San Diego has much better weather than SF, yet there are no homeless there.<p>People there are more centrist/republican leaning.  So Weather is not the reason bums come to SF.  But the lunatic support the city gives to the homeless.  Last time they counted, 2/3 of the homeless were not from California at all.
SF, is like a homeless mecca.<p><a href="http://www.sfweekly.com/2009-12-16/news/the-worst-run-big-city-in-the-u-s/" rel="nofollow">http://www.sfweekly.com/2009-12-16/news/the-worst-run-big-ci...</a>