Port Saint Lucie Climate by Month
Port Saint Lucie, Florida, United States
Hot summers and mild winters, with rain spread through the year.
The climate in Port Saint Lucie is one of hot summers and mild winters, with rain spread through the year. Expect highs of 91°F (33°C) in July and 75°F (24°C) in January, with the coldest nights (January) near 53°F (12°C). About 59 in (1487 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 91°F(33°C)
- Average high, July
- Coldest nights
- 53°F(12°C)
- Average low, January
- Rain per year
- 59 in(1487 mm)
- No clear rainy season
- Humidity
- 74%
- Sunniest: May
Best and worst months in Port Saint Lucie
Best for weatherDecember to February are the best time for weather in Port Saint Lucie: highs near 76°F (25°C) and about 2.6 in (65 mm) of rain a month.
Least pleasantAugust and September are the least pleasant; September is the wettest, with 9.1 in (231 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in January.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Port Saint Lucie weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 75°F(24°C) | 53°F(12°C) | 2.5 in(63 mm) | 74% | 3.3 |
| FebFebruaryBest | 77°F(25°C) | 55°F(13°C) | 2.7 in(69 mm) | 73% | 4.0 |
| MarMarch | 80°F(27°C) | 59°F(15°C) | 3.4 in(87 mm) | 70% | 4.9 |
| AprApril | 83°F(29°C) | 63°F(17°C) | 2.4 in(62 mm) | 68% | 5.7 |
| MayMay | 87°F(31°C) | 68°F(20°C) | 5.4 in(136 mm) | 71% | 6.2 |
| JunJune | 90°F(32°C) | 72°F(22°C) | 7.4 in(188 mm) | 77% | 5.5 |
| JulJuly | 91°F(33°C) | 73°F(23°C) | 6.9 in(174 mm) | 77% | 5.9 |
| AugAugust | 91°F(33°C) | 74°F(23°C) | 7.2 in(184 mm) | 76% | 5.5 |
| SepSeptember | 90°F(32°C) | 73°F(23°C) | 9.1 in(231 mm) | 76% | 4.6 |
| OctOctober | 86°F(30°C) | 69°F(21°C) | 6.2 in(157 mm) | 74% | 4.0 |
| NovNovember | 81°F(27°C) | 62°F(17°C) | 2.9 in(73 mm) | 73% | 3.4 |
| DecDecemberBest | 77°F(25°C) | 56°F(14°C) | 2.5 in(63 mm) | 76% | 2.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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