Port St. Lucie, FL weather in July
Port St. Lucie is hot and oppressively humid in July, with frequent rain: highs average 89°F and nights drop to about 74°F. Rain falls on about 13 days. This is the peak of the warm season in Port St. Lucie.
- Normal high
- 89°F
- Normal low
- 74°F
- Wet days
- 13
- 6.2 in total
- Muggy days
- 31
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 89°F | 90°F |
| Normal low | 74°F | 74°F |
| Chance of a wet day | 45% | 44% |
| Sunrise / sunset | 6:30 am / 8:20 pm | 6:44 am / 8:10 pm |
| Daylight | 13.8 h | 13.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical July day
- 6 am78°Fdew point 74°F
- 9 am85°Fdew point 74°F
- Noon88°Fdew point 74°F
- 3 pm87°Fdew point 74°F
- 6 pm84°Fdew point 73°F
- 9 pm81°Fdew point 74°F
NOAA hourly normals (local standard time) from West Palm Beach Intl Airport (45 mi away); average wind 8 mph; clear or few clouds in 40% of daytime hours, mostly cloudy or overcast in 29%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph18 of 31
- Hot dayshigh 90°F or more19 of 31
- Muggy daysdaily mean dew point 65°F or more31 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in9 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 6.2 in; a dry July brings about 3.8 in and a wet one about 8.4 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How July varies from year to year
- Warmest July, 1991-20201998: average high 94°F
- Coolest July2013: average high 87°F
- Wettest July1991: 13.2 in
- Driest July1999: 0.8 in
- Highest reading101°F (July 20, 1993)
- Lowest reading64°F (July 8, 1995)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 88°F | 89°F | 89°F |
| Normal low | 73°F | 74°F | 75°F |
| Wet days | 14 | 13 | 15 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 13.8 h | 13.7 h | 13.1 h |
Highs change by +1°F from June and 0°F into August.
How Port St. Lucie ranks in July
- Normal high162nd warmest of 378 cities; 22nd of 23 in Florida
- Wet days335th driest of 378
- Comfortable days275th most of 340
What to pack for Port St. Lucie in July
- Light, breathable clothing – highs near 89°F and about 31 muggy days
- A rain jacket or umbrella – rain on about 13 days
- A swimsuit – about 18 beach days
Heating and cooling
July has 0 heating degree days and 516 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.
Questions
How hot is Port St. Lucie in July?
The normal high is 89°F and the normal low is 74°F. From 1991 to 2020 the hottest July reading was 101°F (July 20, 1993).
Does it rain a lot in Port St. Lucie in July?
About 13 days in July have at least 0.01 in of precipitation, and the normal total is 6.2 in. The wettest July in 1991-2020 was in 1991 (13.2 in); the driest was in 1999 (0.8 in).
Is July a good time to visit Port St. Lucie?
July ranks 11th of 12 months on our comfort score for Port St. Lucie (37 out of 100). It has almost no comfortable days and about 19 days at 90°F or hotter. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Ft Pierce (USC00083207), 10 mi N of the city center, 25 ft . NOAA normals and daily records, 1991-2020.
- Frost dates: Stuart (USC00088620), 9.9 mi SE of the city center, 13 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: West Palm Beach Intl Airport (USW00012844), 45 mi SSE of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Melbourne Intl Airport (USW00012838), 58 mi NNW of the city center, 22 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Palm Beach International Airport (722030-12844), 45 mi SSE of the city center, 11 ft . Hourly observations, 1991-2020.