Jellyfish in Koh Yao
Today no beach in Koh Yao has a high jellyfish risk: the highest level is low. It is an estimate, not a guarantee: follow beach flags and lifeguards.
Phang Nga · Andaman Sea · 4 beaches in this area. Level is today's estimated risk.

Beaches
- Laem Had Beach (Koh Yao Yai)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Loh Ha Beach (Koh Yao Yai)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Loh Pared Beach (Koh Yao Yai)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
- Ao Klong Son (Koh Yao Yai)LowCalm water and rainTomorrowTue 27Wed 28Thu 29Fri 30
Koh Yao: jellyfish month by month
- January: Usually moderate risk. High risk on 0% of days. Onshore wind on 43% of days. Official warnings: 0. Eyewitness reports: 2.
- February: Usually moderate risk. High risk on 0% of days. Onshore wind on 43% of days. Official warnings: 0.
- March: Usually moderate risk. High risk on 1% of days. Onshore wind on 44% of days. Official warnings: 0.
- April: Usually moderate risk. High risk on 12% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 3.
- May: Usually moderate risk. High risk on 10% of days. Onshore wind on 43% of days. Official warnings: 0.
- June: Usually moderate risk. High risk on 13% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 1.
- July: Usually moderate risk. High risk on 6% of days. Onshore wind on 43% of days. Official warnings: 0.
- August: Usually moderate risk. High risk on 6% of days. Onshore wind on 40% of days. Official warnings: 0.
- September: Usually moderate risk. High risk on 9% of days. Onshore wind on 37% of days. Official warnings: 0.
- October: Usually moderate risk. High risk on 0% of days. Onshore wind on 35% of days. Official warnings: 0.
- November: Usually low risk. High risk on 0% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 1.
- December: Usually low risk. High risk on 0% of days. Onshore wind on 46% 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.
Questions and answers
Are there jellyfish in Koh Yao right now?
Today across 4 beaches: low — 4. The highest risk is at Laem Had Beach (Koh Yao Yai) (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 Yao?
Based on 2022–2026 weather, the risk in Koh Yao is most often elevated in March, April, May. Official DMCR warnings nearby: 0.
Which beaches in Koh Yao have the lowest risk today?
Lowest estimate today: Ao Klong Son (Koh Yao Yai), Loh Pared Beach (Koh Yao Yai), Loh Ha Beach (Koh Yao Yai). 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 Yao?
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.