Greenville weather in December

In December, Greenville sees average daytime highs of 28°C and overnight lows near 25°C, with 114 mm of rain across 26.4 wet days and about 11.7 hours of daylight. It is the 5th-warmest and 10th-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 20% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 42 min by month's end. Set against the rest of the year, December is Greenville's 2nd-clearest and 12th-windiest month. For the whole year in context, see Greenville's year-round climate.

Daytime high
28°
5th warmest
Overnight low
25°
7th coldest
Rainfall
114 mm
26.4 wet days
Daylight
11 h 42 min
6:41 AM – 6:24 PM
Cloud cover
58%
2nd clearest
Wind
7 km/h
12th windiest
Solar energy
4.46 kWh/m²
Travel score
4.1
out of 10

Greenville is capital of Sinoe County, Liberia.

Founded
1838

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 Greenville 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 Greenville

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.

Greenville weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°9121.411.74.7
Feb28° / 25°10522.111.84.0
Mar28° / 25°13226.7123.6
Apr29° / 25°16027.112.13.3
May28° / 25°29429.912.23.3
Jun27° / 25°34527.612.33.7
Jul26° / 24°21822.212.34.5
Aug26° / 24°22623.512.24.4
Sep26° / 24°37328.6123.6
Oct27° / 24°22030.311.93.5
Nov28° / 24°14828.711.83.6
Dec28° / 25°11426.411.74.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 38% of December, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
34951
45050
55149
65149
75149
85248
95347
105347
115446
125545
135644
145644
155743
165842
175941
186040
196139
206238
216337
226337
236436
246436
256436
266436
276436
286535
296436
306436
316436

Chance of precipitation in December

Any precipitation

Greenville gets around 114 mm of rain over 26.4 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 85% and peaks near 94% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
293
393
492
592
691
790
890
989
1089
1188
1288
1387
1486
1586
1685
1785
1884
1983
2083
2182
2281
2381
2480
2579
2678
2777
2876
2975
3074
3173

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10946
20946
30946
40955
50955
60955
70955
80964
90964
100964
110964
120964
130964
140964
150964
160964
170964
180955
190955
200955
210946
220946
230946
240946
250946
260946
271936
281936
291936
301936
312935

Wind in December

Winds average 7 km/h in December, the calmest month.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 42 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 6:34 AM to 6:48 AM, and sunset from 6:18 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:346:18
211.76:346:18
311.76:356:18
411.76:356:19
511.76:366:19
611.76:366:20
711.76:376:20
811.76:376:20
911.76:386:21
1011.76:386:21
1111.76:396:22
1211.76:396:22
1311.76:406:22
1411.76:406:23
1511.76:406:23
1611.76:416:24
1711.76:416:24
1811.76:426:25
1911.76:426:25
2011.76:436:25
2111.76:436:26
2211.76:446:26
2311.76:446:27
2411.76:456:27
2511.76:456:28
2611.76:466:28
2711.76:466:29
2811.76:476:29
2911.76:476:30
3011.76:476:30
3111.76:486:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.46 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 5.06 kWh/m² in April across the year — December's 4.46 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in December

Hazard calendar for Greenville

In seasonPeak

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

Greenville sees seasonal dust haze (February), heaviest in February.

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

Is December a good time to visit Greenville?

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

4.1
Sightseeing
4th-best month of the year
4.4
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Greenville for sightseeing.

What to pack for Greenville in December

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

In December, Greenville sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

Sea temperature near Greenville in December

The nearest coast averages about 29°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 16 km away) is warmest in May at about 29°C and coldest in August 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
Jan28Tropical
Feb28Warm
Mar28Warm
Apr29Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug26Warm
Sep27Warm
Oct27Warm
Nov28Tropical
Dec29Tropical

UV index in Greenville in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Greenville peaks around April 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highApr 19UV 13Dec 15UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun10Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Greenville 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 Greenville is worst in February — around 42 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (September, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateFeb 841 µg/m³Sep 167 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb42Poor
Mar33Moderate
Apr29Moderate
May14Moderate
Jun13Moderate
Jul12Good
Aug9Good
Sep7Good
Oct9Good
Nov14Moderate
Dec32Moderate
Location & terrain

Where is Greenville?

Greenville sits at 5.0°N, 9.0°W, 10 m above sea level, in Liberia. The nearest listed city is Buchanan, 148 km away.

BuchananZwedruPleebo CityHarperPetit GraboParaTabouHarbel

Topography around Greenville

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

Within 3 km, the terrain around Greenville has only modest variations in elevation — a maximum elevation change of 23 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 88 m; within 80 km, significant variations in elevation — a maximum elevation change of 431 m.

The land around Greenville is covered by water (34%), trees (24%) and mangroves (21%) within 3 km, trees (48%) and water (48%) within 16 km, and trees (64%) and water (35%) within 80 km.

3 km
23 m
16 km
88 m
80 km
431 m
treesgrasslandartificial surfaceswatermangroves
December weather nearby: Buchanan 148 km · Zwedru 154 km · Pleebo City 159 km · Harper 163 km · Petit Grabo 193 km · Para 198 km · Tabou 198 km · Harbel 200 km

Liberia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 0% of US
price level, 2025
GDP per capita
$915
2025
Happiness
4.3 / 10
World Happiness, 2025
Homicide rate
3.1
per 100k, 2012
Road deaths
38.9
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Christian 85%Muslim 12%none 3%Traditional 1%

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 Greenville (5.0113°, -9.0388°, elevation 10 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. 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).