Thong Nai Pan Noi Sea Temperature & Swim Forecast
Smaller twin bay with luxury resorts.
Very warm water with a light chop and a light breeze — great swimming conditions.
Location
Thong Nai Pan Noi on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
No wetsuit
At 28.7°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Recommendation tuned for Thong Nai Pan Noi's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Can I swim at Thong Nai Pan Noi today?
The sea is currently 28.7°C — excellent swimming conditions. Most swimmers will find it pleasant.
- • Located in Ko Pha-ngan, Thailand (Gulf of Thailand).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Thong Nai Pan Noi
The sea in Thong Nai Pan Noi peaks in April, when the water averages around 30°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically January at around 27°C, when cold-water swimmers dominate the coast.
Thong Nai Pan Noi sea temperature history
Long-term climatology for Thong Nai Pan Noi shows an annual mean sea temperature of 29°C, ranging from 27°C in winter to 30°C at the summer peak.
The seasonal swing is roughly 3°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Thong Nai Pan Noi, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Thong Nai Pan Noi sea temperature: frequently asked questions
What is the warmest month to swim in Thong Nai Pan Noi?
April is the warmest month in Thong Nai Pan Noi, when the sea averages about 30°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Thong Nai Pan Noi?
The coldest month in Thong Nai Pan Noi is typically January, when the water averages around 27°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Thong Nai Pan Noi without a wetsuit?
The main swimming season in Thong Nai Pan Noi runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Thong Nai Pan Noi?
Thong Nai Pan Noi stays warm year-round, so most swimmers never need a wetsuit — a rash guard is usually enough for sun and wildlife protection.
What is the average sea temperature in Thong Nai Pan Noi?
The long-term annual mean sea temperature in Thong Nai Pan Noi is about 29°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Thong Nai Pan Noi?
The live reading at the top of this page shows the current sea temperature in Thong Nai Pan Noi, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: Jan – Feb – Mar – Apr – May – Jun – Jul – Aug – Sep – Oct – Nov – Dec
| Month | Sea | Comfort |
|---|---|---|
| Jan | 27°C | Hot |
| Feb | 28°C | Hot |
| Mar | 29°C | Hot |
| Apr ⭐ | 30°C | Hot |
| May | 30°C | Hot |
| Jun | 29°C | Hot |
| Jul | 29°C | Hot |
| Aug | 29°C | Hot |
| Sep | 29°C | Hot |
| Oct | 29°C | Hot |
| Nov | 28°C | Hot |
| Dec | 27°C | Hot |
Nearby beaches
The closest coastline, with live water temperatures.