Jellyfish in Similan Islands in December
December in Similan Islands is usually a calm month. The prevailing north-east wind of about 4.5 m/s is blowing offshore; mean waves 0.66 m, water 28.9 °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.
Risk in Similan Islands today →
Weather and sea in December
| Wind | 4.5 m/s, north-east |
|---|---|
| Onshore wind | -1.3 m/s |
| Waves | 0.66 m |
| Water | 28.9 °C |
| Rain | 93 mm · 15 days |
Beaches this month
| Beaches | Typical risk | Onshore wind | DMCR |
|---|---|---|---|
| Donald Duck Bay (Ao Kuerk, Koh 8) | Low | -1.3 | 0 |
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.
Similan Islands: jellyfish month by month
- 0%JanJanuary: Usually moderate risk. High risk on 0% of days. Onshore wind on 23% of days. Official warnings: 0.
- 0%FebFebruary: Usually moderate risk. High risk on 0% of days. Onshore wind on 35% of days. Official warnings: 0.
- 7%MarMarch: Usually moderate risk. High risk on 7% of days. Onshore wind on 47% of days. Official warnings: 0.
- 31%AprApril: Usually moderate risk. High risk on 31% of days. Onshore wind on 71% of days. Official warnings: 0.
- 37%MayMay: Usually moderate risk. High risk on 37% of days. Onshore wind on 68% of days. Official warnings: 0.
- 0%JunJune: Usually moderate risk. High risk on 0% of days. Onshore wind on 93% of days. Official warnings: 0.
- 1%JulJuly: Usually moderate risk. High risk on 1% of days. Onshore wind on 94% of days. Official warnings: 0.
- 1%AugAugust: Usually moderate risk. High risk on 1% of days. Onshore wind on 94% of days. Official warnings: 0.
- 6%SepSeptember: Usually moderate risk. High risk on 6% of days. Onshore wind on 96% of days. Official warnings: 0.
- 3%OctOctober: Usually moderate risk. High risk on 3% of days. Onshore wind on 77% of days. Official warnings: 0.
- 1%NovNovember: Usually moderate risk. High risk on 1% of days. Onshore wind on 39% of days. Official warnings: 0.
- 0%DecDecember: Usually low risk. High risk on 0% of days. Onshore wind on 16% of days. Official warnings: 0.
- typical level that month
- bar and % — share of high-risk days
- nofficial warnings, all years
Questions and answers
Are there jellyfish in Similan Islands in December?
December in Similan Islands is usually a calm month. The prevailing north-east wind of about 4.5 m/s is blowing offshore; mean waves 0.66 m, water 28.9 °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 Similan Islands is the jellyfish risk lowest in December?
Based on this month’s weather the risk is lowest at: Donald Duck Bay (Ao Kuerk, Koh 8).
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.