hi all, Im new to spearfishing and i live in box hill which is like an hours drive from Mornington. I was just wondering if there's any way to predict the visibilty under the water without actually checking it yourself. Its just really frustrating to drive for an hour and see the viz is like 1 meter and then have to drive an hour back. I normally fish around mt Martha PPB.
THNX

check live cams you find several spots in PPB that has live cam. Look up in google.

The more you dive the better you will get at knowing what conditions will work in different areas. Mostly you want an offshore wind and not much rain for the bay. So Mt Martha likes a wind with some east in it. There are exceptions to this rule like Black Rock, which often has better vis with a small amount of south chop on the water. I think this may be due to clearer water from south in the bay being moved up to push dirty Yarra water away from shore? Also Rye to Portsea and open beaches don't seem to be effected by rain as much. This may be due to more water movement in these areas. I use internet sites like seabreeze, swellnet, willyweather, port of melbourne wavedata, weatherzone charts and bureau of meteorology(BOM), but none of these are 100% as the weather is always changing. They are more of a guide.

Hope this helps,
Tim

Thnx Tim I really needed this info.
ill probably end up going next friday or on the weekend. Still haven't gotten a chance to use my new speargun yet.
Thanks bro

Oh 1 more thing, i picked up a cheap 3mm wetsuit but haven't got a weightbelt. will this matter much??

yes, of course it will matter.

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Depends how much you like being very positively buoyant. I mean, you can go without being weighted, but it just means you wont be able to dive down very far, and expend a lot of energy doing so. Just smashing butteries in 2 metres of water? probably be okay. Anything deeper, or you want to target fish mid water, and it will be an issue.