About Everglades Weather
Everglades National Park has two main seasons. The dry season, from December to April, has lower temperatures, humidity, and a corresponding lack of mosquitoes. The rest of the year falls into the wet season, and the park can be extremely uncomfortable (and uncrowded) during this time, due both to high temperatures and humidity and battalions of mosquitoes. In addition to the normal discomforts of the wet season, the Atlantic Hurricane Season runs from June through November and can cause problems up to and including park evacuations and closings.
Visitation Seasons

The spring begins as the visitation season is coming to a close at the park. Heat, humidity, and rain increase, and by the end of April things are very uncomfortable.

The summer is the time of lowest visitation and services, in contrast to most national parks. High heat and humidity, along with almost unimaginable numbers of mosquitoes and other insects, make the park very uncomfortable.

The fall continues the trend of the summer season, with relief coming towards the end of the season in late November and early December.

The winter is the time of highest visitation and services. The last two weeks of December in particular are very busy. Temperatures are more moderate, humidity and insects are low, and rain, while still common, is much less. Wildlife viewing, particularly the alligators, is at its best, as they concentrate in the areas of deep water, especially at Royal Palm and the Anhinga Trail.