Port St. Lucie, Florida

Climate of Port St. Lucie, Florida

North America

Port St. Lucie is a city located in St. Lucie County, Florida, United States. Positioned on the eastern coast of the state, it is part of the larger metropolitan area that includes cities like Fort Pierce and West Palm Beach. Port St. Lucie is situated at approximately 27.2730° N latitude and 80.3582° W longitude. The city enjoys a tropical climate, typical of southern Florida, characterized by warm temperatures, high humidity, and distinct wet and dry seasons. See citiesplustowns for a full list of cities in Florida.

Geographical Features:

Port St. Lucie is situated on Florida’s Treasure Coast, named for the treasures lost in the 1715 Spanish treasure fleet shipwreck. The city is bordered by the St. Lucie River to the west and the Indian River Lagoon to the east, providing residents with access to water-related activities. The Atlantic Ocean is just a short drive to the east, contributing to the coastal influences on the climate.


Port St. Lucie experiences a tropical climate with distinct wet and dry seasons, typical of southern Florida. This climate type is characterized by warm to hot temperatures year-round, high humidity, and the occasional threat of tropical storms and hurricanes during the Atlantic hurricane season.


Summers in Port St. Lucie are hot and humid. From June to September, the city experiences average high temperatures ranging from the low to mid-90s Fahrenheit (32-35°C). The humidity levels are high, contributing to the sultry feel of the air. Warm evenings with temperatures in the 70s Fahrenheit (21-26°C) provide some relief, but nights remain relatively warm.

This period is also the peak of the Atlantic hurricane season, which runs from June 1 to November 30. While not every year sees direct impacts, the potential for tropical storms or hurricanes brings the need for preparedness and attention to weather forecasts.


Winters in Port St. Lucie are mild and pleasant. From December to February, average high temperatures range from the mid-70s to low 80s Fahrenheit (24-29°C). The humidity levels drop, creating a more comfortable atmosphere. While frost is extremely rare, residents may experience cooler evenings with temperatures dipping into the 50s and 60s Fahrenheit (10-20°C).

The winter months are a popular time for outdoor activities and attract seasonal residents from colder northern climates seeking a warmer retreat.

Spring and Fall:

Spring and fall serve as transitional seasons with gradually changing temperatures. In spring (March to May), the city experiences warming temperatures, with average highs ranging from the mid-70s to mid-80s Fahrenheit (24-29°C). This period is marked by the blooming of flowers and trees, adding vibrant colors to the landscape.

Fall (September to November) sees a gradual cooling of temperatures, with average highs ranging from the mid-80s to low 90s Fahrenheit (29-35°C). While fall in Florida is not characterized by the same dramatic foliage changes seen in northern regions, the weather becomes more comfortable, and humidity levels decrease.


Port St. Lucie experiences a distinct wet season and a dry season. The wet season typically runs from June to October, with the highest precipitation occurring from June to September. During this time, the city receives the majority of its annual rainfall, often in the form of afternoon thunderstorms.

The dry season, from November to May, sees significantly lower rainfall. December and January are the driest months, with reduced chances of daily afternoon showers.

Annually, Port St. Lucie receives an average of about 48 inches (122 cm) of rainfall. The seasonal variation in precipitation is influenced by the movement of the Intertropical Convergence Zone (ITCZ) and the positioning of the Bermuda High, which directs weather systems over the region.

Impact on Lifestyle:

The tropical climate of Port St. Lucie has a profound impact on the lifestyle of its residents. The abundance of warm and sunny days allows for a wide range of outdoor activities throughout the year. Residents and visitors take advantage of the coastal location by enjoying activities such as boating, fishing, and beach outings.

The mild winters attract “snowbirds” from colder regions, who spend the winter months in Florida to escape the cold. The winter season is marked by an influx of seasonal residents, contributing to the local economy and creating a dynamic community atmosphere.

The summer months, while warm, also bring the potential for tropical storms and hurricanes. Residents are accustomed to hurricane preparedness measures, including monitoring weather forecasts, securing homes, and having emergency plans in place. The city is well-prepared for storm events, and residents are educated about evacuation routes and safety precautions.

The coastal influences contribute to the availability of fresh seafood and a variety of water-based recreational opportunities. The Indian River Lagoon and the St. Lucie River provide scenic settings for activities like kayaking, paddleboarding, and birdwatching.

Cultural events and festivals are often scheduled to coincide with the milder seasons, attracting both residents and tourists. The city’s parks and outdoor spaces host community events, concerts, and farmers’ markets, creating a vibrant and engaging atmosphere.

Port St. Lucie, Florida, enjoys a tropical climate characterized by warm temperatures, high humidity, and distinct wet and dry seasons. The coastal influences and proximity to water contribute to the city’s lifestyle, providing opportunities for outdoor activities, water-based recreation, and a dynamic community atmosphere. Residents and visitors alike appreciate the year-round warmth, and the city’s preparedness for tropical weather events ensures that life in Port St. Lucie continues to thrive in this inviting coastal environment.

Port St. Lucie, Florida