Worried about excess rain

[Leafer]

Hello all, I am new to the forum and new to container planting as well, so I am definitely in need of some advice from the seasoned vets. I have a 31 gallon container going right now with two plants in it, and it has been raining a LOT here almost every day since the plants have been 'tainer-fied (ie -- in the container ). Anyway, I am not worried about there being too much water, so much as I am worried about the abundant rain leaching a lot of the lime and fertilizer out before the plants can benefit from it. Am I being paranoid, or is this a valid concern?

Oh, and one more thing, my plants only get about 4 hours of direct sunlight a day, and a few more indirect -- is that enough, or should I move them to a better location? Thanks in advance.