Beach
Ao Thong Nai Pan
Thailand · Gulf of Thailand
9.7797, 100.0560 · Ko Pha Ngan, 4 km
- 30°Sea · May
- 30°High · May
- 7.6 hSunshine · March
Your month at the beach
Ao Thong Nai Pan in January
- 27°CAir, daytime high27°C at night
- 28°CSea temperature
- 6.8 hSunshine a day
- 12 daysRainy days in the month116 mm in total
- 17 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in February
- 28°CAir, daytime high27°C at night
- 28°CSea temperature
- 7.5 hSunshine a day
- 7 daysRainy days in the month36 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in March
- 28°CAir, daytime high28°C at night
- 29°CSea temperature
- 7.6 hSunshine a day
- 12 daysRainy days in the month104 mm in total
- 13 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in April
- 30°CAir, daytime high29°C at night
- 30°CSea temperature
- 7.5 hSunshine a day
- 17 daysRainy days in the month106 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in May
- 30°CAir, daytime high29°C at night
- 30°CSea temperature
- 6.7 hSunshine a day
- 28 daysRainy days in the month220 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in June
- 29°CAir, daytime high28°C at night
- 30°CSea temperature
- 6.1 hSunshine a day
- 28 daysRainy days in the month227 mm in total
- 20 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in July
- 29°CAir, daytime high28°C at night
- 30°CSea temperature
- 5.8 hSunshine a day
- 30 daysRainy days in the month242 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in August
- 29°CAir, daytime high28°C at night
- 29°CSea temperature
- 6.0 hSunshine a day
- 29 daysRainy days in the month225 mm in total
- 22 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in September
- 28°CAir, daytime high28°C at night
- 29°CSea temperature
- 5.6 hSunshine a day
- 29 daysRainy days in the month250 mm in total
- 19 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in October
- 28°CAir, daytime high28°C at night
- 29°CSea temperature
- 5.0 hSunshine a day
- 29 daysRainy days in the month255 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in November
- 28°CAir, daytime high28°C at night
- 28°CSea temperature
- 5.7 hSunshine a day
- 24 daysRainy days in the month286 mm in total
- 18 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ao Thong Nai Pan in December
- 28°CAir, daytime high27°C at night
- 28°CSea temperature
- 6.3 hSunshine a day
- 19 daysRainy days in the month192 mm in total
- 20 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 48Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 26 kmAirport: Samui International Airport (USM)In a straight line; by road it is further
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
January from 2020 to 2025
In January 2025 the sea averaged 27.6 °C — about the same as the 1991–2020 average.
1991–2020 average: 27.8 °C
1991–2020 average: 27.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
February from 2020 to 2025
In February 2025 the sea averaged 28.5 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 28.1 °C
1991–2020 average: 27.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
March from 2020 to 2025
In March 2025 the sea averaged 28.9 °C — about the same as the 1991–2020 average.
1991–2020 average: 28.9 °C
1991–2020 average: 28.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
April from 2020 to 2025
In April 2025 the sea averaged 29.8 °C — about the same as the 1991–2020 average.
1991–2020 average: 29.9 °C
1991–2020 average: 29.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
May from 2020 to 2025
In May 2025 the sea averaged 30.3 °C — about the same as the 1991–2020 average.
1991–2020 average: 30.3 °C
1991–2020 average: 29.8 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
June from 2020 to 2025
In June 2025 the sea averaged 29.9 °C — about the same as the 1991–2020 average.
1991–2020 average: 29.9 °C
1991–2020 average: 29.3 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
July from 2020 to 2025
In July 2025 the sea averaged 29.8 °C — about the same as the 1991–2020 average.
1991–2020 average: 29.6 °C
1991–2020 average: 28.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
August from 2020 to 2025
In August 2025 the sea averaged 29.7 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 29.3 °C
1991–2020 average: 28.8 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
September from 2020 to 2025
In September 2025 the sea averaged 29.4 °C — 0.3 °C above the 1991–2020 average.
1991–2020 average: 29.1 °C
1991–2020 average: 28.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
October from 2020 to 2025
In October 2025 the sea averaged 29.1 °C — about the same as the 1991–2020 average.
1991–2020 average: 28.9 °C
1991–2020 average: 28.3 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
November from 2020 to 2025
In November 2025 the sea averaged 28.6 °C — about the same as the 1991–2020 average.
1991–2020 average: 28.5 °C
1991–2020 average: 28.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
December from 2020 to 2025
In December 2025 the sea averaged 27.7 °C — about the same as the 1991–2020 average.
1991–2020 average: 28.0 °C
1991–2020 average: 27.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
When to go
1991–2020 averagesThe year at a glance
- Jan28°7 h116 mm
- Feb28°8 h36 mm
- Mar29°8 h104 mm
- Apr30°8 h106 mm
- May30°7 h220 mm
- Jun30°6 h227 mm
- Jul30°6 h242 mm
- Aug29°6 h225 mm
- Sep29°6 h250 mm
- Oct29°5 h255 mm
- Nov28°6 h286 mm
- Dec28°6 h192 mm
Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.
Sea temperature
1991–2020 averagesClimate through the year
1991–2020 averagesRain
Sunshine
Sunshine hours are estimated from measured solar radiation, not observed directly.
Month by month
1991–2020 averagesEvery month at Ao Thong Nai Pan: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 27 | 27 | 28 | 116 | 12 | 6.8 | 17 |
| February | 28 | 27 | 28 | 36 | 7 | 7.5 | 15 |
| March | 28 | 28 | 29 | 104 | 12 | 7.6 | 13 |
| April | 30 | 29 | 30 | 106 | 17 | 7.5 | 12 |
| Maywarmest sea | 30 | 29 | 30 | 220 | 28 | 6.7 | 15 |
| June | 29 | 28 | 30 | 227 | 28 | 6.1 | 20 |
| July | 29 | 28 | 30 | 242 | 30 | 5.8 | 21 |
| August | 29 | 28 | 29 | 225 | 29 | 6.0 | 22 |
| September | 28 | 28 | 29 | 250 | 29 | 5.6 | 19 |
| October | 28 | 28 | 29 | 255 | 29 | 5.0 | 15 |
| November | 28 | 28 | 28 | 286 | 24 | 5.7 | 18 |
| December | 28 | 27 | 28 | 192 | 19 | 6.3 | 20 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
About these numbers
Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.
| What | Where it comes from | Nearest measurement |
|---|---|---|
| Air, rain and sunshine | NASA POWER | 25 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 13 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 25 km away |
| Lifeguards and places to stay | OpenStreetMap | within 1–5 km |
| Nearest airport | OurAirports | straight-line distance |
| Image at the top | Sentinel-2 cloudless (EOX) | at this spot |