I often use a semi-fluid grease SFG that has about the same viscosity characteristics as tomato ketchup; this is mobile within the hub when the hub is in use, and keeps the seal lips wetted well, but doesn't leak out too much when the hub is not in use.
In hubs with cartridge bearings you can remove the inwards facing seals and put a generous fill of SFG inside. This keeps everything sweet for a long time.
As a rule, if the seals are good enough, you can use a thinner lubricant, in quantity, inside the hub. Just for fun I have run well-sealed hubs in gear oil and there is usually enough seepage to ensure that the outside of the hub is oily to the touch (good for resisting corrosion, bad for disc brakes) and the hubs run as sweet as a nut.
SFG works the same but leaks out less quickly.
One of the benefits of using a more generous fill of lube inside hubs is that the airspace is reduced, and thus temperature changes draw less air (and water) past the seals into the bearings.
cheers