Saint Croix weather in January

In January, Saint Croix sees average daytime highs of 26°C and overnight lows near 25°C, with 27 mm of rain across 8.3 wet days and about 11.1 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 82% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Saint Croix's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Saint Croix's year-round climate.

Daytime high
26°
10th warmest
Overnight low
25°
3rd coldest
Rainfall
27 mm
8.3 wet days
Daylight
11 hours
6:57 AM – 6:00 PM
Cloud cover
28%
2nd clearest
Wind
27 km/h
2nd windiest
Solar energy
4.79 kWh/m²
Travel score
7.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical January day in Saint Croix reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 26°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12625
22625
32625
42625
52625
62625
72625
82625
92625
102625
112625
122625
132625
142625
152625
162625
172625
182625
192625
202625
212625
222625
232625
242625
252624
262624
272624
282624
292624
302624
312624

How January really feels in Saint Croix

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

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
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.

Saint Croix weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°278.311.17.6
Feb26° / 24°185.911.47.9
Mar26° / 24°206.111.97.9
Apr26° / 25°327.512.47.4
May27° / 26°7512.312.86.3
Jun28° / 26°5811.7136.1
Jul28° / 26°8014.6135.9
Aug28° / 27°10416.912.65.1
Sep28° / 27°13717.612.14.8
Oct28° / 26°12717.911.65.2
Nov27° / 26°11615.511.25.9
Dec26° / 25°4811.7116.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
2928
3928
4928
5928
6928
7928
8937
9937
10937
11937
12946
13946
14946
15946
16946
17946
18937
19937
20937
21937
22937
23937
24928
25928
26928
27928
28928
29937
30937
31937

Chance of precipitation in January

Any precipitation

Saint Croix gets around 27 mm of rain over 8.3 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 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
330
430
530
630
730
829
929
1029
1129
1229
1328
1428
1528
1627
1727
1826
1926
2026
2125
2225
2325
2425
2525
2625
2725
2825
2925
3024
3124

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1033265
2033265
3033364
4023365
5023464
6023563
7023662
8023662
9023761
10023860
11023959
12024058
13124057
14124156
15124255
16124354
17124453
18124552
19134551
20134650
21134749
22144848
23144947
24145046
25155045
26155044
27155143
28155242
29165241
30065341
31065440

Wind in January

Winds average 27 km/h in January.

Across January, daily wind ranges from about 26 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:53 AM to 6:56 AM, and sunset from 5:51 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:535:51
211.06:545:51
311.06:545:52
411.06:545:53
511.06:555:53
611.06:555:54
711.06:555:54
811.06:565:55
911.06:565:55
1011.06:565:56
1111.06:565:57
1211.06:565:57
1311.06:575:58
1411.06:575:58
1511.06:575:59
1611.06:576:00
1711.16:576:00
1811.16:576:01
1911.16:576:01
2011.16:576:02
2111.16:576:03
2211.16:576:03
2311.16:576:04
2411.16:576:04
2511.16:576:05
2611.16:576:06
2711.26:576:06
2811.26:576:07
2911.26:576:07
3011.26:566:08
3111.26:566:08

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.79 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.65 kWh/m² in April across the year — January's 4.79 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in January

Hazard calendar for Saint Croix

In seasonPeak

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

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

Saint Croix's rainy season runs July–November, when most of the year's rain falls.

Saint Croix sees seasonal dust haze (July), heaviest in July.

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

Is January a good time to visit Saint Croix?

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

7.6
Sightseeing
3rd-best month of the year
7.1
Beach & pool
3rd-best month of the year

January is one of the better times to visit Saint Croix for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Saint Croix in January

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

In January, Saint Croix sees daytime highs around 26°C and nights near 25°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 8 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Saint Croix in January

The nearest coast averages about 27°C 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 17 km away) is warmest in September at about 29°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Saint Croix in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint Croix peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 12UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Saint Croix 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 Saint Croix is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1124 µg/m³Dec 236 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar7Good
Apr9Good
May14Moderate
Jun23Moderate
Jul24Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov9Good
Dec6Good
Location & terrain

Where is Saint Croix?

Saint Croix sits at 17.7°N, 64.7°W, 87 m above sea level, in U.S. Virgin Islands. The nearest listed city is Charlotte Amalie, 71 km away.

Charlotte AmalieRoad Town

Topography around Saint Croix

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint Croix.

Within 3 km, the terrain around Saint Croix has only modest variations in elevation — a maximum elevation change of 177 m around an average of 57 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 346 m; within 80 km, significant variations in elevation — a maximum elevation change of 512 m.

The land around Saint Croix is covered by trees (52%) and artificial surfaces (31%) within 3 km, water (74%) within 16 km, and water (96%) within 80 km.

3 km
177 m
16 km
346 m
80 km
512 m
treesshrubsgrasslandartificial surfacesbare terrainwater
January weather nearby: Charlotte Amalie 71 km · Road Town 79 km · Fajardo 117 km · Humacao 124 km · Carolina 147 km · Guayama 147 km · Caguas 149 km · Trujillo Alto 150 km

U.S. Virgin Islands travel facts

Power plugs
Type A / B
110 V · 60 Hz
Prices
≈ 89% of US
price level, 2022
GDP per capita
$44,321
2022
Safe drinking water
99%
of population, 2024
Homicide rate
49.9
per 100k, 2012
Income group
High
World Bank

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 Saint Croix (17.7275°, -64.747°, elevation 87 m), 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).