Fort Pierce weather in May

In May, Fort Pierce sees average daytime highs of 82°F and overnight lows near 74°F, with 3.0 in of rain across 11 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 42% of the time in May, and the air most often feels muggy.

Daylight stretches from about 13 hours at the start of May to 13 h 36 min by month's end. Set against the rest of the year, May is Fort Pierce's 2nd-clearest and 8th-windiest month. For the whole year in context, see Fort Pierce's year-round climate.

Daytime high
82°
5th warmest
Overnight low
74°
7th coldest
Rainfall
3.0 in
11 wet days
Daylight
13 h 24 min
5:37 AM – 6:58 PM
Cloud cover
49%
2nd clearest
Wind
10 mph
8th windiest
Solar energy
6.41 kWh/m²
Travel score
6.3
out of 10

Fort Pierce is county seat of St. Lucie County, Florida, United States.

Density
587/km²
people per km²
Founded
1901

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 82°F through the month.

A typical May day in Fort Pierce reaches about 82°F in the afternoon and slips back to 74°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 85°F. Set against its neighbours, May runs about 3°F warmer than April and about 3°F cooler than June.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18072
28072
38072
48072
58172
68172
78173
88173
98173
108173
118173
128173
138173
148273
158274
168274
178274
188274
198274
208274
218274
228274
238275
248275
258275
268275
278375
288375
298375
308376
318376

How May really feels in Fort Pierce

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Fort Pierce weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan71° / 62°2.17.210.57.1
Feb73° / 63°1.86.8117.3
Mar75° / 65°2.37.511.87.5
Apr78° / 69°2.27.912.67.2
May82° / 74°3.01113.36.3
Jun84° / 77°5.619.813.74.2
Jul86° / 78°4.620.913.63.8
Aug86° / 79°5.723133.5
Sep84° / 78°6.02112.24.0
Oct81° / 74°4.313.311.35.9
Nov76° / 69°2.29.310.67.1
Dec73° / 65°1.77.310.37.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26931
36931
46931
57030
66931
76931
86931
96931
106931
116832
126832
136733
146733
156634
166535
176535
186436
196337
206337
216238
226238
236139
246139
256040
265941
275941
285743
295644
305545
315347

Chance of precipitation in May

Any precipitation

Fort Pierce gets around 3.0 in of rain over 11 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 53% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
125
225
325
424
525
625
725
826
927
1028
1129
1230
1332
1433
1535
1636
1738
1839
1940
2042
2143
2244
2345
2445
2546
2647
2748
2849
2951
3052
3153

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
17132239190
26132140200
36132141200
45132042200
55122042210
65121943210
74121944210
84111945220
93111845230
103101846230
112101846240
12291746250
13281746270
14181746280
15171646300
16161645310
17161645330
18051544350
19051543370
20041441400
21041440420
22031339450
23031237470
24031236500
25021134521
26021032551
2702930581
2801829602
2901827622
3001725652
3101623673

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 hours at the start of May to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:48 AM to 5:31 AM, and sunset from 6:49 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:486:49
213.15:476:50
313.15:466:51
413.15:456:51
513.15:446:52
613.15:446:52
713.25:436:53
813.25:426:53
913.25:416:54
1013.25:416:55
1113.35:406:55
1213.35:396:56
1313.35:396:56
1413.35:386:57
1513.35:386:58
1613.45:376:58
1713.45:366:59
1813.45:366:59
1913.45:357:00
2013.45:357:00
2113.45:347:01
2213.55:347:02
2313.55:347:02
2413.55:337:03
2513.55:337:03
2613.55:327:04
2713.55:327:04
2813.65:327:05
2913.65:317:05
3013.65:317:06
3113.65:317:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.05 kWh/m² to a high of 6.41 kWh/m² in May across the year — May's 6.41 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.1Intense
Planning a trip in May

Hazard calendar for Fort Pierce

In seasonPeak

In May, Fort Pierce sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Fort Pierce sits in the Atlantic hurricane belt; the season peaks August–October.

Fort Pierce's rainy season runs May–October, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Fort Pierce?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.3
Sightseeing
7th-best month of the year
6.7
Beach & pool
2nd-best month of the year

May is a reasonable time to visit Fort Pierce for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fort Pierce in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Fort Pierce sees daytime highs around 82°F and nights near 74°F. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Fort Pierce in May

The nearest coast averages about 79°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 mi away) is warmest in August at about 84°F and coldest in February near 74°F.

The water stays above 68°F all year — warm enough for a swim any month.

75°80°85°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan74Refreshing
Feb74Refreshing
Mar74Refreshing
Apr76Warm
May79Warm
Jun82Warm
Jul83Tropical
Aug84Tropical
Sep84Tropical
Oct82Warm
Nov79Warm
Dec77Warm

UV index in Fort Pierce in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fort Pierce peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 12UV 11Dec 18UV 4
UV index (midday)Level
Jan5Moderate
Feb7High
Mar9Very high
Apr9Very high
May10Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct8Very high
Nov5High
Dec4Moderate

Air quality in Fort Pierce in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Fort Pierce is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1817 µg/m³Dec 156 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar9Good
Apr10Good
May10Good
Jun14Moderate
Jul17Moderate
Aug15Moderate
Sep10Good
Oct8Good
Nov6Good
Dec6Good
Location & terrain

Where is Fort Pierce?

Fort Pierce sits at 27.4°N, 80.3°W, 16 ft above sea level, in United States. The nearest listed city is Florida Ridge, 9.9 mi away.

Topography around Fort Pierce

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Fort Pierce.

Within 2 miles, the terrain around Fort Pierce has only modest variations in elevation — a maximum elevation change of 46 ft around an average of 13 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 148 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 200 ft.

The land around Fort Pierce is covered by water (38%) and artificial surfaces (30%) within 2 miles, water (44%), grassland (22%) and trees (20%) within 10 miles, and water (40%), grassland (28%) and trees (20%) within 50 miles.

2 miles
46 ft
10 miles
148 ft
50 miles
200 ft
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Florida Ridge 9.9 mi · Port Saint Lucie 11 mi · Vero Beach South 13 mi · Vero Beach 14 mi · Stuart 18 mi · Palm City 20 mi · Sebastian 27 mi · Jupiter 38 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Fort Pierce (27.4467°, -80.3256°, elevation 16 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).