Jellyfish at Tonsai Beach in April
April at Tonsai Beach is a month of moderate risk. The prevailing west wind of about 2.2 m/s is blowing along the shore; mean waves 0.13 m, water 31.4 °C. Based on 2022–2026 weather the model rates about 45% of days in this month as high risk. Official DMCR jellyfish warnings in April: 0.
5-day outlook at Tonsai Beach →
Weather and sea in April
| Wind | 2.2 m/s, west |
|---|---|
| Onshore wind | 0 m/s |
| Waves | 0.13 m |
| Water | 31.4 °C |
| Rain | 152 mm · 21 days |
Official cases nearby in April
No official warnings nearby in this month.
Nearby beaches this month
- Ao Nang BeachModerate
- Klong Muang BeachModerate
- Koh Hong (Krabi)Moderate
- Noppharat Thara BeachModerate
- Phra Nang Cave BeachModerate
- Railay West BeachModerate
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.
Tonsai Beach: jellyfish month by month
- January: Usually low risk. High risk on 0% of days. Onshore wind on 0% of days. Official warnings: 0. Eyewitness reports: 1.
- February: Usually low risk. High risk on 0% of days. Onshore wind on 11% of days. Official warnings: 0.
- March: Usually moderate risk. High risk on 1% of days. Onshore wind on 26% of days. Official warnings: 0.
- April: Usually moderate risk. High risk on 45% of days. Onshore wind on 61% of days. Official warnings: 0. Eyewitness reports: 2.
- May: Usually moderate risk. High risk on 0% of days. Onshore wind on 70% of days. Official warnings: 0.
- June: Usually low risk. High risk on 0% of days. Onshore wind on 91% of days. Official warnings: 0.
- July: Usually low risk. High risk on 0% of days. Onshore wind on 98% of days. Official warnings: 0.
- August: Usually low risk. High risk on 0% of days. Onshore wind on 97% of days. Official warnings: 0.
- September: Usually low risk. High risk on 0% of days. Onshore wind on 92% of days. Official warnings: 0.
- October: Usually low risk. High risk on 0% of days. Onshore wind on 33% of days. Official warnings: 0.
- November: Usually low risk. High risk on 0% of days. Onshore wind on 15% of days. Official warnings: 0.
- December: Usually low risk. High risk on 0% of days. Onshore wind on 2% 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 at Tonsai Beach in April?
April at Tonsai Beach is a month of moderate risk. The prevailing west wind of about 2.2 m/s is blowing along the shore; mean waves 0.13 m, water 31.4 °C. Based on 2022–2026 weather the model rates about 45% of days in this month as high risk. Official DMCR jellyfish warnings in April: 0.
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.




