Guadeloupe is sandwiched between several popular tropical tourist destinations. The keyword is TROPICAL ISLAND, which it would not be if it were not as close to the equator as it is.
Guadeloupe weather is warm throughout the year with daily highs near 81º. Early mornings and late evenings are somewhat cooler (December-March). There is only a 5 degree difference between Summer and Winter temperatures and humidity is quite manageable. This is because of it's location.