Jellyfish at Patok Bay (Koh Racha Yai) Beach in April

April at Patok Bay (Koh Racha Yai) Beach is a month of moderate risk. The prevailing north-west wind of about 3.7 m/s is blowing from the sea onto the beach; mean waves 0.38 m, water 30.7 °C. Based on 2022–2026 weather the model rates about 9% of days in this month as high risk. Official DMCR jellyfish warnings in April: 0.

Typical risk this monthModerate
  • Low 5%
  • Moderate 87%
  • High 9%
  • Very high 0%

How the days of this month split by risk level (2022–2026 weather). A typical day is moderate; 9% of days are high or very high.

5-day outlook at Patok Bay (Koh Racha Yai) Beach →

Weather and sea in April

Wind3.7 m/s, north-west
Onshore wind1.1 m/s
Waves0.38 m
Water30.7 °C
Rain136 mm · 17.8 days

Official cases nearby in April

No official warnings nearby in this month.

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.

Patok Bay (Koh Racha Yai): jellyfish month by month

  1. January: Usually moderate risk. High risk on 16% of days. Onshore wind on 7% of days. Official warnings: 0. Eyewitness reports: 1.
  2. February: Usually moderate risk. High risk on 31% of days. Onshore wind on 14% of days. Official warnings: 0.
  3. March: Usually moderate risk. High risk on 4% of days. Onshore wind on 21% of days. Official warnings: 1. Eyewitness reports: 1.
  4. April: Usually moderate risk. High risk on 9% of days. Onshore wind on 65% of days. Official warnings: 0. Eyewitness reports: 1.
  5. May: Usually moderate risk. High risk on 41% of days. Onshore wind on 72% of days. Official warnings: 1.
  6. June: Usually moderate risk. High risk on 33% of days. Onshore wind on 93% of days. Official warnings: 1. Eyewitness reports: 1.
  7. July: Usually moderate risk. High risk on 23% of days. Onshore wind on 94% of days. Official warnings: 0. Eyewitness reports: 1.
  8. August: Usually moderate risk. High risk on 29% of days. Onshore wind on 95% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 8% of days. Onshore wind on 95% of days. Official warnings: 1. Eyewitness reports: 4.
  10. October: Usually moderate risk. High risk on 5% of days. Onshore wind on 80% of days. Official warnings: 0.
  11. November: Usually moderate risk. High risk on 1% of days. Onshore wind on 32% of days. Official warnings: 0.
  12. December: Usually moderate risk. High risk on 10% of days. Onshore wind on 9% of days. Official warnings: 0.
  • 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 April →

Questions and answers

Are there jellyfish at Patok Bay (Koh Racha Yai) Beach in April?

April at Patok Bay (Koh Racha Yai) Beach is a month of moderate risk. The prevailing north-west wind of about 3.7 m/s is blowing from the sea onto the beach; mean waves 0.38 m, water 30.7 °C. Based on 2022–2026 weather the model rates about 9% of days in this month as high risk. Official DMCR jellyfish warnings in April: 0.

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.