Jellyfish in Koh Samet in September

September in Koh Samet is a month of moderate risk. The prevailing south-west wind of about 3.7 m/s is blowing along the shore; mean waves 0.51 m, water 29.8 °C. Based on 2022–2026 weather the model rates about 13% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.

Typical risk this monthModerate
  • Low 0%
  • Moderate 87%
  • High 13%
  • Very high 0%

How the days of this month split by risk level (2022–2026 weather). A typical day is moderate; 13% of days are high or very high.

Risk in Koh Samet today →

Weather and sea in September

Wind3.7 m/s, south-west
Onshore wind-0.3 m/s
Waves0.51 m
Water29.8 °C
Rain359 mm · 27.5 days

Beaches this month

BeachesTypical riskOnshore windDMCR
Ao ChoModerate-1.50
Ao Hin KhokModerate0.30
Ao PhaiModerate-0.80
Ao Wong DuanModerate-10
Sai Kaew Beach (Koh Samet)Moderate0.40
Ao PraoModerate2.40
Ao Thian (Candlelight Beach)Moderate-1.80

Official cases in September

No official warnings nearby in this month.

Jellyfish found here

Koh Samet: jellyfish month by month

  1. January: Usually moderate risk. High risk on 0% of days. Onshore wind on 51% of days. Official warnings: 0. Eyewitness reports: 1.
  2. February: Usually moderate risk. High risk on 10% of days. Onshore wind on 66% of days. Official warnings: 0. Eyewitness reports: 2.
  3. March: Usually moderate risk. High risk on 12% of days. Onshore wind on 88% of days. Official warnings: 0. Eyewitness reports: 3.
  4. April: Usually low risk. High risk on 0% of days. Onshore wind on 94% of days. Official warnings: 0. Eyewitness reports: 1.
  5. May: Usually moderate risk. High risk on 0% of days. Onshore wind on 77% of days. Official warnings: 0.
  6. June: Usually moderate risk. High risk on 4% of days. Onshore wind on 51% of days. Official warnings: 0. Eyewitness reports: 5.
  7. July: Usually moderate risk. High risk on 30% of days. Onshore wind on 44% of days. Official warnings: 0.
  8. August: Usually moderate risk. High risk on 35% of days. Onshore wind on 50% of days. Official warnings: 0.
  9. September: Usually moderate risk. High risk on 13% of days. Onshore wind on 45% of days. Official warnings: 0. Eyewitness reports: 2.
  10. October: Usually moderate risk. High risk on 10% of days. Onshore wind on 43% of days. Official warnings: 0. Eyewitness reports: 1.
  11. November: Usually low risk. High risk on 0% of days. Onshore wind on 37% of days. Official warnings: 0. Eyewitness reports: 2.
  12. December: Usually low risk. High risk on 0% of days. Onshore wind on 28% of days. Official warnings: 0. Eyewitness reports: 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.

Questions and answers

Are there jellyfish in Koh Samet in September?

September in Koh Samet is a month of moderate risk. The prevailing south-west wind of about 3.7 m/s is blowing along the shore; mean waves 0.51 m, water 29.8 °C. Based on 2022–2026 weather the model rates about 13% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.

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

Based on this month’s weather the risk is lowest at: Ao Cho, Ao Hin Khok, Ao Phai.

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.