I'm riding the Berlin Velothon tomorrow - in fact, in less than 12 hours from now!
It's going to rain and be 13°C (that's 55°F).
I'm at a total loss as for what to wear, but for lack of alternatives I'll probably just go for my regular shortsleeved jersey and bicycle shorts. Maybe a longsleeved tight shirt under the jersey - or would that just be a nuisance in the rain and it's better to have wet skin than a soaked "second skin"?
No one is accompanying me to the race, so I can't hand over a rain jacket to someone just before the start (we usually have to wait 30-40 minutes before the start, that will be the worst part temperature-wise).