Jellyfish at Koh Wua Talab (Ang Thong)

เกาะวัวตาหลับ · Ang Thong Marine Park · Gulf of Thailand

Risk today · 24 Oct 2026Moderate

Main factor: Steady onshore wind

Conditions or reports nearby make an encounter more likely.

Today the jellyfish risk at Koh Wua Talab (Ang Thong) Beach is moderate. Main factor: steady onshore wind. In October it is usually moderate here. It is an estimate, not a guarantee: follow beach flags and lifeguards.

What to expect today

5-day outlook

  1. TodayModerate7 m/s W — Wind: up to 7 m/s, blowing from W. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.6 mm — Rain: 6 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  2. TomorrowModerate4 m/s SE — Wind: up to 4 m/s, blowing from SE. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.1 m — Waves: up to 0.1 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.10 mm — Rain: 10 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  3. Mon 26Moderate7 m/s SE — Wind: up to 7 m/s, blowing from SE. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.3 m — Waves: up to 0.3 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.8 mm — Rain: 8 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  4. Tue 27Moderate7 m/s SE — Wind: up to 7 m/s, blowing from SE. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.39 mm — Rain: 39 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  5. Wed 28Moderate4 m/s SE — Wind: up to 4 m/s, blowing from SE. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.1 m — Waves: up to 0.1 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.6 mm — Rain: 6 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  6. Thu 29Moderate5 m/s E — Wind: up to 5 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.20 mm — Rain: 20 mm in the day. Box jellyfish are more common near river mouths after heavy rain.

Why this level

  • Bluebottles (Portuguese man o’ war) Moderateraises risk
    above usual for the season · steady onshore wind · stronger wind than usual
  • Other jellyfish and stinging plankton Moderateraises risk
    above usual for the season · stronger wind than usual · waves toward the shore
  • Box jellyfish Lowusual background
    calm water and rain, usual for the season

October is an average month for jellyfish on the Samui archipelago, the wind blows from the sea (~-0.8 m/s), the sea is calm (waves ~0.2 m), so the risk level is moderate. There are no recent jellyfish reports.

Recent reports

No recent reports.

Report jellyfish

At this beach now? Your report helps others. "No jellyfish today" is useful too.

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Seasonality

Bars show the baseline seasonal risk for this coast; dots show official warnings nearby by month.

Koh Wua Talab (Ang Thong): jellyfish month by month

  1. 0%JanJanuary: Usually moderate risk. High risk on 0% of days. Onshore wind on 100% of days. Official warnings: 0.
  2. 10%FebFebruary: Usually low risk. High risk on 10% of days. Onshore wind on 99% of days. Official warnings: 0.
  3. 16%MarMarch: Usually moderate risk. High risk on 16% of days. Onshore wind on 89% of days. Official warnings: 0.
  4. 0%AprApril: Usually moderate risk. High risk on 0% of days. Onshore wind on 56% of days. Official warnings: 0.
  5. 0%MayMay: Usually moderate risk. High risk on 0% of days. Onshore wind on 30% of days. Official warnings: 0.
  6. 0%JunJune: Usually moderate risk. High risk on 0% of days. Onshore wind on 1% of days. Official warnings: 0.
  7. 6%JulJuly: Usually moderate risk. High risk on 6% of days. Onshore wind on 1% of days. Official warnings: 0.
  8. 8%AugAugust: Usually moderate risk. High risk on 8% of days. Onshore wind on 0% of days. Official warnings: 0.
  9. 12%SepSeptember: Usually moderate risk. High risk on 12% of days. Onshore wind on 3% of days. Official warnings: 0.
  10. 18%OctOctober: Usually moderate risk. High risk on 18% of days. Onshore wind on 45% of days. Official warnings: 0.
  11. 0%NovNovember: Usually moderate risk. High risk on 0% of days. Onshore wind on 83% of days. Official warnings: 0.
  12. 0%DecDecember: Usually moderate risk. High risk on 0% of days. Onshore wind on 100% of days. Official warnings: 0.
  • typical level that month
  • bar and % — share of high-risk days
  • nofficial warnings, all years

Coordinates: 9.6356, 99.6728

Questions and answers

Can I swim at Koh Wua Talab (Ang Thong) today?

Today's estimated risk is moderate; main factor: steady onshore wind. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.

Have jellyfish been seen at Koh Wua Talab (Ang Thong) recently?

No reports in the last 14 days. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.

In which months are jellyfish more likely at Koh Wua Talab (Ang Thong)?

Based on 2022–2026 weather, the risk is most often elevated in July, August, September. Official warnings nearby: 0.

Who do I call after a jellyfish sting?

Emergency medical services in Thailand: 1669 (free). Alert the beach lifeguard; if a box jellyfish is possible, pour vinegar over the sting for at least 30 seconds.