Oyem in Fall
In fall (September, October and November), Oyem sees average daytime highs around 28°C and overnight lows near 20°C, with 716 mm of rain over about 84 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 0% of the time across fall, and the air most often feels muggy.
Fall is Oyem's 3rd-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
- 28°C
- 3rd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 716 mm
- 84 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Oyem in Fall
Across fall, daytime highs hold fairly steady around 28°C.
A typical fall day in Oyem reaches about 28°C and drops to 20°C overnight. The warmest of the three months is November, the coolest September.
How fall really feels in Oyem
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Oyem weather by month
How the three fall months (September, October and November) 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 Fall
The sky is clear or mostly clear about 0% of the time across fall.
Chance of precipitation in Fall
Oyem gets around 716 mm of rain over 84 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 5 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 hours in early September to 11 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².
Is fall a good time to visit Oyem?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Oyem.
What to pack for Oyem in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Oyem sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. About 84 days see rain.
UV index in Oyem in Fall
Clear-sky midday UV across fall averages around 12 (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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.