Depends on the type of site, but I experience my lowest traffic on weekends, holidays, and the first couple of days of every month. Summer months are the slowest, January and February are great.
One of my better adsense days today I must say although I'm still pissed about my cpc for one of my sites :/
Last week-end probably the worst. 50% watching World Cup matches and another 25% watching F1 racing and 20% travelling.
ahh phew, it seems I am not alone in the summer/weekend AS revenue dry-up. I sure hope the World cup/ tennis/tour de France etc. are all over soon.... Seems I have alot of ppl wasting time at work looking for the infos I provide
Its funny.. I originally thought that the weekends sucked (and im sure for the most part they still do), but yesterday I reached my goal! $6.00 for the day!
It's impossible to make money these days.. Stock markets downn so bad,, then this adsense revenue drop
See? That's why I keep preaching that you shouldn't jump to conclusions based on a day or two or even three days of erratic behavior, and should just wait for a real pattern to emerge.
True, never start testing your CTR on weekends, or just a couple days. As a marketer you gota find ways to get around this stuff. Mainly I'd name all my channels and rotate them to see which ones do good.