Jellyfish in the Gulf of Thailand in September
September in the Gulf of Thailand is a month of moderate risk. The prevailing wind of about 3.4 m/s is blowing along the shore; mean waves 0.39 m, water 30.1 °C. Based on 2022–2026 weather the model rates about 11% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.
| Wind | 3.4 m/s |
|---|---|
| Onshore wind | 0.08 m/s |
| Waves | 0.39 m |
| Water | 30.1 °C |
| Rain | 307.3 mm · 25.7 days |
Areas this month
- Koh KoodModerate41% days with high risk
- Koh MakModerate46% days with high risk
- Trat coastModerate32% days with high risk
- Bang SaenModerate12% days with high risk
- ChanthaburiModerate31% days with high risk
- Koh ChangModerate30% days with high risk
- Koh LarnModerate10% days with high risk
- Koh Si ChangModerate9% days with high risk
- Koh TaoModerate4% days with high risk
- Koh WaiModerate21% days with high risk
- Ang Thong Marine ParkModerate12% days with high risk
- Cha-amModerate8% days with high risk
- Hua Hin & PranburiModerate8% days with high risk
- Koh PhanganModerate6% days with high risk
- Koh SametModerate13% days with high risk
- PattayaModerate5% days with high risk
- Prachuap Khiri KhanModerate5% days with high risk
- RayongModerate9% days with high risk
- Surat Thani coastModerate3% days with high risk
- ChumphonModerate1% days with high risk
- Khanom & SichonModerate1% days with high risk
- Koh SamuiModerate4% days with high risk
- NarathiwatModerate5% days with high risk
- PattaniModerate4% days with high risk
- SongkhlaModerate2% days with high risk
Official cases in September
No official warnings nearby in this month.
Gulf of Thailand: jellyfish month by month
- January: Usually moderate risk. High risk on 0% of days. Onshore wind on 56% of days. Official warnings: 5. Eyewitness reports: 76.
- February: Usually moderate risk. High risk on 8% of days. Onshore wind on 60% of days. Official warnings: 3. Eyewitness reports: 217.
- March: Usually moderate risk. High risk on 13% of days. Onshore wind on 61% of days. Official warnings: 1. Eyewitness reports: 157.
- April: Usually moderate risk. High risk on 2% of days. Onshore wind on 59% of days. Official warnings: 1. Eyewitness reports: 79.
- May: Usually moderate risk. High risk on 0% of days. Onshore wind on 51% of days. Official warnings: 0. Eyewitness reports: 53.
- June: Usually moderate risk. High risk on 9% of days. Onshore wind on 50% of days. Official warnings: 0. Eyewitness reports: 171.
- July: Usually moderate risk. High risk on 25% of days. Onshore wind on 49% of days. Official warnings: 4. Eyewitness reports: 226.
- August: Usually moderate risk. High risk on 23% of days. Onshore wind on 49% of days. Official warnings: 1. Eyewitness reports: 317.
- September: Usually moderate risk. High risk on 11% of days. Onshore wind on 47% of days. Official warnings: 0. Eyewitness reports: 215.
- October: Usually moderate risk. High risk on 13% of days. Onshore wind on 41% of days. Official warnings: 0. Eyewitness reports: 273.
- November: Usually moderate risk. High risk on 2% of days. Onshore wind on 44% of days. Official warnings: 0. Eyewitness reports: 101.
- December: Usually low risk. High risk on 1% of days. Onshore wind on 49% of days. Official warnings: 0. Eyewitness reports: 66.
- 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 Gulf of Thailand in September?
Based on 2022–2026 weather, in September the risk in the Gulf of Thailand was high on 11% of days and the wind blew from the sea on 47% of days. Official DMCR warnings in this month over all years: 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 the Gulf of Thailand?
The risk is most often elevated in July, August, September.
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.