Bonto Reef
Dive site · Indonesia
Is it worth the trip?
87Good out of 100 for your dates
2 days tie for best
Tue 3 · 87 out of 100
- Sea
- 0.2 mflat
- Wind
- 3 kn
- Gusts
- 5kn
- Air
- 29°C
Wed 4 · 86 out of 100
- Sea
- 0.3 m
- Wind
- 5 kn
- Gusts
- 8kn
- Air
- 29°C
Thu 5 · 86 out of 100
- Sea
- 0.2 mflat
- Wind
- 5 kn
- Gusts
- 8kn
- Air
- 29°C
Fri 6 · 87 out of 100
- Sea
- 0.1 mflat
- Wind
- 4 kn
- Gusts
- 9kn
- Air
- 30°C
Sat 7 · 88 out of 100
- Sea
- 0.1 mflat
- Wind
- 3 kn
- Gusts
- 5kn
- Air
- 29°C
Sun 8 · 88 out of 100
- Sea
- 0.1 mflat
- Wind
- 1 kn
- Gusts
- 5kn
- Air
- 29°C
Mon 9 · 87 out of 100
- Sea
- 0.1 mflat
- Wind
- 3 kn
- Gusts
- 10kn
- Air
- 29°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Mon 286, good
- Tue 387, good
- Wed 486, good
- Thu 586, good
- Fri 687, good
- Sat 788, good
- Sun 888, good
- Mon 987, good
- Tue 1088, good
- Wed 1188, good
The site in five facts
- Down to 25 mits deepest
- From a boathow you get in
- Open Waterand up
- Water 30 °Crash vest or 1 to 2 mm
- Faces Wswell 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 | 86, good | 0.2 mflat | 6 kn | 9kn | 29°C |
| Tue 3Nov | 87, good | 0.2 mflat | 3 kn | 5kn | 29°C |
| Wed 4Nov | 86, good | 0.3 m | 5 kn | 8kn | 29°C |
| Thu 5Nov | 86, good | 0.2 mflat | 5 kn | 8kn | 29°C |
| Fri 6Nov | 87, good | 0.1 mflat | 4 kn | 9kn | 30°C |
| Sat 7Nov | 88, good | 0.1 mflat | 3 kn | 5kn | 29°C |
| Sun 8Nov | 88, good | 0.1 mflat | 1 kn | 5kn | 29°C |
| Mon 9Nov | 87, good | 0.1 mflat | 3 kn | 10kn | 29°C |
| Tue 10Nov | 88, good | 0.0 mflat | 4 kn | 8kn | 29°C |
| Wed 11Nov | 88, good | 0.0 mflat | 3 kn | 5kn | 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 NovHigh 04:22 +0.6 mLow 11:58 −0.9 mHigh 19:20 +0.4 m
- Tue 3 NovLow 00:33 +0.0 mHigh 05:42 +0.4 mLow 13:00 −0.7 mHigh 20:10 +0.5 m
- Wed 4 NovLow 01:59 −0.1 mHigh 07:19 +0.3 mLow 14:02 −0.6 mHigh 20:53 +0.5 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.
Best time to go
No month stands out
Good diving days in a typical week, each month, for Advanced divers, from 2016 on (ERA5 history scored the same way).
- Jan6of 7: a trip from Sat 2 Jan
- Feb7of 7: a trip from Sat 6 Feb
- Mar7of 7: a trip from Sat 6 Mar
- Apr7of 7: a trip from Sat 3 Apr
- May7of 7: a trip from Sat 1 May
- Jun7of 7: a trip from Sat 5 Jun
- Jul7of 7: a trip from Sat 3 Jul
- Aug7of 7: a trip from Sat 7 Aug
- Sep7of 7: a trip from Sat 4 Sept
- Oct7of 7: a trip from Sat 2 Oct
- Nov7of 7: a trip from Tue 3 Nov
- Dec7of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Map
the site and its town
Bonto Reef on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.
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
3 places
- Hot Rocks 7.6 km away
- Tikno Reef 8.1 km away
- Lighthouse Reef 14.2 km away
About
the place in full, sources, credits
About Bonto Reef
A reef dive. It goes down to 25 m. You get in from a boat. It suits Open Water divers and up, as a dive guide states it. The coast faces W: swell from the W reaches it, and wind from the E blows out to sea. No dive centre within 50 km on the map: book a liveaboard or a boat from further off. The sea is about 28°C in February, its coldest month (3 mm wetsuit), and 30°C in November, its warmest (rash vest or 1 to 2 mm). The town to stay in is Bontoh.
- What it is Reef.
- How deep Down to 25 m.
- Getting in From a boat.
- Who it suits Suits Open Water divers and up, as a dive guide states it.
- Dive centres No dive centre within 50 km on the map: book a liveaboard or a boat from further off.
Water about 30°C: rash vest or 1 to 2 mm. Typical sea temperature for the time of year, not a forecast.
Visibility about 20 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in May, Jun and Sep (about 30 m).
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Where to stay: Bontoh
about 5 min by car
about US$33/nightcountry average
About Bontoh its beds, food and every spot near it
Nearest town: Bontoh, 2 km. We have not checked places to stay in Bontoh yet. The nearest beds we have counted are in Raba, 39 km away. Search before you plan on staying there.
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.
In the water
Dives and courses in Bontoh · GetYourGuideDive gear hire in Bontoh · GetYourGuide
Dive centres nearby
No dive centre mapped within 50 km.
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.
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.