Oyam weather in January

In January, Oyam sees average daytime highs of 31°C and overnight lows near 23°C, with 165 mm of rain across 26.2 wet days and about 12 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 1% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of January to 12 hours by month's end. Set against the rest of the year, January is Oyam's 4th-clearest and 7th-windiest month. For the whole year in context, see Oyam's year-round climate.

Daytime high
31°
4th warmest
Overnight low
23°
8th coldest
Rainfall
165 mm
26.2 wet days
Daylight
12 hours
6:26 AM – 6:27 PM
Cloud cover
81%
4th clearest
Wind
5 km/h
7th windiest
Solar energy
4.5 kWh/m²
Travel score
2.8
out of 10

Oyam is place in Moyen-Ogooué Province, Gabon.

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 31°C through the month.

A typical January day in Oyam reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How January really feels in Oyam

Once humidity and wind are folded in, January averages 31 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
31
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.

Oyam weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°16526.2122.8
Feb31° / 23°15723.9122.6
Mar31° / 23°22227.5122.5
Apr31° / 23°22026.5122.6
May31° / 23°19327122.8
Jun29° / 22°5911.8125.2
Jul27° / 21°225.8126.5
Aug28° / 22°266.9126.2
Sep29° / 22°10419.9123.9
Oct30° / 23°25529.3122.7
Nov30° / 23°29329.3122.6
Dec30° / 23°22328.4122.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 87%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11387
21387
31387
41486
51486
61486
71486
81486
91486
101486
111486
121387
131387
141387
151288
161288
171288
181288
191288
201288
211288
221387
231387
241387
251387
261387
271486
281486
291486
301585
311585

Chance of precipitation in January

Any precipitation

Oyam gets around 165 mm of rain over 26.2 wet days in January. 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 86% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
386
485
585
685
785
885
985
1085
1185
1285
1385
1485
1585
1685
1785
1885
1985
2085
2185
2285
2385
2485
2585
2685
2785
2885
2985
3085
3185

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
19010
29010
39010
48911
58911
68911
78911
88812
98812
108812
118812
128812
138713
148713
158713
168713
178713
188713
198713
208614
218614
228614
238515
248515
258416
268317
278317
288218
298119
308119
318020

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 hours at the start of January to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 6:20 AM to 6:30 AM, and sunset from 6:21 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:206:21
212.06:216:21
312.06:216:22
412.06:216:22
512.06:226:23
612.06:226:23
712.06:236:23
812.06:236:24
912.06:246:24
1012.06:246:25
1112.06:246:25
1212.06:256:25
1312.06:256:26
1412.06:266:26
1512.06:266:27
1612.06:266:27
1712.06:276:27
1812.06:276:28
1912.06:276:28
2012.06:286:28
2112.06:286:28
2212.06:286:29
2312.06:286:29
2412.06:296:29
2512.06:296:30
2612.06:296:30
2712.06:296:30
2812.06:306:30
2912.06:306:30
3012.06:306:31
3112.06:306:31

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.5 kWh/m².

For context, solar energy here swings from a low near 3.22 kWh/m² to a high of 4.88 kWh/m² in March across the year — January's 4.5 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in January

Is January a good time to visit Oyam?

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

2.8
Sightseeing
5th-best month of the year
4.1
Beach & pool
6th-best month of the year

January is a weaker month for outdoor sightseeing in Oyam.

What to pack for Oyam in January

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

In January, Oyam sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Oyam in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks 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 Oyam peaks around March 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 highExtremeMar 20UV 14Jun 21UV 9
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar14Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec10Very high

Air quality in Oyam 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 Oyam is worst in February — around 41 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (October, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1340 µg/m³Oct 1418 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb41Poor
Mar31Moderate
Apr26Moderate
May26Moderate
Jun32Moderate
Jul31Moderate
Aug26Moderate
Sep20Moderate
Oct18Moderate
Nov22Moderate
Dec30Moderate
Location & terrain

Where is Oyam?

Oyam sits at 0.2°S, 10.7°E, 72 m above sea level, in Gabon. The nearest listed city is Lambaréné, 74 km away.

LambarénéNtoumOwendoLibrevilleAkandaMouilaCiudad de la PazPort-Gentil

Topography around Oyam

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

Within 3 km, the terrain around Oyam has significant variations in elevation — a maximum elevation change of 283 m around an average of 116 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 442 m; within 80 km, large variations in elevation — a maximum elevation change of 1,018 m.

The land around Oyam is covered by trees (97%) within 3 km, trees (97%) within 16 km, and trees (99%) within 80 km.

3 km
283 m
16 km
442 m
80 km
1,018 m
treesbare terrainwater
January weather nearby: Lambaréné 74 km · Ntoum 122 km · Owendo 142 km · Libreville 152 km · Akanda 175 km · Mouila 190 km · Ciudad de la Paz 200 km · Port-Gentil 219 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
Protestant 46%Roman Catholic 30%Muslim 11%none 7%

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 Oyam (-0.2°, 10.6833°, elevation 72 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. 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).