Port Saint Lucie weather in January

In January, Port Saint Lucie sees average daytime highs of 72°F and overnight lows near 62°F, with 2.0 in of rain across 7.1 wet days and about 10.5 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 72°F through the month. The sky is clear or mostly clear about 33% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of January to 10 h 42 min by month's end. Set against the rest of the year, January is Port Saint Lucie's 8th-clearest and 2nd-windiest month. For the whole year in context, see Port Saint Lucie's year-round climate.

Daytime high
72°
12th warmest
Overnight low
62°
1st coldest
Rainfall
2.0 in
7.1 wet days
Daylight
10 h 30 min
7:17 AM – 5:44 PM
Cloud cover
55%
8th clearest
Wind
11 mph
2nd windiest
Solar energy
3.35 kWh/m²
Travel score
7.2
out of 10

Port Saint Lucie is city in St. Lucie County, Florida, United States.

Density
527/km²
people per km²
Founded
1961

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 72°F through the month.

A typical January day in Port Saint Lucie reaches about 72°F in the afternoon and slips back to 62°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 78°F. Set against its neighbours, January runs about 2°F cooler than December and about 1°F cooler than February.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17263
27263
37263
47263
57263
67263
77262
87262
97262
107262
117262
127262
137262
147262
157162
167162
177162
187162
197162
207162
217162
227162
237162
247162
257162
267162
277262
287262
297262
307262
317262

How January really feels in Port Saint Lucie

Once humidity and wind are folded in, January 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

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

Port Saint Lucie weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan72° / 62°2.07.110.57.2
Feb73° / 63°1.86.5117.5
Mar75° / 66°2.37.111.87.6
Apr78° / 70°2.27.112.67.3
May82° / 74°2.91013.36.4
Jun85° / 77°4.817.613.74.4
Jul86° / 79°3.618.213.54.0
Aug86° / 79°4.821133.7
Sep85° / 78°5.519.712.24.1
Oct82° / 75°4.012.211.36.0
Nov77° / 69°2.28.710.77.1
Dec74° / 65°1.67.310.37.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35347
45347
55347
65347
75347
85347
95248
105248
115248
125347
135347
145149
155149
165149
175149
185248
195149
205149
215248
225149
235248
245248
255149
265248
275248
285248
295248
305248
315347

Chance of precipitation in January

Any precipitation

Port Saint Lucie gets around 2.0 in of rain over 7.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
323
423
523
623
723
823
922
1022
1122
1222
1321
1421
1521
1620
1720
1820
1920
2021
2121
2221
2321
2422
2522
2623
2723
2824
2924
3024
3125

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1341420266
2351420265
3351420255
4361421254
5361521244
6371521244
7381521233
8381521233
9391522222
10401522212
11411622202
12421622191
13421622191
14421722181
15431722171
16431722171
17431822170
18431822160
19441822160
20441822160
21441822160
22441822160
23441822160
24431822160
25431822160
26431822170
27421823170
28421723170
29411723181
30411724181
31411724181

Wind in January

Winds average 11 mph in January.

Across January, daily wind ranges from about 11 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2811light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 18 min at the start of January to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 7:15 AM to 7:14 AM, and sunset from 5:34 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:155:34
210.37:165:34
310.37:165:35
410.37:165:36
510.37:165:36
610.37:175:37
710.37:175:38
810.47:175:38
910.47:175:39
1010.47:175:40
1110.47:175:41
1210.47:175:41
1310.47:175:42
1410.47:175:43
1510.47:175:44
1610.57:175:44
1710.57:175:45
1810.57:175:46
1910.57:175:47
2010.57:175:47
2110.57:175:48
2210.57:165:49
2310.67:165:50
2410.67:165:50
2510.67:165:51
2610.67:155:52
2710.67:155:53
2810.67:155:54
2910.77:145:54
3010.77:145:55
3110.77:145:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.35 kWh/m².

For context, solar energy here swings from a low near 3.08 kWh/m² to a high of 6.42 kWh/m² in May across the year — January's 3.35 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.3Moderate
153.3Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.7Moderate
Planning a trip in January

Hazard calendar for Port Saint Lucie

In seasonPeak

None of Port Saint Lucie's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Port Saint Lucie sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is January a good time to visit Port Saint Lucie?

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

7.2
Sightseeing
5th-best month of the year
5.1
Beach & pool
12th-best month of the year

January is one of the better times to visit Port Saint Lucie for general sightseeing.

What to pack for Port Saint Lucie in January

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

In January, Port Saint Lucie sees daytime highs around 72°F and nights near 62°F. Worth packing: light clothes. About 7 days see rain.

light clothes

Sea temperature near Port Saint Lucie in January

The nearest coast averages about 74°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 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 Port Saint Lucie in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Saint Lucie peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 13UV 11Dec 18UV 5
UV index (midday)Level
Jan5High
Feb7High
Mar9Very high
Apr9Very high
May10Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct8Very high
Nov6High
Dec4Moderate

Air quality in Port Saint Lucie in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Port Saint Lucie is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1819 µg/m³Dec 138 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar11Good
Apr11Good
May11Good
Jun15Moderate
Jul20Moderate
Aug17Moderate
Sep12Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Port Saint Lucie?

Port Saint Lucie sits at 27.3°N, 80.4°W, 16 ft above sea level, in United States. The nearest listed city is Stuart, 8.7 mi away.

Topography around Port Saint Lucie

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Port Saint Lucie.

Within 2 miles, the terrain around Port Saint Lucie has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 20 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 144 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 200 ft.

The land around Port Saint Lucie is covered by artificial surfaces (50%) and trees (31%) within 2 miles, grassland (30%) and trees (27%) within 10 miles, and water (39%) and grassland (25%) within 50 miles.

2 miles
43 ft
10 miles
144 ft
50 miles
200 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
January weather nearby: Stuart 8.7 mi · Palm City 9.9 mi · Fort Pierce 11 mi · Florida Ridge 20 mi · Vero Beach South 22 mi · Vero Beach 24 mi · Jupiter 29 mi · The Acreage 35 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 Port Saint Lucie (27.2939°, -80.3503°, 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).