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

December at Long Beach (Coral Island / Koh Hey) Beach is a month of moderate risk. The prevailing north-east wind of about 5.2 m/s is blowing from the sea onto the beach; mean waves 0.45 m, water 29.1 °C. Based on 2022–2026 weather the model rates about 1% of days in this month as high risk. Official DMCR jellyfish warnings in December: 1.

Typical risk this monthModerate
  • Low 24%
  • Moderate 75%
  • High 1%
  • Very high 0%

How the days of this month split by risk level (2022–2026 weather). A typical day is moderate; 1% of days are high or very high.

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

Weather and sea in December

Wind5.2 m/s, north-east
Onshore wind2.6 m/s
Waves0.45 m
Water29.1 °C
Rain161 mm · 17.8 days

Official cases nearby in December

  1. DMCR
    Ao Yon Beach · อ่าวยน จ.ภูเก็ต
    box jellyfish

Nearby beaches this month

Jellyfish found here

This is the dry-season jellyfish period: large rhizostome jellyfish, lilac medusae and stinging plankton. Bluebottles are rare on the Andaman coast at this time.

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 December →

Questions and answers

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

December at Long Beach (Coral Island / Koh Hey) Beach is a month of moderate risk. The prevailing north-east wind of about 5.2 m/s is blowing from the sea onto the beach; mean waves 0.45 m, water 29.1 °C. Based on 2022–2026 weather the model rates about 1% of days in this month as high risk. Official DMCR jellyfish warnings in December: 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.