A very good satellite image of weather for the area.
Tours to Panama are available year-round and weather conditions vary according to season, elevation, and geographic location. In general, in the lowlands expect average temperatures from 85-95 F with moderate to high humidity compared to cooler temperatures averaging 72 F in the highlands where you may need a light sweater at night. The peak Panama travel period is December through April and off-peak season for tours to Panama is May through November. These periods generally coincide with the so-called "dry" and "rainy" seasons. However, this is an overly simplistic description of climate and Panama travel seasons. We can help you travel to Panama any time of year based on a well planned itinerary.
Panama has more than a dozen climate zones which often contrast with each other; when rain falls in one region it tends to be drier in another. While the months of December through April tend to be almost rainless on the Pacific coast (March and April are the warmest months), this is the time of year you can expect some rain on the Caribbean coast. On the Caribbean side it tends to be relatively dry in September and October, which is considered the so-called "rainy season" in the rest of the country. We also recommend travel to Panama in July during the annual veranito, or "little summer" as the locals call it, when there is a predictable dry spell in the middle of the green season.
Most people travel to Panama to escape winter in North America when average rainfall throughout the country is low and migrant bird populations are highest. But others who prefer to travel in Panama during the off-peak "green season" will appreciate natural areas more to themselves, lush vegetation, better choice of guides and accommodations, low season rates, greater variety of blooming orchids and flowers, and other benefits. During the green season rain typically falls for a few hours in the afternoon or at night and rarely disrupts Panama tours, unless you are driving on secondary roads which can become impassable. It is impossible to predict weather conditions for any specific place and time in the tropics. The increasing number of tours to Panama during the green season have made it a year round destination.