Jellyfish at Long Beach (Coral Island / Koh Hey) Beach in September

September at Long Beach (Coral Island / Koh Hey) Beach is a month of moderate risk. The prevailing west wind of about 5.7 m/s is blowing along the shore; mean waves 1 m, water 29.5 °C. Based on 2022–2026 weather the model rates about 12% of days in this month as high risk. Official DMCR jellyfish warnings in September: 1.

Typical risk this monthModerate
  • Low 0%
  • Moderate 89%
  • High 11%
  • Very high 1%

How the days of this month split by risk level (2022–2026 weather). A typical day is moderate; 12% of days are high or very high.

5-day outlook at Long Beach (Coral Island / Koh Hey) Beach →

Weather and sea in September

Wind5.7 m/s, west
Onshore wind-0.2 m/s
Waves1 m
Water29.5 °C
Rain247 mm · 22.4 days

Official cases nearby in September

  1. DMCR
    Karon Beach · หาดกะตะ อ.เมือง จ.ภูเก็ต
    bluebottle (Portuguese man o’ war)

Nearby beaches this month

Jellyfish found here

Long Beach (Coral Island / Koh Hey): jellyfish month by month

  1. January: Usually moderate risk. High risk on 1% of days. Onshore wind on 99% of days. Official warnings: 0. Eyewitness reports: 14.
  2. February: Usually moderate risk. High risk on 8% of days. Onshore wind on 97% of days. Official warnings: 0. Eyewitness reports: 5.
  3. March: Usually moderate risk. High risk on 1% of days. Onshore wind on 91% of days. Official warnings: 3. Eyewitness reports: 8.
  4. April: Usually moderate risk. High risk on 3% of days. Onshore wind on 77% of days. Official warnings: 0. Eyewitness reports: 4.
  5. May: Usually moderate risk. High risk on 16% of days. Onshore wind on 57% of days. Official warnings: 2.
  6. June: Usually moderate risk. High risk on 28% of days. Onshore wind on 38% of days. Official warnings: 2.
  7. July: Usually moderate risk. High risk on 21% of days. Onshore wind on 26% of days. Official warnings: 1.
  8. August: Usually moderate risk. High risk on 30% of days. Onshore wind on 37% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 12% of days. Onshore wind on 45% of days. Official warnings: 1.
  10. October: Usually moderate risk. High risk on 3% of days. Onshore wind on 79% of days. Official warnings: 0.
  11. November: Usually moderate risk. High risk on 1% of days. Onshore wind on 96% of days. Official warnings: 0.
  12. December: Usually moderate risk. High risk on 1% of days. Onshore wind on 99% of days. Official warnings: 1.
  • 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 in Phuket in September →

Questions and answers

Are there jellyfish at Long Beach (Coral Island / Koh Hey) Beach in September?

September at Long Beach (Coral Island / Koh Hey) Beach is a month of moderate risk. The prevailing west wind of about 5.7 m/s is blowing along the shore; mean waves 1 m, water 29.5 °C. Based on 2022–2026 weather the model rates about 12% of days in this month as high risk. Official DMCR jellyfish warnings in September: 1.

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.