Jellyfish in Koh Samui in December

December in Koh Samui is usually a calm month. The prevailing north-east wind of about 3.2 m/s is blowing from the sea onto the beach; mean waves 0.55 m, water 28.5 °C. Based on 2022–2026 weather the model rates about 0% of days in this month as high risk. Official DMCR jellyfish warnings in December: 0.

Typical risk this monthLow
  • Low 57%
  • Moderate 43%
  • High 0%
  • Very high 0%

How the days of this month split by risk level (2022–2026 weather). A typical day is low; 0% of days are high or very high.

Risk in Koh Samui today →

Weather and sea in December

Wind3.2 m/s, north-east
Onshore wind1.1 m/s
Waves0.55 m
Water28.5 °C
Rain196 mm · 18.4 days

Beaches this month

BeachesTypical riskOnshore windDMCR
Choeng Mon BeachLow2.10
Lipa Noi BeachModerate-0.50
Bang Po BeachLow1.10
Bophut BeachLow2.20
Chaweng BeachLow1.50
Chaweng Noi BeachLow2.40
Lamai BeachLow0.50
Maenam BeachLow2.20
Silver Beach (Thong Takian)Low2.60
Taling Ngam BeachModerate-2.70

Official cases in December

No official warnings nearby in this month.

Jellyfish found here

Koh Samui: jellyfish month by month

  1. January: Usually low risk. High risk on 0% of days. Onshore wind on 67% of days. Official warnings: 0. Eyewitness reports: 20.
  2. February: Usually moderate risk. High risk on 15% of days. Onshore wind on 50% of days. Official warnings: 0. Eyewitness reports: 29.
  3. March: Usually moderate risk. High risk on 32% of days. Onshore wind on 45% of days. Official warnings: 1. Eyewitness reports: 47.
  4. April: Usually moderate risk. High risk on 20% of days. Onshore wind on 44% of days. Official warnings: 0. Eyewitness reports: 27.
  5. May: Usually moderate risk. High risk on 2% of days. Onshore wind on 34% of days. Official warnings: 0. Eyewitness reports: 25.
  6. June: Usually low risk. High risk on 0% of days. Onshore wind on 23% of days. Official warnings: 0. Eyewitness reports: 25.
  7. July: Usually moderate risk. High risk on 1% of days. Onshore wind on 23% of days. Official warnings: 2. Eyewitness reports: 84.
  8. August: Usually moderate risk. High risk on 35% of days. Onshore wind on 23% of days. Official warnings: 0. Eyewitness reports: 111.
  9. September: Usually moderate risk. High risk on 4% of days. Onshore wind on 26% of days. Official warnings: 0. Eyewitness reports: 77.
  10. October: Usually moderate risk. High risk on 1% of days. Onshore wind on 53% of days. Official warnings: 0. Eyewitness reports: 73.
  11. November: Usually moderate risk. High risk on 2% of days. Onshore wind on 68% of days. Official warnings: 0. Eyewitness reports: 18.
  12. December: Usually low risk. High risk on 0% of days. Onshore wind on 76% of days. Official warnings: 0. Eyewitness reports: 18.
  • 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 Samui in December?

December in Koh Samui is usually a calm month. The prevailing north-east wind of about 3.2 m/s is blowing from the sea onto the beach; mean waves 0.55 m, water 28.5 °C. Based on 2022–2026 weather the model rates about 0% of days in this month as high risk. Official DMCR jellyfish warnings in December: 0.

Where in Koh Samui is the jellyfish risk lowest in December?

Based on this month’s weather the risk is lowest at: Choeng Mon Beach, Lipa Noi Beach, Bang Po Beach.

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.