Jellyfish in Koh Chang in May
May in Koh Chang is a month of moderate risk. The prevailing south-west wind of about 2.4 m/s is blowing from the sea onto the beach; mean waves 0.42 m, water 31.5 °C. Based on 2022–2026 weather the model rates about 0% of days in this month as high risk. Official DMCR jellyfish warnings in May: 0.
Weather and sea in May
| Wind | 2.4 m/s, south-west |
|---|---|
| Onshore wind | 1 m/s |
| Waves | 0.42 m |
| Water | 31.5 °C |
| Rain | 308 mm · 26.8 days |
Beaches this month
| Beaches | Typical risk | Onshore wind | DMCR |
|---|---|---|---|
| Klong Kloi Beach | Moderate | 1.4 | 0 |
| Long Beach (Hat Sai Yao, Koh Chang) | Moderate | 1.1 | 0 |
| Bailan Bay | Moderate | 0.5 | 0 |
| Kai Bae Beach | Moderate | 0.5 | 0 |
| Klong Prao Beach | Moderate | 1 | 0 |
| Lonely Beach (Tha Nam) | Moderate | 1 | 0 |
| White Sand Beach (Koh Chang) | Moderate | 1.2 | 0 |
Official cases in May
No official warnings nearby in this month.
Jellyfish found here
Koh Chang: jellyfish month by month
- 0%Jan4January: Usually moderate risk. High risk on 0% of days. Onshore wind on 39% of days. Official warnings: 0. Eyewitness reports: 4.
- 8%Feb4February: Usually moderate risk. High risk on 8% of days. Onshore wind on 70% of days. Official warnings: 0. Eyewitness reports: 4.
- 13%Mar11March: Usually moderate risk. High risk on 13% of days. Onshore wind on 78% of days. Official warnings: 0. Eyewitness reports: 11.
- 0%Apr7April: Usually low risk. High risk on 0% of days. Onshore wind on 73% of days. Official warnings: 0. Eyewitness reports: 7.
- 0%May2May: Usually moderate risk. High risk on 0% of days. Onshore wind on 74% of days. Official warnings: 0. Eyewitness reports: 2.
- 30%JunJune: Usually moderate risk. High risk on 30% of days. Onshore wind on 99% of days. Official warnings: 0.
- 42%Jul6July: Usually moderate risk. High risk on 42% of days. Onshore wind on 96% of days. Official warnings: 0. Eyewitness reports: 6.
- 48%AugAugust: Usually moderate risk. High risk on 48% of days. Onshore wind on 98% of days. Official warnings: 0.
- 30%SepSeptember: Usually moderate risk. High risk on 30% of days. Onshore wind on 90% of days. Official warnings: 0.
- 22%Oct23October: Usually moderate risk. High risk on 22% of days. Onshore wind on 31% of days. Official warnings: 0. Eyewitness reports: 23.
- 0%Nov23November: Usually moderate risk. High risk on 0% of days. Onshore wind on 10% of days. Official warnings: 0. Eyewitness reports: 23.
- 1%DecDecember: Usually low risk. High risk on 1% of days. Onshore wind on 10% of days. Official warnings: 0.
- typical level that month
- bar and % — share of high-risk days
- nofficial warnings, all years
- neyewitness reports, all years
Questions and answers
Are there jellyfish in Koh Chang in May?
May in Koh Chang is a month of moderate risk. The prevailing south-west wind of about 2.4 m/s is blowing from the sea onto the beach; mean waves 0.42 m, water 31.5 °C. Based on 2022–2026 weather the model rates about 0% of days in this month as high risk. Official DMCR jellyfish warnings in May: 0.
Where in Koh Chang is the jellyfish risk lowest in May?
Based on this month’s weather the risk is lowest at: Klong Kloi Beach, Long Beach (Hat Sai Yao, Koh Chang), Bailan Bay.
What to do if a jellyfish stings you 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.




