Sydney Dive Conditions

Updated Daily by Local Dive Experts

Sydney’s underwater conditions are showing signs of improvement as the swell height begins to fall. The Steps is the recommended site for manageable and enjoyable dives, even with the lingering southerly swell. Visibility remains limited to 4-5 metres, so careful planning is essential for a safe and rewarding experience in the water.

Dive Conditions – 1 July 2025

Sydney’s diving conditions are hazardous today due to severe weather and water conditions. With heavy rain, damaging winds, and rapidly rising swell, visibility is poor, at just 4 to 6 metres. Only well-protected sites like Lilli Pilli can be considered, but even these are marginally safe. Divers are strongly encouraged to prioritise safety and avoid entering the water.

Conditions at a Glance:

• Weather: Heavy rain and damaging winds are possible, most likely near the coast. Chance of a thunderstorm near the coast. Winds southwesterly 25 to 40 km/h, increasing to 35 to 55 km/h near the coast. Large and powerful surf conditions in the afternoon and evening are expected to be hazardous for coastal activities.
• Air Temperature: Max 16°C
• Water Temperature: 18°C
• Visibility: 4-64 metres.
• Swell:  1.4m height and rapidly rising, S direction, 6.4-second period.
• Tides: High Tide at 12:05 am (1.67m)
• Recommended Sites: Only well-protected sites like Lilli Pilli are diveable.

Weekend Diving Preview

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Detailed Report

 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

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.

• 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:

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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