Jellyfish in Koh Lanta in December

December in Koh Lanta is usually a calm month. The prevailing north-east wind of about 4.9 m/s is blowing offshore; mean waves 0.36 m, water 29 °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: 0.

Typical risk this monthLow
  • Low 54%
  • Moderate 45%
  • High 1%
  • Very high 0%

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

Risk in Koh Lanta today →

Weather and sea in December

Wind4.9 m/s, north-east
Onshore wind-4.4 m/s
Waves0.36 m
Water29 °C
Rain104 mm · 11.9 days

Beaches this month

BeachesTypical riskOnshore windDMCR
Bamboo BayModerate-50
Kantiang BayLow-5.10
Klong Dao BeachLow-3.40
Klong Jaak BeachLow-4.90
Klong Khong BeachLow-3.40
Klong Nin BeachLow-4.90
Long Beach (Phra Ae)Low-3.30
Nui Beach (Koh Lanta)Low-50

Official cases in December

No official warnings nearby in 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.

Koh Lanta: jellyfish month by month

  1. 2%Jan6January: Usually moderate risk. High risk on 2% of days. Onshore wind on 1% of days. Official warnings: 0. Eyewitness reports: 6.
  2. 1%Feb12February: Usually moderate risk. High risk on 1% of days. Onshore wind on 5% of days. Official warnings: 0. Eyewitness reports: 12.
  3. 1%Mar8March: Usually moderate risk. High risk on 1% of days. Onshore wind on 17% of days. Official warnings: 0. Eyewitness reports: 8.
  4. 18%Apr111April: Usually moderate risk. High risk on 18% of days. Onshore wind on 58% of days. Official warnings: 1. Eyewitness reports: 11.
  5. 24%May4May: Usually moderate risk. High risk on 24% of days. Onshore wind on 71% of days. Official warnings: 0. Eyewitness reports: 4.
  6. 1%Jun19June: Usually moderate risk. High risk on 1% of days. Onshore wind on 95% of days. Official warnings: 0. Eyewitness reports: 19.
  7. 0%Jul6July: Usually moderate risk. High risk on 0% of days. Onshore wind on 98% of days. Official warnings: 0. Eyewitness reports: 6.
  8. 0%Aug3August: Usually moderate risk. High risk on 0% of days. Onshore wind on 99% of days. Official warnings: 0. Eyewitness reports: 3.
  9. 2%Sep2September: Usually moderate risk. High risk on 2% of days. Onshore wind on 96% of days. Official warnings: 0. Eyewitness reports: 2.
  10. 0%OctOctober: Usually moderate risk. High risk on 0% of days. Onshore wind on 63% of days. Official warnings: 0.
  11. 2%Nov5November: Usually moderate risk. High risk on 2% of days. Onshore wind on 22% of days. Official warnings: 0. Eyewitness reports: 5.
  12. 1%Dec12December: Usually low risk. High risk on 1% of days. Onshore wind on 1% of days. Official warnings: 0. Eyewitness reports: 12.
  • typical level that month
  • bar and % — share of high-risk days
  • nofficial warnings, all years
  • neyewitness reports, all years

Questions and answers

Are there jellyfish in Koh Lanta in December?

December in Koh Lanta is usually a calm month. The prevailing north-east wind of about 4.9 m/s is blowing offshore; mean waves 0.36 m, water 29 °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: 0.

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

Based on this month’s weather the risk is lowest at: Bamboo Bay, Kantiang Bay, Klong Dao 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.