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Neptune Islands North

Dive site · Australia

Dive

SportChanges the scores

Mon 2 Nov – Sun 8 Nov

WhenChanges the scores

Start Live forecast, up to 10 days
Finish
From Chicago

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Advanced divers and up

57Fair

Stay home

Best on Tue 3: Sea 1.1 m, Visibility about 20 m, Water 16 °C

Mon 2 · 54 out of 100

Sea
1.4 m
Wind
13 kn
Gusts
14kn
Air
17°C

Tue 3 · 68 out of 100

Sea
1.1 m
Wind
5 kn
Gusts
7kn
Air
17°C

Wed 4 · 49 out of 100

Sea
1.4 m
Wind
19 kn
Gusts
25knboats in
Air
15°C

Thu 5 · 56 out of 100

Sea
1.4 m
Wind
10 kn
Gusts
13kn
Air
16°C

Fri 6 · 48 out of 100

Sea
1.5 m
Wind
12 kn
Gusts
16kn
Air
17°C

Sat 7 · 54 out of 100

Sea
1.5 m
Wind
12 kn
Gusts
17kn
Air
15°C

Sun 8 · 60 out of 100

Sea
1.1 m
Wind
16 kn
Gusts
20kn
Air
17°C

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

Forecast: next 10 days

Full forecast
  1. Mon 254
  2. Tue 368
  3. Wed 449
  4. Thu 556
  5. Fri 648
  6. Sat 754
  7. Sun 860
  8. Mon 968
  9. Tue 1014
  10. Wed 1147

The site in five facts

  • Down to 2 mits deepest
  • From a boathow you get in
  • Advancedand up
  • Water 16 °C7 mm wetsuit and hood
  • Faces Eswell 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.

DayScoreSeaWindGustsAir
Mon 2Nov541.4 m13 kn14kn17°C
Tue 3Nov681.1 m5 kn7kn17°C
Wed 4Nov491.4 m19 kn25knboats in15°C
Thu 5Nov561.4 m10 kn13kn16°C
Fri 6Nov481.5 m12 kn16kn17°C
Sat 7Nov541.5 m12 kn17kn15°C
Sun 8Nov601.1 m16 kn20kn17°C
Mon 9Nov680.8 m14 kn23kn19°C
Tue 10Nov141.5 m25 kn33knboats in16°C
Wed 11Nov471.5 m18 kn24kn16°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 05:48 +0.4 mLow 20:45 −0.3 m
  • Tue 3 NovHigh 06:21 +0.2 mLow 20:07 −0.2 m
  • Wed 4 NovHigh 04:08 +0.1 mLow 06:52 +0.1 mHigh 12:05 +0.2 mLow 19:21 −0.2 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).

  1. Jan7of 7
  2. Feb7of 7
  3. Mar7of 7
  4. Apr7of 7
  5. May6of 7
  6. Jun6of 7
  7. Jul6of 7
  8. Aug6of 7
  9. Sep6of 7
  10. Oct7of 7
  11. Nov7of 7
  12. Dec7of 7

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

Neptune Islands North on Google Maps · Directions

Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.

Dive site

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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.

About

the place in full, sources, credits

About Neptune Islands North

A reef dive. It goes down to 2 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces E: swell from the E reaches it, and wind from the W 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 15°C in August, its coldest month (7 mm semi-dry or a drysuit), and 20°C in February, its warmest (7 mm wetsuit and hood). No town nearby. Tulka, 54 km away, is the nearest town we list; we have not checked places to stay there. Nearest beds: Marion Bay, 83 km. Nearest airport: Port Lincoln Airport (PLO), 72 km. Within 5 km we also list 4 dive sites.

  • What it is Reef.
  • How deep Down to 2 m.
  • Getting in From a boat.
  • Who it suits Suits Advanced 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 16°C: 7 mm wetsuit and hood. 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 Jan, Oct and Dec (about 20 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$1,460–US$2,880 each

about US$1,460–US$2,880 each · 6 nights, 2 sharing: flights, hire car, 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 
WhatHow we worked it outEach
Flightsreturn MDW to ADL, estimated from distance and season, changing at SFO, full-service airlines, with a hold bagabout US$986–US$2,040
Hire car6 days, sharedabout US$148–US$242
Food7 days eating outabout US$322–US$597
Totalabout US$1,460–US$2,880

No town nearby, so no stay is in it. 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: nearest beds 83 km away

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

No town nearby

Tulka, 54 km away, is the nearest town we list; we have not checked places to stay there. Nearest beds: Marion Bay, 83 km. Nearest airport: Port Lincoln Airport (PLO), 72 km.

See places to stay near Marion Bay, 83 km away · Booking.com

Distances are straight lines: a site out at sea is reached by boat.

Getting there: about 32h 35m

About 32h 35m door to door from Chicago

Fly MDW → ADL, changing at San Francisco International Airport (SFO), then 4h 15m by road

Flights MDW → ADL 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 Neptune Islands North · GetYourGuideDive gear hire in Neptune Islands North · 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.

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The link holds the trip itself: nothing about you is kept. Check the forecast again before you book.