I used to live in the Bay Area and the Pacific US West coast water is *cold* - it moves south from Alaska, as opposed to the north moving current (along the US East coast) from the Caribbean. I would imagine it is the warm SoCal air temps that making swimming possible in the Pacific, not the temp or the water. Anywho, I think Michael said in the current chapter that they had been in the tower for ~3 months and it was 1 month since he broke his arm. It takes 6 weeks for a bone to heal, so re-breaking won't be too bad.

Angel's foot was also broken around the same time (July), but he doesn't seem to have any trouble running (August). He must be super tough.

Does SoCal even have a winter?