Jellyfish at Tonsai Beach
หาดต้นไทร · Krabi (Ao Nang) · Andaman Sea
Main factor: Calm water and rain
No jellyfish reports; conditions are typical for the season.
Today the jellyfish risk at Tonsai Beach is low. Main factor: calm water and rain. In October it is usually low here. It is an estimate, not a guarantee: follow beach flags and lifeguards.
What to expect today
- Box jellyfishLow
5-day outlook
- TodayLow3 m/s NW — Wind: up to 3 m/s, blowing from NW. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.33 mm — Rain: 33 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
- TomorrowLow3 m/s E — Wind: up to 3 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.3 m — Waves: up to 0.3 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.25 mm — Rain: 25 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
- Tue 27Low3 m/s E — Wind: up to 3 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.3 m — Waves: up to 0.3 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.13 mm — Rain: 13 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
- Wed 28Low4 m/s SE — Wind: up to 4 m/s, blowing from SE. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.1 m — Waves: up to 0.1 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.25 mm — Rain: 25 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
- Thu 29Low3 m/s E — Wind: up to 3 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.1 m — Waves: up to 0.1 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.14 mm — Rain: 14 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
- Fri 30Low4 m/s E — Wind: up to 4 m/s, blowing from E. The arrow shows where it blows to. Onshore wind pushes jellyfish to the beach.0.2 m — Waves: up to 0.2 m during the day. Strong onshore waves wash jellyfish ashore; box jellyfish prefer calm water.14 mm — Rain: 14 mm in the day. Box jellyfish are more common near river mouths after heavy rain.
Why this level
Total: Low Box jellyfish
- Box jellyfish Lowusual backgroundcalm water and rain, usual for the season
- Other jellyfish and stinging plankton Lowusual backgroundjellyfish season in this area, usual for the season
- Bluebottles (Portuguese man o’ war) Lowlowers riskbelow usual for the season
It is not jellyfish season in Krabi (Ao Nang), the wind is light or along the shore, the sea is calm (waves ~0.2 m), so the risk level is low. There are no recent jellyfish reports.
Recent reports
No recent reports.
Report jellyfish
At this beach now? Your report helps others. "No jellyfish today" is useful too.
Seasonality
Tonsai: 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.
Coordinates: 8.0167, 98.8330
Questions and answers
Can I swim at Tonsai Beach today?
Today's estimated risk is low; main factor: calm water and rain. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.
Have jellyfish been seen at Tonsai Beach recently?
No reports in the last 14 days. It is an estimate, not a guarantee: "no reports" does not mean there are no jellyfish. Check beach flags and follow lifeguards.
In which months are jellyfish more likely at Tonsai Beach?
Based on 2022–2026 weather, the risk is most often elevated in March, April, May. Official warnings nearby: 0.
Who do I call after a jellyfish sting?
Emergency medical services in Thailand: 1669 (free). Alert the beach lifeguard; if a box jellyfish is possible, pour vinegar over the sting for at least 30 seconds.