Jellyfish at Hat San Beach in September
September at Hat San Beach is a month of moderate risk. The prevailing west wind of about 3.2 m/s is blowing from the sea onto the beach; mean waves 0.58 m, water 30.1 °C. Based on 2022–2026 weather the model rates about 3% of days in this month as high risk. Official DMCR jellyfish warnings in September: 0.
5-day outlook at Hat San Beach →
Weather and sea in September
| Wind | 3.2 m/s, west |
|---|---|
| Onshore wind | 1.4 m/s |
| Waves | 0.58 m |
| Water | 30.1 °C |
| Rain | 332 mm · 24.8 days |
Official cases nearby in September
No official warnings nearby in this month.
Nearby beaches this month
- Koh KradanModerate
- Ao Na Ko (Koh Ngai)Moderate
- Chang Lang BeachModerate
- Hat Chao MaiModerate
- Hat Yao (Trang)Moderate
- Koh Lao LiangModerate
Jellyfish found here
Hat San: jellyfish month by month
- January: Usually moderate risk. High risk on 0% of days. Onshore wind on 0% of days. Official warnings: 0.
- February: Usually moderate risk. High risk on 0% of days. Onshore wind on 8% of days. Official warnings: 3.
- March: Usually moderate risk. High risk on 3% of days. Onshore wind on 21% of days. Official warnings: 0.
- April: Usually moderate risk. High risk on 19% of days. Onshore wind on 58% of days. Official warnings: 0.
- May: Usually moderate risk. High risk on 8% of days. Onshore wind on 72% of days. Official warnings: 0.
- June: Usually moderate risk. High risk on 5% of days. Onshore wind on 91% of days. Official warnings: 0.
- July: Usually moderate risk. High risk on 0% of days. Onshore wind on 93% of days. Official warnings: 0.
- August: Usually moderate risk. High risk on 0% of days. Onshore wind on 95% of days. Official warnings: 0.
- September: Usually moderate risk. High risk on 3% of days. Onshore wind on 93% of days. Official warnings: 0.
- October: Usually low risk. High risk on 0% of days. Onshore wind on 42% of days. Official warnings: 0.
- November: Usually moderate 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 0% 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 Hat San Beach in September?
September at Hat San Beach is a month of moderate risk. The prevailing west wind of about 3.2 m/s is blowing from the sea onto the beach; mean waves 0.58 m, water 30.1 °C. Based on 2022–2026 weather the model rates about 3% of days in this month as high risk. Official DMCR jellyfish warnings in September: 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.




