Staying Home Sucks, home

Numnumin Reef

Dive site · Papua New Guinea

Advanced divers and up

Is it worth the trip?

85Good out of 100 for your dates

Home sucks

3 days tie for best

Each day of your trip, out of 100

Wed 4 · 85 out of 100

Sea
0.3 m
Wind
2 kn
Gusts
5kn
Air
28°C

Thu 5 · 86 out of 100

Sea
0.3 m
Wind
0 kn
Gusts
3kn
Air
28°C

Fri 6 · 85 out of 100

Sea
0.3 m
Wind
3 kn
Gusts
5kn
Air
29°C

Sat 7 · 84 out of 100

Sea
0.3 m
Wind
5 kn
Gusts
8kn
Air
29°C

Sun 8 · 85 out of 100

Sea
0.3 m
Wind
4 kn
Gusts
10kn
Air
28°C

Mon 9 · 86 out of 100

Sea
0.3 m
Wind
2 kn
Gusts
7kn
Air
29°C

Tue 10 · 86 out of 100

Sea
0.3 m
Wind
3 kn
Gusts
8kn
Air
30°C

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

Forecast: next 10 days

Full forecast
  1. Tue 384, good
  2. Wed 485, good
  3. Thu 586, good
  4. Fri 685, good
  5. Sat 784, good
  6. Sun 885, good
  7. Mon 986, good
  8. Tue 1086, good
  9. Wed 1185, good
  10. Thu 1285, good

The site in five facts

  • Down to 22 mits deepest
  • From a boathow you get in
  • Advancedand up
  • Water 30 °Crash vest or 1 to 2 mm
  • Faces NWswell 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 Advanced divers and up, as a dive guide states it. Scored for Advanced divers.

Sea and wind forecast and score for each day at Numnumin Reef
DayScoreSeaWindGustsAir
Tue 3Nov84, good0.3 m6 kn9kn29°C
Wed 4Nov85, good0.3 m2 kn5kn28°C
Thu 5Nov86, good0.3 m0 kn3kn28°C
Fri 6Nov85, good0.3 m3 kn5kn29°C
Sat 7Nov84, good0.3 m5 kn8kn29°C
Sun 8Nov85, good0.3 m4 kn10kn28°C
Mon 9Nov86, good0.3 m2 kn7kn29°C
Tue 10Nov86, good0.3 m3 kn8kn30°C
Wed 11Nov85, good0.3 m6 kn12kn29°C
Thu 12Nov85, good–5 kn16kn28°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

  • Tue 3 NovLow 07:06 −0.4 mHigh 15:01 +0.3 mLow 21:21 +0.1 m
  • Wed 4 NovHigh 00:38 +0.1 mLow 07:25 −0.3 mHigh 14:52 +0.3 mLow 21:02 −0.0 m
  • Thu 5 NovHigh 01:47 +0.1 mLow 07:35 −0.2 mHigh 14:45 +0.3 mLow 21:12 −0.1 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 Numnumin Reef

A reef dive. It goes down to 22 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces NW: swell from the NW reaches it, and wind from the SE blows out to sea. 1 dive centre or shop within 10 km, the nearest 2.2 km away. The sea is about 30°C all year: rash vest or 1 to 2 mm. The town to stay in is Kavieng. Within 5 km we also list 4 surf spots and 2 dive sites.

  • What it is Reef.
  • How deep Down to 22 m.
  • Getting in From a boat.
  • Who it suits Suits Advanced divers and up, as a dive guide states it.
  • Dive centres 1 dive centre or shop within 10 km, the nearest 2.2 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 May, Jun, Aug and Sep (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: Kavieng

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

Closest

Kavieng

about 5 min by car · 7 places to stay

about US$74/nightcountry average

See 7 places to stay in Kavieng · Booking.com

About Kavieng its beds, food and every spot near it

About US$74 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

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

In the water

Dive centres nearby

  • Scuba Ventures 2.2 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

Animals divers and surveys have recorded within 2 km of this site in the last 15 years. A record says someone saw it here, not that you will.

  • Smooth box crab Calappa hepatica

    Seen in 14 records, mostly Jun.

  • Actinimenes inornatusPalaemonid shrimps

    Seen in 8 records.

  • Flattened shrimp Harpiliopsis depressa

    Seen in 8 records.

  • Laomenes amboinensisPalaemonid shrimps

    Seen in 8 records.

  • Holthuis cleaner shrimp Ancylomenes holthuisi

    Seen in 6 records.

  • Petrolisthes scabriculusPorcelain crabs

    Seen in 6 records.

  • Polyonyx obesulusPorcelain crabs

    Seen in 6 records.

  • Pontonides maldivensisPalaemonid shrimps

    Seen in 6 records.

  • Pachycheles sculptusPorcelain crabs

    Seen in 5 records.

  • Apopontonia falcirostrisPalaemonid shrimps

    Seen in 4 records.

  • Chlorocurtis jactans

    Seen in 4 records.

  • Ciliopagurus strigatusLefthanded hermit crabs

    Seen in 4 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: The crustaceans collection (IU) of the Muséum national d'Histoire naturelle (MNHN - Paris); The crustaceans collection (IU) of the Muséum national d'Histoire naturelle (MNHN - Paris) in the southwest Pacific region; iNaturalist Research-grade Observations. Credits

This week's visibility and the current no free forecast gives. Ask a dive centre before you book.