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 – 17 June 2026
Updated Daily by Local Experts
Today is a very good Sydney diving day, especially at protected southern shore sites. The swell is modest at 0.6 m from the SE, visibility should sit around 8–10 m, and light winds should keep entries comfortable through the main diving window. Bare Island is the best all-round pick today, with The Steps and Sutherland Point also strong choices.
Conditions at a Glance
Weather: Partly cloudy with light winds. Coastal winds N–NW around 10 kt, with enclosed waters below 10 kt early before tending N–NE during the afternoon.
Air Temperature: 21°C
Water Temperature: 20°C
Visibility: 8–10 m
Swell: 0.6 m SE @ 10.4 s
Tides: High 10:07 am 1.28 m; Low 3:33 pm 0.42 m
Recommended Sites: Bare Island — best all-round option with good protection and visibility; The Steps — protected Kurnell choice if SE sets are noticeable.
Detailed Report
The weather and sea state are lining up well for local diving today. Light winds and seas below 1 m should keep surface conditions manageable, while the small SE swell should allow most protected southern shore sites to dive comfortably.
The 10.4-second swell period gives the 0.6 m swell a little more push than a short-period swell, but the height is still low. Expect mild movement at exposed corners and easier conditions at protected entries. Visibility should be 8–10 m at the better ocean-flushed sites, with no runoff concerns noted.
Bare Island is the best first choice today. It should offer a strong mix of entry comfort, marine life and visibility, especially around the 10:07 am high tide and on the protected side. The Steps and Sutherland Point are also good options, particularly if the SE swell is more noticeable than expected at Bare Island.
Oak Park is possible around the 3:33 pm low tide, but it is not the first pick today because SE swell can affect the platform even when the height is small. Check the entry and exit before committing. Voodoo and The Leap should be treated cautiously unless the actual sea is genuinely settled.
Ship Rock is worth considering around the 10:07 am high slack tide. Outside the slack window, current becomes the main issue. Kurnell dives should be easiest near slack water or on a suitable incoming tide.
Boat Diving Outlook
Boat diving looks normal and suitable at appropriate Sydney sites today. Winds are well below the Abyss 25 kt maximum, seas are low, and the swell is modest. The SE direction and medium period mean skippers should still check pickup comfort at exposed sites, but this is a workable boat forecast.
Henry Head is the easiest protected boat option. Magic Point should also be realistic if local chop remains low and pickup conditions match the forecast. More exposed offshore reefs should still be assessed separately on the day, but normal inshore boat diving looks suitable.
Water temperature is 20°C. A 5 mm wetsuit is comfortable for most divers, with a hood or vest useful for longer dives. Bring a torch to restore colour under ledges and in sponge gardens, even with good visibility.
Caution: Conditions are favourable, but SE swell can still wrap into exposed entries. Check Oak Park, Voodoo, The Leap and exposed Kurnell edges before committing.
Dive Tips for Today
- Choose Bare Island as the best all-round shore dive.
- Use The Steps or Sutherland Point if SE sets are noticeable.
- Dive Oak Park around the 3:33 pm low tide only if the platform is settled.
- Time Ship Rock around the 10:07 am high slack tide.
- Boat diving looks suitable, with Henry Head and Magic Point both realistic depending on skipper judgement and pickup comfort.
Safe dives and happy bubbles!
Weekend Dive Forecast
Saturday: Saturday looks good, with 0.6 m southerly swell at 13.5 seconds. The swell height is small, but the long period means exposed entries may get stronger sets than the number suggests. Bare Island, The Steps and Sutherland Point should be the strongest shore options. Oak Park may be possible around low tide if the platform is settled, but Voodoo, The Leap and other exposed ledges should be downgraded unless the sea is genuinely calm. Boat diving should be site-dependent but generally workable at appropriate inshore sites if wind stays light; Henry Head and Magic Point are the practical first recommendations, with exposed offshore reefs assessed carefully.
Sunday: Sunday also looks favourable, with 0.5 m ESE swell at 10.7 seconds. The small height should keep most protected southern sites workable, but ESE swell can wrap into Kurnell and Oak Park, so entries still need checking. Bare Island, The Steps and Sutherland Point should be reliable first choices, with Oak Park possible if the platform is calm. Boat diving should remain suitable at appropriate sites if wind and chop stay low, with Henry Head and Magic Point the better practical recommendations.
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.
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