Vieux Fort weather in December

In December, Vieux Fort sees average daytime highs of 28°C and overnight lows near 25°C, with 43 mm of rain across 13 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 60% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Vieux Fort's 3rd-clearest and 6th-windiest month. For the whole year in context, see Vieux Fort's year-round climate.

Daytime high
28°
9th warmest
Overnight low
25°
5th coldest
Rainfall
43 mm
13 wet days
Daylight
11 h 12 min
6:24 AM – 5:36 PM
Cloud cover
41%
3rd clearest
Wind
22 km/h
6th windiest
Solar energy
4.95 kWh/m²
Travel score
6.2
out of 10

Vieux Fort is town in Saint Lucia.

Founded
1750

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Vieux Fort reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825
312825

How December really feels in Vieux Fort

Once humidity and wind are folded in, December 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

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

Vieux Fort weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°3311.811.36.6
Feb27° / 24°218.211.57.0
Mar27° / 24°26911.96.8
Apr28° / 25°3610.312.36.2
May29° / 26°4311.612.65.5
Jun29° / 26°7215.312.84.8
Jul29° / 26°9820.312.74.5
Aug29° / 26°11921.712.54.2
Sep29° / 26°11719.412.14.2
Oct29° / 26°13621.211.74.2
Nov28° / 25°10718.811.44.8
Dec28° / 25°431311.26.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37129
47129
57228
67327
77327
87426
97525
107525
117624
127624
137723
147822
157822
167921
177921
187921
197921
207921
217921
228020
238020
248119
258119
268119
278317
288317
298317
308416
318416

Chance of precipitation in December

Any precipitation

Vieux Fort gets around 43 mm of rain over 13 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
248
348
447
546
646
745
845
944
1044
1143
1243
1342
1442
1541
1641
1741
1840
1940
2040
2140
2240
2340
2440
2540
2640
2741
2841
2941
3042
3142

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1013861
2014851
3015841
4016831
5016840
6017830
7018820
8019810
9020800
10020800
11021790
12021790
13022780
14022780
15023770
16124750
17124750
18125740
19126730
20127720
21127720
22128710
23129700
24130690
25131680
26132670
27133660
28134650
29135640
30137620
31138610

Wind in December

Winds average 22 km/h in December.

Across December, daily wind ranges from about 21 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:16 AM to 6:31 AM, and sunset from 5:31 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:165:31
211.26:175:31
311.26:175:31
411.26:185:32
511.26:185:32
611.26:195:32
711.26:195:33
811.26:205:33
911.26:205:33
1011.26:215:34
1111.26:225:34
1211.26:225:34
1311.26:235:35
1411.26:235:35
1511.26:245:35
1611.26:245:36
1711.26:255:36
1811.26:255:37
1911.26:265:37
2011.26:265:38
2111.26:275:38
2211.26:275:38
2311.26:285:39
2411.26:285:39
2511.26:285:40
2611.26:295:40
2711.26:295:41
2811.26:305:41
2911.26:305:42
3011.26:315:42
3111.26:315:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.95 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 6.61 kWh/m² in April across the year — December's 4.95 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Vieux Fort

In seasonPeak

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

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

Vieux Fort's rainy season runs June–November, when most of the year's rain falls.

Vieux Fort sees seasonal dust haze (June–July), heaviest in June.

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

Is December a good time to visit Vieux Fort?

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

6.2
Sightseeing
4th-best month of the year
6.6
Beach & pool
6th-best month of the year

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

What to pack for Vieux Fort in December

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

In December, Vieux Fort sees daytime highs around 28°C and nights near 25°C. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 13 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Vieux Fort in December

The nearest coast averages about 28°C in December — 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 km away) is warmest in September at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Vieux Fort in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Vieux Fort peaks around March 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 20UV 14Dec 12UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Vieux Fort in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Vieux Fort is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (January, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1831 µg/m³Jan 112 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar14Moderate
Apr17Moderate
May21Moderate
Jun32Moderate
Jul26Moderate
Aug21Moderate
Sep15Moderate
Oct18Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Vieux Fort?

Vieux Fort sits at 13.7°N, 61.0°W, 0 m above sea level, in Saint Lucia. The nearest listed city is Soufriere, 19 km away.

SoufriereCastriesGros Islet

Topography around Vieux Fort

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

Within 3 km, the terrain around Vieux Fort has only modest variations in elevation — a maximum elevation change of 205 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 648 m; within 80 km, large variations in elevation — a maximum elevation change of 1,190 m.

The land around Vieux Fort is covered by water (74%) within 3 km, water (75%) and trees (22%) within 16 km, and water (92%) within 80 km.

3 km
205 m
16 km
648 m
80 km
1,190 m
treesgrasslandartificial surfaceswater
December weather nearby: Soufriere 19 km · Castries 32 km · Gros Islet 39 km · Kingstown 69 km · Calliaqua 70 km · Ducos 96 km · Fort-de-France 100 km · Le Lamentin 100 km

Saint Lucia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / G
240 V · 50 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$14,746
2025
Homicide rate
39
per 100k, 2023
Road deaths
29.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Roman Catholic 62%Protestant 26%none 6%other Christian 3%

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 Vieux Fort (13.7167°, -60.95°, elevation 0 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).