เกาะบิดะนอก
Dive site · Thailand
Is it worth the trip?
81Good out of 100 for your dates
2 days tie for best
Tue 3 · 81 out of 100
- Sea
- 0.1 mflat
- Wind
- 5 kn
- Gusts
- 10kn
- Air
- 28°C
Wed 4 · 82 out of 100
- Sea
- 0.1 mflat
- Wind
- 1 kn
- Gusts
- 6kn
- Air
- 28°C
Thu 5 · 82 out of 100
- Sea
- 0.1 mflat
- Wind
- 1 kn
- Gusts
- 4kn
- Air
- 28°C
Fri 6 · 81 out of 100
- Sea
- 0.1 mflat
- Wind
- 6 kn
- Gusts
- 12kn
- Air
- 28°C
Sat 7 · 81 out of 100
- Sea
- 0.1 mflat
- Wind
- 5 kn
- Gusts
- 11kn
- Air
- 28°C
Sun 8 · 81 out of 100
- Sea
- 0.1 mflat
- Wind
- 5 kn
- Gusts
- 17kn
- Air
- 28°C
Mon 9 · 77 out of 100
- Sea
- 0.1 mflat
- Wind
- 11 kn
- Gusts
- 19kn
- Air
- 28°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 9 days
Full forecast- Mon 281, good
- Tue 381, good
- Wed 482, good
- Thu 582, good
- Fri 681, good
- Sat 781, good
- Sun 881, good
- Mon 977, good
- Tue 1070, good
The site in four facts
- From a boathow you get in
- Open Waterand up
- Water 29 °Crash vest or 1 to 2 mm
- Faces Sswell from there reaches it
Full forecast
every day, every number
The score doesn't know currents, the visibility on the day or your certification.
Suits Open Water divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Mon 2Nov | 81, good | 0.1 mflat | 3 kn | 9kn | 28°C |
| Tue 3Nov | 81, good | 0.1 mflat | 5 kn | 10kn | 28°C |
| Wed 4Nov | 82, good | 0.1 mflat | 1 kn | 6kn | 28°C |
| Thu 5Nov | 82, good | 0.1 mflat | 1 kn | 4kn | 28°C |
| Fri 6Nov | 81, good | 0.1 mflat | 6 kn | 12kn | 28°C |
| Sat 7Nov | 81, good | 0.1 mflat | 5 kn | 11kn | 28°C |
| Sun 8Nov | 81, good | 0.1 mflat | 5 kn | 17kn | 28°C |
| Mon 9Nov | 77, good | 0.1 mflat | 11 kn | 19kn | 28°C |
| Tue 10Nov | 70, good | 0.2 mflat | 12 kn | 17kn | 28°C |
Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More
Tide
- Mon 2 NovHigh 03:09 +0.8 mLow 10:02 −0.7 mHigh 16:38 +0.4 mLow 22:24 −0.3 m
- Tue 3 NovHigh 04:49 +0.6 mLow 11:35 −0.6 mHigh 18:22 +0.5 m
- Wed 4 NovLow 00:12 −0.4 mHigh 06:30 +0.6 mLow 12:54 −0.7 mHigh 19:32 +0.7 m
Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.
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.
Map
the site and its town
เกาะบิดะนอก 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.
More diving near here
2 places
- Scubafish (Baan Laanta) 37.7 km away
- Scubafish At Pimalai 38.1 km away
About
the place in full, sources, credits
About เกาะบิดะนอก
You get in from a boat. It suits Open Water divers and up, as a dive guide states it. The coast faces S: swell from the S reaches it, and wind from the N blows out to sea. 9 dive centres or shops within 10 km, the nearest 9.3 km away. The sea is about 29°C in January, its coldest month (rash vest or 1 to 2 mm), and 31°C in May, its warmest (rash vest or 1 to 2 mm). The town to stay in is Ko Lanta. Within 5 km we also list 4 dive sites.
- What it is No source states what kind of site it is.
- How deep No source states how deep it goes.
- Getting in From a boat.
- Who it suits Suits Open Water divers and up, as a dive guide states it.
- Dive centres 9 dive centres or shops within 10 km, the nearest 9.3 km away.
Water about 29°C: rash vest or 1 to 2 mm. Typical sea temperature for the time of year, not a forecast.
Visibility about 15 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Mar, May, Jun, Jul, Aug, Oct and Nov (about 15 m).
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$1,160–US$2,310 each
about US$1,160–US$2,310 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 HKT, estimated from distance and season, changing at HKG, full-service airlines, with a hold bag | about US$898–US$1,860 |
| 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$1,160–US$2,310 |
Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.
Where to stay: Ko Lanta
about 1h 10m by car · 26 places to stay
about US$33/nightcountry average
About Ko Lanta 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 28h 20m
About 28h 20m door to door from Chicago
Fly ORD → HKT, changing at Hong Kong International Airport (HKG), then 1h 35m by road
Flights ORD → HKT on your dates · Skyscanner
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Ko Lanta · GetYourGuideDive gear hire in Ko Lanta · GetYourGuide
Dive centres nearby
Island Divers 9.3 km
Phi Phi Scuba Diving Center 9.4 km
Barakuda Dive Centre 9.4 km
Profun Divers Academy 9.5 km
Sea Frog 9.5 km
The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits
What you might see
Too few open records near this site to list its animals. Ask a dive centre what you are likely to see.
This week's visibility, the current and the life no free forecast gives. Ask a dive centre before you book.