Jellyfish at Loh Dalum Bay

อ่าวโละดาลัม · Koh Phi Phi · Andaman Sea

Risk today · 25 Oct 2026Low

Main factor: Calm water and rain

No jellyfish reports; conditions are typical for the season.

Today the jellyfish risk at Loh Dalum Bay Beach is low. Main factor: calm water and rain. 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. TodayLow6 m/s NW — Wind: up to 6 m/s, blowing from NW. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.4 m — Waves: up to 0.4 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.31 mm — Rain: 31 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  2. TomorrowModerate4 m/s W — Wind: up to 4 m/s, blowing from W. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.5 m — Waves: up to 0.5 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.19 mm — Rain: 19 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  3. Tue 27Moderate5 m/s SW — Wind: up to 5 m/s, blowing from SW. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.5 m — Waves: up to 0.5 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.38 mm — Rain: 38 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  4. Wed 28Low5 m/s S — Wind: up to 5 m/s, blowing from S. 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.29 mm — Rain: 29 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  5. Thu 29Low5 m/s SE — Wind: up to 5 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.34 mm — Rain: 34 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  6. Fri 30Low6 m/s E — Wind: up to 6 m/s, blowing from E. 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.10 mm — Rain: 10 mm in the day. Box jellyfish are more common near river mouths after heavy rain.

Why this level

  • Box jellyfish Lowlowers risk
    below usual for the season
  • Other jellyfish and stinging plankton Lowusual background
    jellyfish season in this area, usual for the season
  • Bluebottles (Portuguese man o’ war) Lowusual background
    bluebottle season, usual for the season

It is not jellyfish season in Koh Phi Phi, the wind blows from the sea (~2.8 m/s), stronger than usual, the sea is calm (waves ~0.4 m), so the risk level is low. 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.

Loh Dalum Bay: jellyfish month by month

  1. January: Usually moderate risk. High risk on 0% of days. Onshore wind on 73% of days. Official warnings: 0. Eyewitness reports: 1.
  2. February: Usually moderate risk. High risk on 0% of days. Onshore wind on 51% of days. Official warnings: 0.
  3. March: Usually moderate risk. High risk on 1% of days. Onshore wind on 48% of days. Official warnings: 0. Eyewitness reports: 7.
  4. April: Usually moderate risk. High risk on 13% of days. Onshore wind on 60% of days. Official warnings: 0.
  5. May: Usually moderate risk. High risk on 21% of days. Onshore wind on 65% of days. Official warnings: 0.
  6. June: Usually moderate risk. High risk on 9% of days. Onshore wind on 66% of days. Official warnings: 0.
  7. July: Usually moderate risk. High risk on 1% of days. Onshore wind on 70% of days. Official warnings: 0.
  8. August: Usually moderate risk. High risk on 5% of days. Onshore wind on 68% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 1% of days. Onshore wind on 79% of days. Official warnings: 0.
  10. October: Usually moderate risk. High risk on 0% of days. Onshore wind on 86% of days. Official warnings: 0.
  11. November: Usually moderate risk. High risk on 0% of days. Onshore wind on 95% of days. Official warnings: 0.
  12. December: Usually low risk. High risk on 0% of days. Onshore wind on 98% of days. Official warnings: 0.
  • Low
  • Moderate
  • High
  • Very high

Colour shows the typical risk level that month; the number is the share of high-risk days. Warnings and sightings are in each month’s tooltip.

Coordinates: 7.7408, 98.7694

Questions and answers

Can I swim at Loh Dalum Bay today?

Today's estimated risk is low; main factor: calm water and rain. 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 Loh Dalum Bay 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 Loh Dalum Bay?

Based on 2022–2026 weather, the risk is most often elevated in March, April, May. 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.