Jellyfish forecast for Thailand: 5 days
Today, out of 195 Thai beaches, 1 have a high jellyfish risk and 132 a moderate one. Highest estimate: Talo Samilae Beach (Pattani). It is an estimate, not a guarantee: follow beach flags and lifeguards.
Today across Thailand
Low × 62Moderate × 132High × 1Very high × 0
Highest risk today
- Talo Samilae Beach (Pattani) — High
- Koh Wua Talab (Ang Thong) (Ang Thong Marine Park) — Moderate
- Bo Thong Lang Beach (Prachuap Khiri Khan) — Moderate
- Sai Ri Beach (Chumphon) (Chumphon) — Moderate
- Ao Cho (Koh Samet) — Moderate
- Ao Wong Duan (Koh Samet) — Moderate
- Ao Phai (Koh Samet) — Moderate
- Haad Rin (Sunrise Beach) (Koh Phangan) — Moderate
- Thong Nai Pan Noi (Koh Phangan) — Moderate
- Thong Nai Pan Yai (Koh Phangan) — Moderate
Jellyfish drift tracks followed: 0.
5-day forecast by coast
Each cell shows the highest level among the beaches of that coast on that day and how many beaches are at high risk.
| Coast | Today | Tomorrow | Tue 27 | Wed 28 | Thu 29 | Fri 30 |
|---|---|---|---|---|---|---|
| Andaman Sea | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Gulf of Thailand | High · high: 1 | Moderate | High · high: 7 | High · high: 2 | High · high: 7 | High · high: 11 |
| Phuket's west coast | Moderate | Moderate | Moderate | Moderate | Low | Moderate |
| Phuket's east coast | Moderate | Moderate | Moderate | Low | Moderate | Moderate |
| Eastern Gulf coast | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Western Gulf coast | Moderate | Moderate | High · high: 7 | High · high: 2 | High · high: 1 | High · high: 1 |
| Samui archipelago | Moderate | Moderate | Moderate | Moderate | High · high: 2 | High · high: 4 |
| Southern Gulf (Songkhla, Pattani, Narathiwat) | High · high: 1 | Moderate | Moderate | Moderate | High · high: 4 | High · high: 4 |
"No jellyfish" reports matter as much as sightings: without them accuracy cannot be measured. Report jellyfish →
Questions and answers
How is the jellyfish forecast calculated?
A seasonal baseline + onshore wind and waves over 48 hours (and how far above the beach’s norm they are) + calm sea + recent official and verified reports nearby + drift of sighted jellyfish with currents − "no jellyfish" reports.
How often is the data updated?
Weather and current forecasts every 6 hours, official DMCR warnings every 3 hours, beachgoer reports immediately.
Is this a safety guarantee?
It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.