Diving Conditions in Sydney
Welcome to Sydney's most reliable and up-to-date dive conditions page. Every morning, our team checks the tides, visibility, water temperature, swell, and weather to recommend the best Sydney dive sites for the day.
Whether you're planning a weekend dive, checking if today’s conditions are safe, or just dreaming about your next underwater adventure, this is your go-to source. Bookmark this page and check back daily for the latest updates.
I treated the attached prompt as a request to generate today’s report. I checked the supplied inputs against the BOM coastal and enclosed-waters forecasts: BOM has no NSW marine warnings, coastal winds variable about 10 kt becoming NE 10–15 kt this evening, seas below 1 m, and an inshore southerly swell of 1–1.5 m, while enclosed waters are lighter with seas below 0.5 m. Your supplied local data still points to very good shore-diving conditions: 0.6 m S swell at 8.6 seconds, 19°C water, 8–10 m visibility, and Oak Park as the lead site.
Sydney Diving Conditions – 20 June 2026
Updated Daily by Local Experts
Today’s Dive Conditions
Today is very much worth diving, with mostly sunny weather, 5–8 m visibility and no runoff concerns. The mixed southerly and northeasterly swell is modest, but it can still push a little surge around exposed corners. Stay with protected entries, check the sets before kitting up, and avoid exposed sites such as Oak Park, The Leap and Voodoo.
Today’s Dive Plan
The best shore option is Bare Island, especially the protected eastern side, on the rising tide into the 12:56 pm high. Aim for a late-morning start through the midday high-water window. This suits certified divers who are comfortable with normal winter shore entries, and newer divers should go with an experienced buddy or guide. Check the bridge, channel and outer corners before committing. If surge is wrapping in, shift to The Steps at Kurnell and dive close to high slack.
This Weekend’s Dive Conditions
Best Weekend Conditions: Both days are worth organising, with Sunday slightly easier if the forecast holds. Saturday has more mixed swell, while Sunday trends to cleaner southerly swell and lighter enclosed-water conditions.
Sunday: — southern sites remain in play. Best option: Bare Island or The Steps. Best daylight timing: rising tide from the morning low toward the 1:52 pm high. Main check: southerly swell lift on the entry and any afternoon wind shift.
Conditions at a Glance
Weather: Mostly sunny, low rain risk, NW winds 15–20 km/h becoming light in the early afternoon.
Air Temperature: 20°C
Water Temperature: 19°C
Visibility: 5–8 m, moderate confidence; no runoff issues.
Swell: 0.8–1.0 m ENE/NE @ 11 s, with around 1.0 m S background swell.
Tides: Daylight tides — High 12:56 pm 1.43 m
Recommended Sites: Bare Island — best on the incoming tide and protected side; The Steps — backup option near high slack.
Detailed Report
The morning starts just after a dawn low, then the tide rises into a useful midday high. That rising water is good for Bare Island, with cleaner water pushing through and easier route planning on the protected side. The 5–8 m visibility is enough for relaxed reef touring and critter hunting, but the mixed swell will stir corners, gutters and shallow surge zones.
Bare Island gets the first recommendation because today’s southerly swell sits below the usual danger point and the incoming tide favours the protected channel. Keep the route conservative. Start protected, avoid pushing around the exposed outer edge if surge is obvious, and turn the dive before the entry starts looking busy. The Steps is the best backup for divers who want a Kurnell option. Aim close to high slack and keep The Leap off the plan unless conditions look much flatter than forecast.
Oak Park is not the first pick today. The northeasterly component is close enough to its exposure to make the entry and exit less predictable. Voodoo and exposed Kurnell jumps are for another day.
Water temperature is 19°C. Most divers will be comfortable in a 5–7 mm suit; add a hood if you feel the cold or plan a longer second dive. Carry a torch for ledges and sponge life, and use an SMB if you surface away from the planned exit.
Safety: Check the entry for three full sets before committing. If the surge is wrapping into the channel, visibility drops below the forecast range, or the exit looks pushy, change site or postpone.
Note: These are good winter conditions for a local shore dive. Organise a buddy, aim for the late-morning high-water window, and keep the plan protected rather than adventurous.
Safe dives and happy bubbles!
Book a Dive – View This Weekend’s Calendar → 
Latest Dive Report – As Seen Underwater Within the Past 24 Hours
Note: As always, it’s important to check out the particular site before committing to it. While we strive to provide the most accurate information, diving conditions can change rapidly. Always check the latest updates before you head out.
When choosing your dive site to get the best conditions, we make the following recommendations:
How Conditions Affect Dive Sites
Lilli Pilli – Best on an incoming tide
Well-protected against all swell. Exposed to strong Westerly winds.
Ship Rock – Best 15 minutes before high tide
Not exposed to any swell. Best on a high slack tide.
Bass & Flinders – Best on an incoming tide
Good except for a NE swell greater than 1.4m.
Oak Park – Best on low tide
Should not be dived if SE to N swell is greater than 0.7m.
VooDoo – Best on high tide
Best with SW to NW swells. All other swells must be under 0.5m.
Cape Solander – Tide has no effect
Best with SW to NW swells. Other swells must be below 0.7m.
The Leap – Best near high tide
Should not be dived if E to S swell is greater than 1m. Best on an incoming tide.
The Steps – Swell-sensitive
Protected, but exposed to E to ESE swells greater than 1m.
Sutherland Point – Best on an incoming tide
Well protected. Only exposed to ESE swell greater than 1.8m.
Bare Island – Best with N swell and incoming tide
Should not be dived if S swell is greater than 1.2m.
Shelly Beach – Sheltered and beginner-friendly
Should not be dived if swell is greater than 0.8m. Protected from all but westerly swell.
Understanding Water Visibility in Sydney
What affects water visibility in Sydney?
Water visibility is influenced by tides, swell direction, weather, and even seasonal algae blooms. After rain or storms, visibility tends to drop due to sediment stirred up in the water.
How do tides impact visibility?
Slack high tide often provides the best visibility, as water movement slows and particles settle. Many Sydney sites are clearest just before high tide.
What’s the typical visibility range?
Visibility usually ranges from 5m to 10m but can exceed 20m in winter or drop below 2m after several days of heavy rain. July to October offers the clearest conditions.
Where are the best spots for good vis?
Sites like Shelly Beach, Bare Island (east side), and Ship Rock are known for consistent visibility—especially during high tide with minimal swell.
Sydney Water Temperatures by Month
Diving in Sydney is great all year, with mild seasonal changes that affect both water temperature and visibility. Whether you prefer warmer dives or crystal-clear winter water, there's always a great dive site to suit the season, making it the best to dive Sydney.
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Water Temperature: Ranges from 15°C (winter) to 25°C (summer)
Visibility: Typically 5–10m, up to 20m from July to October
Best Clarity: Winter (July–October), when seas are calm and algae is low
Here’s how Sydney’s sea temperatures shift throughout the year:
| Month | Min °C | Max °C |
|---|---|---|
| January | 21.5 | 25.1 |
| February | 22.1 | 25.3 |
| March | 21.6 | 25.3 |
| April | 20.8 | 24.6 |
| May | 18.8 | 22.6 |
| June | 17.5 | 21.1 |
| July | 17.3 | 20.9 |
| August | 17.4 | 20.2 |
| September | 17.2 | 19.9 |
| October | 17.5 | 20.9 |
| November | 19.1 | 22.1 |
| December | 19.5 | 24.3 |
What to Expect: Sydney offers a diverse diving experience year-round. In summer (Dec–Mar), enjoy warmer waters and active marine life, ideal for newer divers. Autumn and spring bring steady conditions and great critter sightings. Winter (Jul–Oct) delivers the clearest visibility, making it perfect for photography, deep dives, and encounters with weedy sea dragons. With the right gear, every season is dive season in Sydney!
Diving in Sydney: Your Questions Answered
When is the best time to dive in Sydney?
Sydney is great for diving year-round. For the calmest seas and clearest visibility, July to October is ideal. Water is warmer from October to May, making it popular for beginners.
Is Sydney good for beginner divers?
Absolutely! Sites like Shelly Beach and Bare Island offer easy shore entries, shallow depths, and protected conditions — perfect for new divers.
How’s the visibility for diving in Sydney?
Visibility typically ranges from 5 to 10 metres, with the clearest conditions from July to October. After heavy rain, it can drop to 1–2 metres.
What’s the average water temperature for diving in Sydney?
Expect temperatures from around 15°C in winter to 25°C in summer.
Are there strong currents at Sydney’s dive sites?
Most popular sites around Sydney have mild currents, suitable for divers of all levels. Tidal flow can affect some locations, so timing matters.
What marine life can I see while diving in Sydney?
You may spot weedy sea dragons, wobbegong sharks, blue groupers, cuttlefish, octopus, and even seals or dolphins.
Should I wear a wetsuit when diving in Sydney?
Yes. Most divers use a 5–7mm wetsuit year-round. In summer, a 3–5mm suit or shorty is okay for shallow dives, but conditions can vary.
How can I check diving conditions before heading out?
Check this page daily for updated reports. You can also use apps like Seabreeze or WillyWeather for swell, tide, and wind forecasts. Or just call us!
Still have questions?
Contact Us or Ask Our Team
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