Climate & Weather in Port St. Lucie
Port St. Lucie has a humid subtropical climate (Koppen Cfa) -- warm winters, hot and humid summers, and no true dry season, though rainfall concentrates heavily in the May-through-October wet season. The defining seasonal fact for anyone relocating is hurricane season, which runs half the calendar year.
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Learn moreTemperatures
Average temperatures range from the mid-60s in winter to the low 90s in summer; the lowest average low is about 59.5°F in January, and the highest average high is about 87.6°F in August. Winters are mild rather than cold, and summers are consistently hot and humid rather than dry-hot.
Rainfall and the wet season
The city receives roughly 53 inches of rain annually, concentrated heavily in the wet season from May through October -- September is typically the wettest month, averaging around 5.7 inches. November through April is comparatively dry and is generally cited as the most pleasant stretch of weather, which is also peak snowbird season.
Hurricane season
Atlantic hurricane season runs June 1 through November 30. Port St. Lucie is not directly on the Atlantic coast (the nearest ocean beaches are a 15-20 minute drive into neighboring Martin County municipalities), which offers some buffer from direct storm surge compared to barrier-island communities, but the city is still fully within the wind, rain, and inland-flooding risk zone for any hurricane tracking through the region -- reflected in the elevated homeowners insurance costs discussed on the Insurance & Hazard Costs page.
Key takeaways
- Humid subtropical climate: mild winters (average low around 60°F in January) and hot, humid summers (average high around 88°F in August).
- About 53 inches of rain per year, concentrated in the May-October wet season; November-April is the driest and most popular season to visit or move.
- Hurricane season (June 1-November 30) covers half the year and is the single most consequential climate fact for insurance costs and moving/closing timing.
- The city itself is inland of the Atlantic coastline, offering some buffer from direct storm surge, but remains fully exposed to hurricane wind, rain, and inland flooding.
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