Jellyfish in Koh Lanta
Today no beach in Koh Lanta has a high jellyfish risk: the highest level is low. It is an estimate, not a guarantee: follow beach flags and lifeguards.
Krabi · Andaman Sea · 8 beaches in this area. Level is today's estimated risk.

Beaches
- Long Beach (Phra Ae)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Klong Dao BeachLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Klong Khong BeachLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Klong Nin BeachLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Bamboo BayLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Kantiang BayLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Klong Jaak BeachLowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Nui Beach (Koh Lanta)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
Koh Lanta: jellyfish month by month
- January: Usually moderate risk. High risk on 2% of days. Onshore wind on 1% of days. Official warnings: 0. Eyewitness reports: 6.
- February: Usually moderate risk. High risk on 1% of days. Onshore wind on 5% of days. Official warnings: 0. Eyewitness reports: 12.
- March: Usually moderate risk. High risk on 1% of days. Onshore wind on 17% of days. Official warnings: 0. Eyewitness reports: 8.
- April: Usually moderate risk. High risk on 18% of days. Onshore wind on 58% of days. Official warnings: 1. Eyewitness reports: 11.
- May: Usually moderate risk. High risk on 24% of days. Onshore wind on 71% of days. Official warnings: 0. Eyewitness reports: 4.
- June: Usually moderate risk. High risk on 1% of days. Onshore wind on 95% of days. Official warnings: 0. Eyewitness reports: 19.
- July: Usually moderate risk. High risk on 0% of days. Onshore wind on 98% of days. Official warnings: 0. Eyewitness reports: 6.
- August: Usually moderate risk. High risk on 0% of days. Onshore wind on 99% of days. Official warnings: 0. Eyewitness reports: 3.
- September: Usually moderate risk. High risk on 2% of days. Onshore wind on 96% of days. Official warnings: 0. Eyewitness reports: 2.
- October: Usually moderate risk. High risk on 0% of days. Onshore wind on 63% of days. Official warnings: 0.
- November: Usually moderate risk. High risk on 2% of days. Onshore wind on 22% of days. Official warnings: 0. Eyewitness reports: 5.
- December: Usually low risk. High risk on 1% of days. Onshore wind on 1% of days. Official warnings: 0. Eyewitness reports: 12.
- 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.
Questions and answers
Are there jellyfish in Koh Lanta right now?
Today across 8 beaches: low — 8. The highest risk is at Long Beach (Phra Ae) (calm water and rain). Jellyfish reports in the last 7 days: 0. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.
When is jellyfish season in Koh Lanta?
Based on 2022–2026 weather, the risk in Koh Lanta is most often elevated in March, April, May. Official DMCR warnings nearby: 1.
Which beaches in Koh Lanta have the lowest risk today?
Lowest estimate today: Bamboo Bay, Kantiang Bay, Klong Jaak Beach. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.
Which dangerous jellyfish occur in Koh Lanta?
Recorded on this coast: Thai box jellyfish (Chironex), Chiropsoides box jellyfish, Morbakka (single-tentacle box jellyfish), Portuguese man o’ war (bluebottle), Sea nettle (fire jellyfish).
What should I do if a jellyfish stings me in Thailand?
Get out of the water. Call 1669 for trouble breathing, chest pain or collapse. Do not rub the sting and do not rinse it with fresh water. If a box jellyfish is possible, pour vinegar over the sting for at least 30 seconds.