Drysuits - Neoprene
Neoprene is a type of synthetic rubber, often also used in neck and ankle seals in drysuits.
Neoprene can be specially prepared to contain millions of tiny enclosed air bubbles, forming a buoyant and thermally-insulating material.
This is called "foamed neoprene" or "foam-neoprene" (not all neoprene contains foam).
As foam-neoprene tends to shrink over the years as it out-gases and slowly becomes more rigid.
An alternative is crushed or rolled neoprene, which is used in the construction of all Northern Diver neoprene dry suits and is less susceptible to volume changes when under pressure, and shrinks less.
Crushed neoprene dry suits provide some insulation by themselves (unlike membrane dry suits), but even with foam dry suits, thermal under-suits are usually worn.
With a crushed neoprene suit, less insulation is needed underneath.
The undersuits usually vary from a fine base layer similar to the Northern Diver Thermalskin, up to a thicker layer like the Northern Diver Arctic Base or Metalux Arctic.
Some people also use a standard wet suit (worn dry), or polyester fabrics used in mountaineering and other cold weather uses (these may also be in pieces, including vests or sleeveless vests).
Such fabrics also ultimately insulate in the same way as foam, using air in which convection is retarded by the small sizes of the air spaces.
However, per volume and weight of fabric, the best-insulating dry polyester fabrics are more effective than foam, because their air pockets are smaller.
Weather, Tides, Conditions etc.
Latest predictions for Melbourne from Seabreeze
Port Phillip Local Waters Forecast
No warnings for Victoria
Forecast issued at 4:40 pm EST on Tuesday 24 May 2022.
A weakening high pressure system in the Tasman Sea is moving slowly eastwards. A low pressure trough and weakening cold front will enter western Victorian waters late Wednesday, with the trough to slowly cross the remainder of Bass Strait during Thursday and Friday. A short-lived ridge of high pressure will briefly become established over the State on Saturday, while another front crosses Tasmania.
The next routine forecast will be issued at 5:10 am EST Wednesday.
Full Port Phillip Local Waters Forecast.
Scuba Doctor Weather Station
Data from the weather station running at The Scuba Doctor. Click to view more...
We often smile as it unfolds that the Melbourne and Mornington Peninsula region can have four seasons in one day, but these small changes in weather generally do not effect diving. If rain is forecast, it doesn't matter as you're already planning to get wet! When it's raining you will often find that the wind dies down and surface conditions improve.
These are the links to the web sites we use to plan our dives near Melbourne.
The Bureau of Meteorology's National Tide Centre website has seven-day tide predictions for Port Phillip Heads, Western Port, Geelong, Melbourne and Portland. Tide predictions for Australia and the Pacific are also available on the site.
- BoM - Tide Predictions for Victoria
- Port Phillip Heads Tides
- BoM - Tide Prediction for Australia
- Bureau of Meteorology Tide Prediction for Australia
- VPM Tide Gauges
- Victorian Ports Melbourne - Waves, wind and weather
- VRCA Tide Gauges
- Tidal gauges for Corio Bay and Port of Hastings.
- A network of wave buoys off Victoria’s open coast.
The Scuba Doctor Australia provides the above information and links to other web sites for informational purposes only. The responsiblity for the accuracy and validity of the content on the pages linked to from this web site rests only with the concerned person/organisation which own the respective web sites. All queries or complaints in this regard must be directed only to the concerned person/organisation and not to The Scuba Doctor Australia or any of its constituents. The Scuba Doctor Australia does not assume any legal liablity for the accuracy, completeness or usefulness of any information linked to from the The Scuba Doctor Australia web site. The Scuba Doctor Australia does not vouch for genuiness and safety of products that may be available on the linked to web sites.
As well, the Victorian Tide Book 2022, provides complete Victorian tide predictions for 2022.
Download a copy of the 2022 Victorian Tide Tables Edition 6 (Adobe PDF | 2.96 MB) — December 2021
See also Victorian Tide Times for 2022.
Port Phillip Water Quality
Beach Report from EPA Victoria helps you decide when and where to swim in Port Phillip. EPA forecasts water quality for 36 beaches in Port Phillip.
See also, How Do Bay Water Quality Reports Work (Adobe PDF | 726.45 KB)
— by Simon Mustoe, 4 February 2022
Avoid swimming near stormwater or river outlets 24-48 hours after heavy rain.