Jellyfish at Ban Krut Beach

หาดบ้านกรูด · Prachuap Khiri Khan · Gulf of Thailand

Risk today · 25 Oct 2026Moderate

Main factor: Waves toward the shore

Conditions or reports nearby make an encounter more likely.

Today the jellyfish risk at Ban Krut Beach is moderate. Main factor: waves toward the shore. 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. TodayModerate3 m/s E — Wind: up to 3 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.0 m — Waves: up to 0.0 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.1 mm — Rain: 1 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  2. TomorrowModerate3 m/s E — Wind: up to 3 m/s, blowing from E. 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.9 mm — Rain: 9 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  3. Tue 27High5 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.0.7 m — Waves: up to 0.7 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.7 mm — Rain: 7 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  4. Wed 28High5 m/s NE — Wind: up to 5 m/s, blowing from NE. 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.8 mm — Rain: 8 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  5. Thu 29Moderate4 m/s NE — Wind: up to 4 m/s, blowing from NE. 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.24 mm — Rain: 24 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  6. Fri 30Moderate4 m/s E — Wind: up to 4 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.26 mm — Rain: 26 mm in the day. Box jellyfish are more common near river mouths after heavy rain.

Why this level

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

October is an average month for jellyfish on the western Gulf coast, the wind is light or along the shore, the sea is calm (waves ~0.1 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.

Ban Krut: jellyfish month by month

  1. January: Usually moderate risk. High risk on 0% of days. Onshore wind on 93% of days. Official warnings: 0.
  2. February: Usually moderate risk. High risk on 2% of days. Onshore wind on 92% of days. Official warnings: 0. Eyewitness reports: 4.
  3. March: Usually moderate risk. High risk on 13% of days. Onshore wind on 87% of days. Official warnings: 0. Eyewitness reports: 4.
  4. April: Usually low risk. High risk on 1% of days. Onshore wind on 67% of days. Official warnings: 0. Eyewitness reports: 1.
  5. May: Usually low risk. High risk on 0% of days. Onshore wind on 33% of days. Official warnings: 0.
  6. June: Usually moderate risk. High risk on 0% of days. Onshore wind on 0% of days. Official warnings: 0.
  7. July: Usually moderate risk. High risk on 28% of days. Onshore wind on 3% of days. Official warnings: 0. Eyewitness reports: 1.
  8. August: Usually moderate risk. High risk on 23% of days. Onshore wind on 0% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 5% of days. Onshore wind on 1% of days. Official warnings: 0.
  10. October: Usually moderate risk. High risk on 18% of days. Onshore wind on 37% of days. Official warnings: 0. Eyewitness reports: 2.
  11. November: Usually moderate risk. High risk on 0% of days. Onshore wind on 60% of days. Official warnings: 0.
  12. December: Usually moderate risk. High risk on 0% of days. Onshore wind on 92% 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: 11.3397, 99.5631

Questions and answers

Can I swim at Ban Krut Beach today?

Today's estimated risk is moderate; main factor: waves toward the shore. 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 Ban Krut Beach 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 Ban Krut Beach?

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.