A friend of mine swears by the Exte Ondo capris. She says they are nice and long.

For full tight, maybe something like the Cannondale lightweight tights? They are the same thin spandex material as most workout pants. Not sure if they come with a chamois option.

Some brands like Voler also make knee and leg warmers that aren't fleeced on the inside, so they are cooler.

A light colored, lightweight, longsleeve jersey might do the trick. With a long zipper for ventilation if needed.