Harper in Winter
In winter (December, January and February), Harper sees average daytime highs around 29°C and overnight lows near 24°C, with 318 mm of rain over about 65 wet days across the season. It is the 2nd-warmest season and the driest season of the year.
Across winter, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 23% of the time across winter, and the air most often feels oppressive.
Winter is Harper's 2nd-best season to visit on our travel score. Harper has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Harper's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 318 mm
- 65 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.1
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Harper in Winter
Across winter, daytime highs hold fairly steady around 29°C.
A typical winter day in Harper reaches about 29°C and drops to 24°C overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Harper
Once humidity and wind are folded in, winter brings about 45 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Harper weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 24° | 95 | 19.6 | 11.8 | 4.5 |
| Feb | 29° / 25° | 108 | 20.8 | 11.9 | 3.9 |
| Mar | 29° / 25° | 148 | 26 | 12 | 3.4 |
| Apr | 29° / 25° | 156 | 26.2 | 12.1 | 3.3 |
| May | 28° / 25° | 291 | 29.3 | 12.2 | 3.2 |
| Jun | 27° / 24° | 282 | 25.7 | 12.2 | 3.9 |
| Jul | 26° / 24° | 134 | 19.8 | 12.2 | 4.8 |
| Aug | 26° / 23° | 123 | 20.6 | 12.1 | 4.7 |
| Sep | 27° / 24° | 240 | 27.3 | 12 | 3.7 |
| Oct | 27° / 24° | 197 | 29.2 | 11.9 | 3.6 |
| Nov | 28° / 24° | 138 | 26.3 | 11.8 | 3.6 |
| Dec | 28° / 24° | 116 | 24.4 | 11.8 | 4.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 23% of the time across winter.
Chance of precipitation in Winter
Harper gets around 318 mm of rain over 65 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 8 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 48 min in early December to 11 h 54 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.8 kWh/m².
Hazard calendar for Harper
In winter, Harper overlaps its dust season. The full year is below, with each hazard's peak months called out.
Harper sees seasonal dust haze (February), heaviest in February.
Is winter a good time to visit Harper?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Harper for sightseeing.
What to pack for Harper in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Harper sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 65 days see rain.
Sea temperature near Harper in Winter
The nearest coast averages about 28°C across winter — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 28 | 29 | 29 | 28 | 27 | 26 | 26 | 27 | 28 | 28 |
| Comfort | Tropical | Warm | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Warm |
| Mar | 28 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Warm |
| Jul | 27 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Tropical |
| Dec | 28 | Tropical |
UV index in Harper in Winter
Clear-sky midday UV across winter averages 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 13 | 13 | 14 | 12 | 10 | 9 | 11 | 12 | 12 | 10 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 9 | Very high |
Air quality in Harper in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 41 | 37 | 26 | 31 | 13 | 13 | 13 | 9 | 7 | 8 | 12 | 29 |
| Level | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 41 | Poor |
| Feb | 37 | Poor |
| Mar | 26 | Moderate |
| Apr | 31 | Moderate |
| May | 13 | Moderate |
| Jun | 13 | Moderate |
| Jul | 13 | Moderate |
| Aug | 9 | Good |
| Sep | 7 | Good |
| Oct | 8 | Good |
| Nov | 12 | Good |
| Dec | 29 | Moderate |
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.
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.
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
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.