Measurements:
°C
°F
Port St. Lucie
86°F
SW 14 mph
Feels like: 88°F
Precip: 2%
World Resorts USA Port St. Lucie Weather May Weather in Port St. Lucie

Port St. Lucie Weather: May

Average Day Temperature: 87.8°F
Average Night Temperature: 76.8°F
Sea Water Temperature: 82.6°F
Number of Sunny Days: 13 days
Sunshine Hours: 13.2 - 13.7 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.7 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 100°F. The lowest night temperature was 71°F. The average values for day and night temperatures during May were 92.7°F и 77.3°F respectivly.

Port St. Lucie Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Port St. Lucie was 84.3°F. The maximum and minimum values were 80.4°F and 86.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Port St. Lucie is 1.7 in. It makes may one of the most rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 10.0 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Port St. Lucie in May is 8.3 hours.

Best Time to Visit Port St. Lucie
The most sunny months:
March 15 days
December 14 days
May 13 days
The most warm months:
July 91.7 °F
August 91.7 °F
September 89.5 °F
Warmest sea temperature:
August 88.7 °F
September 88.3 °F
July 87.6 °F
The most cold months:
January 72.6 °F
December 75.9 °F
February 76.8 °F
The most rainy months:
September 4 days
May 3 days
June 3 days
The most windy months:
November 11 mph
April 11 mph
March 11 mph

Port St. Lucie on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Port St. Lucie
Local time: 12:57
04 jun, thursday
1500 84°F
SW
16 mph
1800 80°F
SW
14 mph
2100 78°F
SW
9 mph
05 jun, friday
0000 76°F
W
9 mph
0300 76°F
W
8 mph
0600 76°F
W
9 mph
0900 80°F
SW
13 mph
1200 82°F
SW
13 mph