Hi Oscar,
Welcome to planDisney!
Looking at the weather for your arrival date, I see why this question is important! You will be relieved to know that you can bring umbrellas to the parks. Just check the
Park Rules for specific guidance on prohibited items. I also recommend a poncho. There have been plenty of times when my umbrella was of little help with the rain and wind, so we always carry ponchos as well.
If you have not done so already, make a park plan for the weather. Consider the attractions that are indoors or covered. I would also suggest making an
advanced dining reservation. We have experienced a few torrential downpours in the parks and it's always nice when such a downpour starts right when we have a dining reservation. We can sit, enjoy a meal, and dry off for a while. Also consider making that dining reservation at a location with windows. At Magic Kingdom, we love
Tony's Town Square Restaurant. It has an indoor patio that has lovely views of Main Street, U.S.A.
I do have a few additional tips - take some time to browse through the stores during the rain. Consider a character meet and greet that might be inside. At Magic Kingdom, for example, I recommend that you see
Princess Tiana and a Visiting Princess at Princess Fairytale Hall. You can always review the
Attractions List to make some strategic plans with the rainy weather in mind.
Oscar, I just sent a wish to the Evening Star, trusting that your weather improves as the day progresses. I must say, we have laughed a lot in the midst of our rainy day adventures - those memories are priceless!
Magic and memories.
Donyell