I avoid the rain whenever possible. Never liked having my scooter sit in the rain, especially if I have to park, and I didn't bring a tarp.
My commute back home is ofter at night. Riding in the rain at night really cuts down on your visibility, not only for me, but for cars.
This means it's harder to seen in a rear/side-view mirror, especially if it's only one headlight seen; which can be confusing if they can't see
it's a motorcycle/scooter behind them or in an adjacent lane. Even though I have a visor on my helmet, it doesn't come with a windshield wiper,
so my vision is limited. Add that to the fact that moderate to heavy rain can often wash debris into roads, and intersections making for much
more dangerous road hazards and riding conditions. Having a cautious strategy for bad weather helps, but it's still more dangerous than usual.
Fortunately, my wife and I have a car. On rainy days, or if it's snowed and the roads haven't plowed, or if it's below freezing I take the car or
the hide-speed train into the city, depending on where I'm teaching that day.
Love scooting, but there are some circumstances where I walk away.
-Wolf