Jellyfish on the western Gulf coast
Today no beach on the western Gulf coast has a high jellyfish risk: the highest level is moderate (20 of 20). It is an estimate, not a guarantee: follow beach flags and lifeguards.
Jellyfish on the western Gulf coast today and for 5 days: risk on 20 beaches in 4 areas, where it is higher now, when the season is and which species occur.

Areas by risk today
Western Gulf coast: jellyfish month by month
- January: Usually moderate risk. High risk on 0% of days. Onshore wind on 73% of days. Official warnings: 0. Eyewitness reports: 14.
- February: Usually moderate risk. High risk on 8% of days. Onshore wind on 76% of days. Official warnings: 0. Eyewitness reports: 60.
- March: Usually moderate risk. High risk on 12% of days. Onshore wind on 72% of days. Official warnings: 0. Eyewitness reports: 47.
- April: Usually low risk. High risk on 0% of days. Onshore wind on 65% of days. Official warnings: 0. Eyewitness reports: 19.
- May: Usually low risk. High risk on 0% of days. Onshore wind on 37% of days. Official warnings: 0. Eyewitness reports: 13.
- June: Usually moderate risk. High risk on 0% of days. Onshore wind on 9% of days. Official warnings: 0. Eyewitness reports: 14.
- July: Usually moderate risk. High risk on 20% of days. Onshore wind on 10% of days. Official warnings: 0. Eyewitness reports: 14.
- August: Usually moderate risk. High risk on 16% of days. Onshore wind on 9% of days. Official warnings: 0. Eyewitness reports: 44.
- September: Usually moderate risk. High risk on 6% of days. Onshore wind on 9% of days. Official warnings: 0. Eyewitness reports: 30.
- October: Usually moderate risk. High risk on 12% of days. Onshore wind on 39% of days. Official warnings: 0. Eyewitness reports: 99.
- November: Usually moderate risk. High risk on 0% of days. Onshore wind on 55% of days. Official warnings: 0. Eyewitness reports: 32.
- December: Usually low risk. High risk on 0% of days. Onshore wind on 66% of days. Official warnings: 0. Eyewitness reports: 31.
- 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.
Jellyfish found here
Questions and answers
Are there jellyfish on the western Gulf coast right now?
Today across 20 beaches: moderate — 20. The highest estimate is in Prachuap Khiri Khan. 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 on the western Gulf coast?
Based on 2022–2026 weather, the risk on the western Gulf coast is most often elevated in July, August, September. Official DMCR warnings on these beaches: 0.
Which dangerous jellyfish occur on the western Gulf coast?
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.