We were in Disney 2 years ago the first week of April. It was busy but not nearly as busy as it is in the summer. I think we had one really busy day at the Magic Kingdom which I believe was a Saturday. The weather was hot. Abnormally hot. We wore a lot of shorts. I believe the average temp ranges from 60-82. It was in the 90's for two of the days we were there. I will be there again the first week of April. I think it is a great time to go.