Staying Home Sucks, home

Katrin reef

Dive site · Indonesia

Open Water divers and up

Scored for Advanced divers

Is it worth the trip?

88Good out of 100 for your dates

Home sucks

5 days tie for best

Each day of your trip, out of 100

Tue 3 · 88 out of 100

Sea
0.1 mflat
Wind
1 kn
Gusts
4kn
Air
29°C

Wed 4 · 87 out of 100

Sea
0.1 mflat
Wind
2 kn
Gusts
4kn
Air
29°C

Thu 5 · 88 out of 100

Sea
0.1 mflat
Wind
2 kn
Gusts
4kn
Air
29°C

Fri 6 · 88 out of 100

Sea
0.1 mflat
Wind
2 kn
Gusts
8kn
Air
30°C

Sat 7 · 87 out of 100

Sea
0.1 mflat
Wind
2 kn
Gusts
5kn
Air
29°C

Sun 8 · 88 out of 100

Sea
0.0 mflat
Wind
1 kn
Gusts
6kn
Air
29°C

Mon 9 · 88 out of 100

Sea
0.0 mflat
Wind
3 kn
Gusts
10kn
Air
28°C

Tap a day for sea, wind and water. Full forecast

Forecast: next 10 days

Full forecast
  1. Mon 288, good
  2. Tue 388, good
  3. Wed 487, good
  4. Thu 588, good
  5. Fri 688, good
  6. Sat 787, good
  7. Sun 888, good
  8. Mon 988, good
  9. Tue 1088, good
  10. Wed 1188, good

The site in three facts

  • 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.

Sea and wind forecast and score for each day at Katrin reef
DayScoreSeaWindGustsAir
Mon 2Nov88, good0.0 mflat2 kn6kn29°C
Tue 3Nov88, good0.1 mflat1 kn4kn29°C
Wed 4Nov87, good0.1 mflat2 kn4kn29°C
Thu 5Nov88, good0.1 mflat2 kn4kn29°C
Fri 6Nov88, good0.1 mflat2 kn8kn30°C
Sat 7Nov87, good0.1 mflat2 kn5kn29°C
Sun 8Nov88, good0.0 mflat1 kn6kn29°C
Mon 9Nov88, good0.0 mflat3 kn10kn28°C
Tue 10Nov88, good0.0 mflat2 kn7kn29°C
Wed 11Nov88, good0.0 mflat3 kn7kn29°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 03:06 −0.1 mHigh 05:27 −0.0 mLow 12:44 −0.4 mHigh 21:06 +0.3 m
  • Tue 3 NovLow 12:36 −0.2 mHigh 23:23 +0.2 m
  • Wed 4 NovLow 08:37 −0.2 mHigh 14:55 +0.0 mLow 19:56 −0.0 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

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

2 places

About

the place in full, sources, credits

About Katrin reef

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 10 km, the nearest 30 km away. The sea is about 30°C all year: rash vest or 1 to 2 mm. The town to stay in is Ampana. Within 5 km we also list 1 dive site.

  • 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 No dive centre within 10 km, the nearest 30 km away.

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 Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov and Dec (about 25 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: Ampana

Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn

Closest

Ampana

about 1h 15m by car · 17 places to stay

about US$33/nightcountry average

See 17 places to stay in Ampana · Booking.com

About Ampana 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

An estimate, one way; the journey never changes the score.

In the water

Dive centres nearby

No dive centre mapped within 25 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.

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