Landslide said:
Definitely! It's not just Sod's Law that means you get p*nct*res in the rain - there's no penetration without lubrication!
Indeed. It's all to do with friction.
To see for yourself, get an old inner tube and a sharp knife. Make sure everything is dry and try and cut the inner tube; even with a sharp knife it's quite hard work.
Now wet the inner tube and knife edge, it'll slice right through the inner tube with much less effort.
That's why you tend to get more punctures in the wet.
If you avoid the obvious problems; white lines, manhole covers, puddles (as you say, they may be hiding deep potholes) then it's no more dangerous than when dry. In really heavy rain then it may help to turn on your lights to make you more visible.