Jellyfish at Nual Beach (Monkey Beach)

หาดนวล · Koh Larn · Gulf of Thailand

Risk today · 25 Oct 2026Moderate

Main factor: Onshore wind

Conditions or reports nearby make an encounter more likely.

Today the jellyfish risk at Nual Beach (Monkey Beach) Beach is moderate. Main factor: 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. TodayModerate5 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.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.2 mm — Rain: 2 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  2. TomorrowModerate5 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.5 mm — Rain: 5 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  3. Tue 27Moderate6 m/s NE — Wind: up to 6 m/s, blowing from NE. 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.3 mm — Rain: 3 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  4. Wed 28Moderate7 m/s NE — Wind: up to 7 m/s, blowing from NE. 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.2 mm — Rain: 2 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.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.13 mm — Rain: 13 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
  6. Fri 30Moderate6 m/s NE — Wind: up to 6 m/s, blowing from NE. 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.

Why this level

  • Other jellyfish and stinging plankton Moderateraises risk
    above usual for the season · onshore wind
  • Bluebottles (Portuguese man o’ war) Moderateraises risk
    above usual for the season · steady onshore wind for 3 days · onshore wind
  • Box jellyfish Lowusual background
    calm water and rain, usual for the season

October is an average month for jellyfish on the eastern Gulf coast, the wind blows from the sea (~3.5 m/s), stronger than usual, the wind has blown from the sea for 3 days in a row, which is how bluebottles usually arrive, 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.

Nual Beach (Monkey Beach): jellyfish month by month

  1. January: Usually moderate risk. High risk on 0% of days. Onshore wind on 33% of days. Official warnings: 0.
  2. February: Usually moderate risk. High risk on 15% of days. Onshore wind on 70% of days. Official warnings: 0.
  3. March: Usually moderate risk. High risk on 29% of days. Onshore wind on 90% of days. Official warnings: 0.
  4. April: Usually moderate risk. High risk on 0% of days. Onshore wind on 92% of days. Official warnings: 0.
  5. May: Usually moderate risk. High risk on 0% of days. Onshore wind on 95% of days. Official warnings: 0.
  6. June: Usually moderate risk. High risk on 1% of days. Onshore wind on 93% of days. Official warnings: 0. Eyewitness reports: 1.
  7. July: Usually moderate risk. High risk on 22% of days. Onshore wind on 90% of days. Official warnings: 0.
  8. August: Usually moderate risk. High risk on 23% of days. Onshore wind on 92% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 12% of days. Onshore wind on 73% of days. Official warnings: 0.
  10. October: Usually moderate risk. High risk on 12% of days. Onshore wind on 33% of days. Official warnings: 0. Eyewitness reports: 1.
  11. November: Usually moderate risk. High risk on 3% of days. Onshore wind on 13% of days. Official warnings: 0.
  12. December: Usually moderate risk. High risk on 0% of days. Onshore wind on 0% 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: 12.8998, 100.7772

Questions and answers

Can I swim at Nual Beach (Monkey Beach) today?

Today's estimated risk is moderate; main factor: 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 Nual Beach (Monkey 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 Nual Beach (Monkey 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.