Port St. Lucie Weather: May
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Average Day Temperature: | 87.8°F |
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Average Night Temperature: | 76.8°F |
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Sea Water Temperature: | 82.6°F |
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Number of Sunny Days: | 13 days |
| Sunshine Hours: | 13.2 - 13.7 hours | |
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Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.7 in | |
| detailed information | ||
forecast
| Port St. Lucie |
Temperature
| Port St. Lucie |
Air Temperature in May, °F
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
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.
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.
The average wind speed in May is 10.0 mph.
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.
| 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 |
| 1500 | ![]() |
84°F | SW 16 mph |
| 1800 | ![]() |
80°F | SW 14 mph |
| 2100 | ![]() |
78°F | SW 9 mph |
| 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 |


































