0.2524537037037037 | no | 1.24 | 7.13 | 25.1 | | 2026-09-21T12:00:00+13:00 | poor | 0.2843240740740741 | no | 1.22 | 6.79 | 25.1 | | 2026-09-21T13:00:00+13:00 | poor | 0.0 | no | 1.2 | 7.13 | 25.1 | | 2026-09-21T14:00:00+13:00 | poor | 0.0 | no | 1.18 | 7.63 | 25.1 | | 2026-09-21T15:00:00+13:00 | poor | 0.0 | no | 1.18 | 7.41 | 25.1 | | 2026-09-21T16:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.47 | 25.1 | | 2026-09-21T17:00:00+13:00 | poor | 0.0 | no | 1.16 | 6.82 | 25.1 | | 2026-09-21T18:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.0 | 25.1 | | 2026-09-21T19:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.62 | 25.1 | | 2026-09-21T20:00:00+13:00 | poor | 0.0 | no | 1.16 | 8.69 | 25.1 | | 2026-09-21T21:00:00+13:00 | poor | 0.0 | no | 1.16 | 9.14 | 25.1 | | 2026-09-21T22:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.78 | 25.0 | | 2026-09-21T23:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.56 | 25.0 | | 2026-09-22T00:00:00+13:00 | poor | 0.0 | no | 1.16 | 7.27 | 25.0 | | 2026-09-22T01:00:00+13:00 | poor | 0.0 | no | 1.16 | 6.87 | 25.0 | | 2026-09-22T02:00:00+13:00 | poor | 0.0 | no | 1.14 | 6.38 | 25.0 | | 2026-09-22T03:00:00+13:00 | poor | 0.0 | no | 1.12 | 6.9 | 25.0 | | 2026-09-22T04:00:00+13:00 | poor | 0.0 | no | 1.1 | 6.15 | 25.0 | | 2026-09-22T05:00:00+13:00 | poor | 0.0 | no | 1.08 | 6.98 | 25.0 | | 2026-09-22T06:00:00+13:00 | poor | 0.0 | no | 1.08 | 6.45 | 25.0 |