Jellyfish in Koh Yao in September

September in Koh Yao is a month of moderate risk. The prevailing west wind of about 4.9 m/s is blowing offshore; mean waves 0.33 m, water 30 °C. Based on 2022–2026 weather the model rates about 9% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.

Typical risk this monthModerate
  • Low 28%
  • Moderate 64%
  • 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.

Risk in Koh Yao today →

Weather and sea in September

Wind4.9 m/s, west
Onshore wind-1 m/s
Waves0.33 m
Water30 °C
Rain263 mm · 24.2 days

Beaches this month

BeachesTypical riskOnshore windDMCR
Ao Klong Son (Koh Yao Yai)Moderate-0.10
Laem Had Beach (Koh Yao Yai)Moderate-4.30
Loh Ha Beach (Koh Yao Yai)Moderate-3.60
Loh Pared Beach (Koh Yao Yai)Moderate3.80

Official cases in September

No official warnings nearby in this month.

Jellyfish found here

Koh Yao: jellyfish month by month

  1. January: Usually moderate risk. High risk on 0% of days. Onshore wind on 43% of days. Official warnings: 0. Eyewitness reports: 2.
  2. February: Usually moderate risk. High risk on 0% of days. Onshore wind on 43% of days. Official warnings: 0.
  3. March: Usually moderate risk. High risk on 1% of days. Onshore wind on 44% of days. Official warnings: 0.
  4. April: Usually moderate risk. High risk on 12% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 3.
  5. May: Usually moderate risk. High risk on 10% of days. Onshore wind on 43% of days. Official warnings: 0.
  6. June: Usually moderate risk. High risk on 13% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 1.
  7. July: Usually moderate risk. High risk on 6% of days. Onshore wind on 43% of days. Official warnings: 0.
  8. August: Usually moderate risk. High risk on 6% of days. Onshore wind on 40% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 9% of days. Onshore wind on 37% of days. Official warnings: 0.
  10. October: Usually moderate risk. High risk on 0% of days. Onshore wind on 35% of days. Official warnings: 0.
  11. November: Usually low risk. High risk on 0% of days. Onshore wind on 40% of days. Official warnings: 0. Eyewitness reports: 1.
  12. December: Usually low risk. High risk on 0% of days. Onshore wind on 46% 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.

Questions and answers

Are there jellyfish in Koh Yao in September?

September in Koh Yao is a month of moderate risk. The prevailing west wind of about 4.9 m/s is blowing offshore; mean waves 0.33 m, water 30 °C. Based on 2022–2026 weather the model rates about 9% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.

Where in Koh Yao is the jellyfish risk lowest in September?

Based on this month’s weather the risk is lowest at: Ao Klong Son (Koh Yao Yai), Laem Had Beach (Koh Yao Yai), Loh Ha Beach (Koh Yao Yai).

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.