Taking into account the local weather in Aregua is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually January and December with an average temp of 82°F, while the coldest months are July and June with an average of 65°F. The rainiest months in Aregua are October, November, December, and April, with each month seeing an average of 7 inches of rainfall.