Oyem in Winter
In winter (December, January and February), Oyem sees average daytime highs around 29°C and overnight lows near 20°C, with 312 mm of rain over about 54 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 3% of the time across winter, and the air most often feels muggy.
Winter is Oyem's 2nd-best season to visit on our travel score. Oyem 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 Oyem's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 312 mm
- 54 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.1
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Oyem in Winter
Across winter, daytime highs hold fairly steady around 29°C.
A typical winter day in Oyem reaches about 29°C and drops to 20°C overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Oyem
Once humidity and wind are folded in, winter brings about 4 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.
Oyem 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° / 20° | 85 | 16.4 | 11.9 | 4.3 |
| Feb | 30° / 20° | 112 | 17.1 | 11.9 | 3.9 |
| Mar | 30° / 20° | 200 | 25.5 | 12 | 3.2 |
| Apr | 30° / 21° | 226 | 26.4 | 12 | 3.0 |
| May | 29° / 21° | 185 | 26.9 | 12.1 | 3.3 |
| Jun | 28° / 20° | 143 | 22.7 | 12.1 | 4.2 |
| Jul | 27° / 20° | 119 | 20.4 | 12.1 | 4.7 |
| Aug | 27° / 20° | 117 | 20.6 | 12.1 | 4.6 |
| Sep | 28° / 20° | 223 | 27.2 | 12 | 3.6 |
| Oct | 28° / 20° | 261 | 29.1 | 12 | 3.4 |
| Nov | 28° / 20° | 232 | 27.3 | 11.9 | 3.4 |
| Dec | 29° / 20° | 116 | 20.4 | 11.9 | 4.1 |
Cloud cover in Winter
The sky is clear or mostly clear about 3% of the time across winter.
Chance of precipitation in Winter
Oyem gets around 312 mm of rain over 54 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 6 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 54 min in early December to 12 hours 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 4.6 kWh/m².
Is winter a good time to visit Oyem?
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 Oyem for sightseeing.
What to pack for Oyem in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Oyem sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 54 days see rain.
UV index in Oyem 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 Oyem peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 | 12 | 14 | 13 | 12 | 10 | 10 | 11 | 13 | 14 | 11 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 11 | Extreme |
| Dec | 9 | Very high |
Air quality in Oyem 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 Oyem is worst in February — around 48 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (October, 9 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) | 37 | 48 | 29 | 20 | 15 | 19 | 20 | 16 | 9 | 9 | 15 | 30 |
| Level | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 37 | Poor |
| Feb | 48 | Poor |
| Mar | 29 | Moderate |
| Apr | 20 | Moderate |
| May | 15 | Moderate |
| Jun | 19 | Moderate |
| Jul | 20 | Moderate |
| Aug | 16 | Moderate |
| Sep | 9 | Good |
| Oct | 9 | Good |
| Nov | 15 | Moderate |
| Dec | 30 | Moderate |
Where is Oyem?
Oyem sits at 1.6°N, 11.6°E, 656 m above sea level, in Gabon. The nearest listed city is Bitam, 54 km away.
Topography around Oyem
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oyem.
Within 3 km, the terrain around Oyem has only modest variations in elevation — a maximum elevation change of 103 m around an average of 654 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 244 m; within 80 km, significant variations in elevation — a maximum elevation change of 569 m.
The land around Oyem is covered by trees (63%) and artificial surfaces (23%) within 3 km, trees (97%) within 16 km, and trees (100%) within 80 km.
Gabon travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 37% of US
- price level, 2025
- GDP per capita
- $8,263
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Road deaths
- 23.9
- per 100k/yr, 2019
- Income group
- Upper middle
- 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 Oyem (1.5995°, 11.5793°, elevation 656 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.