Jellyfish in the Andaman Sea in May
May in the Andaman Sea is a month of moderate risk. The prevailing wind of about 3.2 m/s is blowing from the sea onto the beach; mean waves 0.59 m, water 31.3 °C. Based on 2022–2026 weather the model rates about 26% of days in this month as high risk. Official DMCR jellyfish warnings in May: 4.
| Wind | 3.2 m/s |
|---|---|
| Onshore wind | 0.73 m/s |
| Waves | 0.59 m |
| Water | 31.3 °C |
| Rain | 297 mm · 26.2 days |
Areas this month
- Khao LakHigh54% days with high risk
- PhuketModerate34% days with high risk
- Koh Chang (Ranong)Moderate33% days with high risk
- Koh LantaModerate24% days with high risk
- Koh PhayamModerate33% days with high risk
- Similan IslandsModerate37% days with high risk
- Satun (Tarutao, Pak Bara)Moderate23% days with high risk
- TrangModerate18% days with high risk
- Koh LipeModerate16% days with high risk
- Koh Phi PhiModerate16% days with high risk
- Surin IslandsModerate20% days with high risk
- Koh RokModerate8% days with high risk
- Koh YaoModerate10% days with high risk
- Krabi (Ao Nang)Moderate0% days with high risk
Official cases in May
- DMCRSai Kaew Beach · หาดไม้ขาว อ.ถลาง จ.ภูเก็ต
- DMCRKaron Beach · หาดกะรน อ.เมือง จ.ภูเก็ต
- DMCRPatok Bay (Koh Racha Yai) · อ่าวปะตก เกาะราชาใหญ่ จ.ภูเก็ต
- DMCRKaron Beach · หาดกะรน อ.เมือง จ.ภูเก็ต
Andaman Sea: jellyfish month by month
- January: Usually moderate risk. High risk on 3% of days. Onshore wind on 25% of days. Official warnings: 0. Eyewitness reports: 461.
- February: Usually moderate risk. High risk on 5% of days. Onshore wind on 29% of days. Official warnings: 4. Eyewitness reports: 360.
- March: Usually moderate risk. High risk on 3% of days. Onshore wind on 35% of days. Official warnings: 4. Eyewitness reports: 485.
- April: Usually moderate risk. High risk on 21% of days. Onshore wind on 55% of days. Official warnings: 1. Eyewitness reports: 361.
- May: Usually moderate risk. High risk on 26% of days. Onshore wind on 62% of days. Official warnings: 4. Eyewitness reports: 136.
- June: Usually moderate risk. High risk on 14% of days. Onshore wind on 75% of days. Official warnings: 7. Eyewitness reports: 263.
- July: Usually moderate risk. High risk on 6% of days. Onshore wind on 76% of days. Official warnings: 2. Eyewitness reports: 111.
- August: Usually moderate risk. High risk on 9% of days. Onshore wind on 77% of days. Official warnings: 1. Eyewitness reports: 77.
- September: Usually moderate risk. High risk on 6% of days. Onshore wind on 76% of days. Official warnings: 3. Eyewitness reports: 189.
- October: Usually moderate risk. High risk on 2% of days. Onshore wind on 57% of days. Official warnings: 0. Eyewitness reports: 121.
- November: Usually moderate risk. High risk on 0% of days. Onshore wind on 36% of days. Official warnings: 0. Eyewitness reports: 84.
- December: Usually low risk. High risk on 1% of days. Onshore wind on 25% of days. Official warnings: 1. Eyewitness reports: 175.
- 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 the Andaman Sea in May?
Based on 2022–2026 weather, in May the risk in the Andaman Sea was high on 26% of days and the wind blew from the sea on 62% of days. Official DMCR warnings in this month over all years: 4. 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 the Andaman Sea?
The risk is most often elevated in March, April, May.
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.