So bored one night, watching tv, you see a tv advert for a beautiful family holiday, and you think ooo that looks good! Let me just pick up my phone and have a little nosey!!
I know, you're not hopeful, you're just "looking"..... then there it is.... a holiday that looks oh so tempting, click.... oh look, if you book now, you save 20%, there's a pool, kids entertainment, good food, good reviews... omg wow, this might actually be a really good last minute deal, fuck it, book it.... check diary....... oh no, we said yes to Jimmy's birthday for 2 hours on a Saturday afternoon in August, we can't go on this holiday!
I call bollocks on that! You'd book it faster than you could order a "sorry we could attend" card for poor little Jimmy!
Sorry OP, August is a crap month for school birthday parties, it always will be so pick 1 date in July or September and stick with it!
I have a Xmas baby and all his school parties have been in July with the full explanation of Xmas is shit time to have a birthday, that's why we do the half birthday, simple!