Weather in Port St. Lucie: May
 |
Average day temperature: | 83.3°F |
| Average night temperature: | 74.0°F | |
 |
Sea water temperature: | 79.0°F |
 |
Number of sunny days: | 12 days |
| Day length: | 13.2 - 13.7 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 1.2 in. | |
| more information | ||
14 days
forecast
forecast
| Port St. Lucie |
sea water
temperature
temperature
| Port St. Lucie |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 96°F. At the same time the lowest night temperature was 68°F. Daily and nightly averages during May were 87.7°F and 74.1°F.
Sea water temperature in Port St. Lucie in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 78.9°F. The highest and lowest sea temperatures during the month were 81.5°F and 76.3°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Port St. Lucie in May is 1.2 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 9.9 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.9.
Best time for vacation in Port St. Lucie
Port St. Lucie on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Port St. Lucie
Local time: 18:08
December 25, thursday
2100
68°F
S
6 mph
6 mph
December 26, friday
0000
66°F
S
4 mph
4 mph
0300
63°F
SE
5 mph
5 mph
0600
59°F
SE
6 mph
6 mph
0900
61°F
SE
6 mph
6 mph
1200
70°F
S
5 mph
5 mph
1500
75°F
SW
4 mph
4 mph
1800
72°F
W
5 mph
5 mph
