Ko Thian - Scuba Diving
Dive site · Thailand
Is it worth the trip?
80Good out of 100 for your dates
2 days tie for best
Tue 3 · 81 out of 100
- Sea
- 0.0 mflat
- Wind
- 2 kn
- Gusts
- 8kn
- Air
- 28°C
Wed 4 · 80 out of 100
- Sea
- 0.1 mflat
- Wind
- 2 kn
- Gusts
- 5kn
- Air
- 29°C
Thu 5 · 80 out of 100
- Sea
- 0.1 mflat
- Wind
- 4 kn
- Gusts
- 6kn
- Air
- 29°C
Fri 6 · 80 out of 100
- Sea
- 0.1 mflat
- Wind
- 2 kn
- Gusts
- 9kn
- Air
- 29°C
Sat 7 · 81 out of 100
- Sea
- 0.1 mflat
- Wind
- 1 kn
- Gusts
- 6kn
- Air
- 28°C
Sun 8 · 80 out of 100
- Sea
- 0.2 mflat
- Wind
- 2 kn
- Gusts
- 8kn
- Air
- 29°C
Mon 9 · 79 out of 100
- Sea
- 0.1 mflat
- Wind
- 4 kn
- Gusts
- 11kn
- Air
- 29°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Mon 280, good
- Tue 381, good
- Wed 480, good
- Thu 580, good
- Fri 680, good
- Sat 781, good
- Sun 880, good
- Mon 979, good
- Tue 1077, good
- Wed 1178, good
The site in three facts
- Open Waterand up
- Water 29 °Crash vest or 1 to 2 mm
- Faces SWswell 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 | 80, good | 0.1 mflat | 2 kn | 3kn | 29°C |
| Tue 3Nov | 81, good | 0.0 mflat | 2 kn | 8kn | 28°C |
| Wed 4Nov | 80, good | 0.1 mflat | 2 kn | 5kn | 29°C |
| Thu 5Nov | 80, good | 0.1 mflat | 4 kn | 6kn | 29°C |
| Fri 6Nov | 80, good | 0.1 mflat | 2 kn | 9kn | 29°C |
| Sat 7Nov | 81, good | 0.1 mflat | 1 kn | 6kn | 28°C |
| Sun 8Nov | 80, good | 0.2 mflat | 2 kn | 8kn | 29°C |
| Mon 9Nov | 79, good | 0.1 mflat | 4 kn | 11kn | 29°C |
| Tue 10Nov | 77, good | 0.4 m | 7 kn | 25kn | 30°C |
| Wed 11Nov | 78, good | 0.2 mflat | 8 kn | 21kn | 29°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 NovLow 00:53 −0.9 mHigh 14:57 +0.6 m
- Tue 3 NovLow 01:45 −0.8 mHigh 15:11 +0.5 m
- Wed 4 NovLow 02:33 −0.7 mHigh 13:44 +0.3 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
Ko Thian - Scuba Diving 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
5 places
- Diving and Snorkeling spot 2.7 km away
- Blueberry Hill 13.1 km away
- HTMS Chang (Wreck) - Scuba Diving 16.5 km away
- Hin Luk Bath 18.7 km away
- Diving and Snorkeling spot 19.4 km away
About
the place in full, sources, credits
About Ko Thian - Scuba Diving
It suits Open Water divers and up, as a dive guide states it. The coast faces SW: swell from the SW reaches it, and wind from the NE blows out to sea. 2 dive centres or shops within 10 km, the nearest 9.4 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 Ban Bang Bao. 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.
- Who it suits Suits Open Water divers and up, as a dive guide states it.
- Dive centres 2 dive centres or shops within 10 km, the nearest 9.4 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 Jan, Feb, Mar, Apr, May and Dec (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$1,130–US$2,250 each
about US$1,130–US$2,250 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 2 November 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to TDX, estimated from distance and season, changing at HKG and BKK, full-service airlines, with a hold bag | about US$866–US$1,800 |
| Hire car | 6 days, shared | about US$47–US$81 |
| Stay | 6 nights, a mid-range double, shared | about US$101–US$161 |
| Food | 7 days eating out | about US$114–US$208 |
| Total | about US$1,130–US$2,250 |
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: Ban Bang Bao
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
about 35 min by car · 38 places to stay
about US$34/nightcountry average
About Ban Bang Bao its beds, food and every spot near it
About US$34 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 2 November 2026.
Getting there: about 30h 45m
About 30h 45m door to door from Chicago
Fly ORD → TDX, changing at Hong Kong International Airport (HKG) and Suvarnabhumi Airport (BKK), then 1h 15m by road
Flights ORD → TDX on your dates · AviasalesAdeSIM for your phone · Search on AiraloAd
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Ban Bang Bao · GetYourGuideDive gear hire in Ban Bang Bao · GetYourGuide
Dive centres nearby
Koh Mak Divers 9.4 km
BBDivers 9.6 km
Koh Mak Divers 11 km
BB Divers 20 km
THAI OCEAN ACADEMY KOH CHANG 20 kmPADIRAIDSSITDI
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 records at this site itself, so these are the animals divers and surveys have recorded at other sites within 25 km in the last 15 years. A record says someone saw it there, not that you will.
Long-spined sea urchin Diadema setosum
Seen in 5 records.
Moon wrasse Thalassoma lunare
Seen in 5 records.
Eightband butterflyfish Chaetodon octofasciatus
Seen in 4 records.
Bluering angelfish Pomacanthus annularis
Seen in 4 records.
Bluechin parrotfish Scarus ghobban
Seen in 4 records.
Pink skunk clownfish Amphiprion perideraion
Seen in 3 records.
Cephalopholis formosa
Seen in 3 records.
Copperband butterflyfish Chelmon rostratus
Seen in 3 records.
Threespot dascyllus Dascyllus trimaculatus
Seen in 3 records.
Pastel-green wrasse Halichoeres chloropterus
Seen in 3 records.
Redcoat Sargocentron rubrum
Seen in 3 records.
Marbled spinefoot Scarus rivulatus
Seen in 3 records.
Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO) and GBIF.org (1 November 2026, doi:10.15468/dl.jeesns), from the datasets named here, CC0 and CC BY records only. Names: WoRMS and GBIF; common names from the Catalogue of Life, the GBIF Backbone and Wikidata. Largest datasets here: iNaturalist Research-grade Observations; NABU|naturgucker; Bell Museum fishes. Credits
This week's visibility and the current no free forecast gives. Ask a dive centre before you book.
Saved: this link opens the same trip
The link holds the trip itself: nothing about you is kept. Check the forecast again before you book.