Harper weather in January

In January, Harper sees average daytime highs of 29°C and overnight lows near 24°C, with 95 mm of rain across 19.6 wet days and about 11.8 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 29% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of January to 11 h 48 min by month's end. Set against the rest of the year, January is Harper's 1st-clearest and 9th-windiest month. For the whole year in context, see Harper's year-round climate.

Daytime high
29°
4th warmest
Overnight low
24°
8th coldest
Rainfall
95 mm
19.6 wet days
Daylight
11 h 48 min
6:47 AM – 6:33 PM
Cloud cover
55%
1st clearest
Wind
9 km/h
9th windiest
Solar energy
4.82 kWh/m²
Travel score
4.5
out of 10

Harper is town in Maryland, Liberia.

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 29°C through the month.

A typical January day in Harper reaches about 29°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292925
302925
312925

How January really feels in Harper

Once humidity and wind are folded in, January averages 17 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
17
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Harper weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°9519.611.84.5
Feb29° / 25°10820.811.93.9
Mar29° / 25°14826123.4
Apr29° / 25°15626.212.13.3
May28° / 25°29129.312.23.2
Jun27° / 24°28225.712.23.9
Jul26° / 24°13419.812.24.8
Aug26° / 23°12320.612.14.7
Sep27° / 24°24027.3123.7
Oct27° / 24°19729.211.93.6
Nov28° / 24°13826.311.83.6
Dec28° / 24°11624.411.84.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 31% of January, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36238
46337
56238
66238
76139
86139
96139
106040
116040
126040
135941
145941
155842
165842
175842
185941
195941
205941
215941
225941
235941
245941
255941
265941
275941
286040
296139
306139
316139

Chance of precipitation in January

Any precipitation

Harper gets around 95 mm of rain over 19.6 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 64% and peaks near 68% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
165
263
362
461
561
660
759
859
959
1059
1160
1260
1361
1461
1562
1663
1764
1864
1965
2066
2166
2267
2367
2468
2568
2668
2768
2867
2967
3067
3167

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
103898
203907
314887
414887
514887
615877
715868
815868
915868
1015859
1115859
12158410
13148510
14048610
15048511
16038611
17038611
18038512
19038512
20028513
21028414
22028315
23028216
24028117
25028018
26027919
27027820
28027622
29017623
30017425
31017326

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 48 min at the start of January to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 6:41 AM to 6:50 AM, and sunset from 6:27 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:416:27
211.86:426:27
311.86:426:27
411.86:436:28
511.86:436:28
611.86:446:29
711.86:446:29
811.86:446:30
911.86:456:30
1011.86:456:31
1111.86:456:31
1211.86:466:32
1311.86:466:32
1411.86:466:32
1511.86:476:33
1611.86:476:33
1711.86:476:34
1811.86:486:34
1911.86:486:34
2011.86:486:35
2111.86:486:35
2211.86:496:36
2311.86:496:36
2411.86:496:36
2511.86:496:37
2611.86:496:37
2711.86:496:37
2811.86:506:38
2911.86:506:38
3011.86:506:38
3111.86:506:38

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.82 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 5.22 kWh/m² in March across the year — January's 4.82 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in January

Hazard calendar for Harper

In seasonPeak

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

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

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

Is January a good time to visit Harper?

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

4.5
Sightseeing
3rd-best month of the year
5.5
Beach & pool
1st-best month of the year

January is a reasonable time to visit Harper for sightseeing.

What to pack for Harper in January

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

In January, Harper sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Harper in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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
Mar28Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Tropical
Dec28Tropical

UV index in Harper in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Harper peaks around April 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 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 14UV 13Jul 15UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr14Extreme
May12Extreme
Jun10Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec9Very high

Air quality in Harper 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 Harper is worst in January — around 41 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (September, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateJan 2040 µg/m³Sep 207 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb37Poor
Mar26Moderate
Apr31Moderate
May13Moderate
Jun13Moderate
Jul13Moderate
Aug9Good
Sep7Good
Oct8Good
Nov12Good
Dec29Moderate
Location & terrain

Where is Harper?

Harper sits at 4.4°N, 7.7°W, 14 m above sea level, in Liberia. The nearest listed city is Pleebo City, 24 km away.

TabouPetit Grabo

Topography around Harper

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

Within 3 km, the terrain around Harper has only modest variations in elevation — a maximum elevation change of 39 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, significant variations in elevation — a maximum elevation change of 405 m.

The land around Harper is covered by water (46%) and grassland (22%) within 3 km, water (53%) and trees (30%) within 16 km, and trees (56%) and water (41%) within 80 km.

3 km
39 m
16 km
80 m
80 km
405 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
January weather nearby: Pleebo City 24 km · Tabou 40 km · Gnépasso 99 km · Petit Grabo 108 km · Watté 120 km · San-Pédro 126 km · Dagadji 129 km · Gagny 130 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 Harper (4.3782°, -7.7108°, elevation 14 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).