If the water is below 72 degrees F, you reach a point where warmth is lost faster than can be replaced by physical exertion. Meaning, if you swim 72 long enough, you will develop hypothermia. If you swim higher temps in the lake you can get by as long as you maintain exertion. Don't forget for long swims you need to keep fueling the fire, i.e. eat some carbs or gels. If your body is out of fuel, you won't be able to avoid hypothermia either. Obviously the closer the water is to 72 degrees the more of your maximum effort you need to put out to maintain warmth. Conversely, the warmer it is the easier you can be on yourself. You could always avoid the trouble and swim with a wetsuit hood, hood and top, or full suit, depending on how cold and how long the swim. If you're cutting it close, make sure you have a boat to pick you up in case of trouble, you don't want to burn yourself out and be stuck in open water freezing to death. And always swim with a swim buddy.
No it is not warm enough to swim in january, the water would be around 40 degrees. It starts getting warm enough to swim mid to late march.
Wind chill factor.
lake rotarua
Where can you swim during warm weather?
Swim
We went 2 the lake 2 swim.
It would depend on how alkaline the lake was. The sea is slightly alkaline and you can swim in that. However, I wouldn't advise that you go and swim in a lake with a pH of 14! I think this question would do better if it was rephrased.
no, they can not
Most likely, a lake trout.
yes it is relatively warm!
The southern part of Lake Como in Italy is heavily polluted and it is advised that you do not swim in this area. However, the northern portion of Lake Como is ideal for swimming.
the duck may swim on the lake, but my daddy owns the lake.