Is it worth the trip?
71Good out of 100 for your dates
Best on Sat 7: 11 kn gusting 15, side-onshore, Water: chop
Tue 3 · 66 out of 100
- Wind
- ESE 9 knF3
- Gusts
- 13kn
- Shore
- side-on
- Water
- flat
- Air
- 29°C
Wed 4 · 79 out of 100
- Wind
- ESE 9 knF3
- Gusts
- 14kn
- Shore
- side-on
- Water
- flat
- Air
- 28°C
Thu 5 · 32 out of 100
- Wind
- ESE 8 knF3
- Gusts
- 12kn
- Shore
- side-on
- Water
- flat
- Air
- 29°C
Fri 6 · 53 out of 100
- Wind
- ESE 8 knF3
- Gusts
- 13kn
- Shore
- side-on
- Water
- flat
- Air
- 28°C
Sat 7 · 100 out of 100
- Wind
- ESE 11 knF4
- Gusts
- 15kn
- Shore
- side-on
- Water
- chop
- Air
- 28°C
Sun 8 · 83 out of 100
- Wind
- E 12 knF4
- Gusts
- 20kn
- Shore
- side-on
- Water
- chop
- Air
- 28°C
Mon 9 · 0 out of 100
- Wind
- E 14 knF4
- Gusts
- 23kn
- Shore
- side-on
- Water
- 0.8 mwaves
- Air
- 27°C
Tap a day for wind, gusts, shore and air. Full forecast
Forecast: next 9 days
Full forecast- Mon 20, poor
- Tue 366, good
- Wed 479, good
- Thu 532, poor
- Fri 653, fair
- Sat 7100, good
- Sun 8100, good
- Mon 9100, good
- Tue 1028, poor
The spot in six facts
- Faces NEopen to the NE
- Best wind: SE or NWalong the shore
- Avoid: SWblows out to sea
- Open seato the swell
- Water 29 °Cno wetsuit
- Best Dec–Feb4 good days in 7
Full forecast
every day, every number
The score doesn't know gusts, offshore wind, tides or your skill.
| Day | Score | Wind | Gusts | Shore | Water | Air |
|---|---|---|---|---|---|---|
| Mon 2Nov | 0, poor | wind from the east, 3 knotsF1 | 13kn | side-on | flat | 28°C |
| Tue 3Nov | 66, good | wind from the east-south-east, 9 knotsF3 | 13kn | side-on | flat | 29°C |
| Wed 4Nov | 79, good | wind from the east-south-east, 9 knotsF3 | 14kn | side-on | flat | 28°C |
| Thu 5Nov | 32, poor | wind from the east-south-east, 8 knotsF3 | 12kn | side-on | flat | 29°C |
| Fri 6Nov | 53, fair | wind from the east-south-east, 8 knotsF3 | 13kn | side-on | flat | 28°C |
| Sat 7Nov | 100, good | wind from the east-south-east, 11 knotsF4 | 15kn | side-on | chop | 28°C |
| Sun 8Nov | 100, good | wind from the east, 12 knotsF4 | 20kn | side-on | chop | 28°C |
| Mon 9Nov | 100, good | wind from the east, 14 knotsF4 | 23kn | side-on | 0.8 mwaves | 27°C |
| Tue 10Nov | 28, poor | wind from the east, 8 knotsF3 | 13kn | side-on | chop | 28°C |
Wind is the day's best reading, mean and gusts, in knots; the arrow points where it blows to. Shore "off" blows out to sea. More
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Best time to go
best Dec–Feb
Good sailing days in a typical week, each month, from 2016 on (ERA5 history scored the same way).
- Jan4of 7: a trip from Sat 2 Jan
- Feb4of 7: a trip from Sat 6 Feb
- Mar3of 7: a trip from Sat 6 Mar
- Apr1of 7: a trip from Sat 3 Apr
- May1of 7: a trip from Sat 1 May
- Jun2of 7: a trip from Sat 5 Jun
- Jul3of 7: a trip from Sat 3 Jul
- Aug3of 7: a trip from Sat 7 Aug
- Sep2of 7: a trip from Sat 4 Sept
- Oct1of 7: a trip from Sat 2 Oct
- Nov3of 7: a trip from Tue 3 Nov
- Dec4of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast. Reanalysis wind misses some local thermal winds, so a spot known for an afternoon breeze may do better than this.
Map
the spot and its town
Thong Not Bay on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
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One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
About
the place in full, sources, credits
About Thong Not Bay
Known for sailing, by the OpenStreetMap map of the area. The shore faces NE, so wind from the SW blows out to sea (our estimate from the coastline).
Water about 29°C: no wetsuit. Typical sea temperature for the time of year, not a forecast.
A spot for sailing, as OpenStreetMap maps it, on a shore facing NE. Wind from the NE blows onshore, wind from the SW blows out to sea, and wind from the SE or NW runs along the shore. It is exposed to the open sea. The sea is about 28°C in January, its coldest month (no wetsuit), and 31°C in May, its warmest (no wetsuit). For sailing at intermediate level the best months are usually January, February and December, with about 4 good days in 7; in April, May and October, about 1. From the weather of past years. The town to stay in is Don Sak.
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$1,150–US$2,290 each
about US$1,150–US$2,290 each · 6 nights, 2 sharing: flights, hire car, stay, food.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to USM, estimated from distance and season, changing at HKG, full-service airlines, with a hold bag | about US$884–US$1,840 |
| Hire car | 6 days, shared | about US$47–US$80 |
| Stay | 6 nights, a mid-range double, shared | about US$100–US$161 |
| Food | 7 days eating out | about US$114–US$208 |
| Total | about US$1,150–US$2,290 |
Kit hire is not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.
Where to stay: Don Sak
about 30 min by car · 16 places to stay
about US$33/nightcountry average
About Don Sak its beds, food and every spot near it
About US$33 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
Getting there: about 27h 25m
About 27h 25m door to door from Chicago
Fly ORD → USM, changing at Hong Kong International Airport (HKG), then 1h by road
Flights ORD → USM on your dates · Skyscanner
An estimate, one way; the journey never changes the score.