Oyam weather in August

In August, Oyam sees average daytime highs of 28°C and overnight lows near 22°C, with 26 mm of rain across 6.9 wet days and about 12 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 0% of the time in August, and the air most often feels muggy.

Daylight stretches from about 12 hours at the start of August to 12 hours by month's end. Set against the rest of the year, August is Oyam's 12th-clearest and 1st-windiest month. For the whole year in context, see Oyam's year-round climate.

Daytime high
28°
11th warmest
Overnight low
22°
2nd coldest
Rainfall
26 mm
6.9 wet days
Daylight
12 hours
6:22 AM – 6:21 PM
Cloud cover
89%
12th clearest
Wind
7 km/h
1st windiest
Solar energy
3.25 kWh/m²
Travel score
6.2
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Oyam reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, August runs on par with July and about 2°C cooler than September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102721
112721
122721
132722
142722
152722
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

How August really feels in Oyam

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Oyam weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 11th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in August, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of August, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21298
22298
23298
24298
25298
26298
27298
28397
29397
30397
31397

Chance of precipitation in August

Any precipitation

Oyam gets around 26 mm of rain over 6.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
112
212
312
413
513
613
714
815
915
1016
1116
1217
1318
1419
1520
1621
1722
1823
1924
2025
2127
2228
2329
2430
2531
2632
2733
2834
2935
3036
3137

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
128018
228018
328018
427919
527919
627820
727721
827622
927523
1027424
1127325
1227127
1327028
1426929
1516831
1616732
1716633
1816435
1916336
2016138
2116039
2215841
2305842
2405644
2505545
2605347
2705149
2804951
2904753
3004555
3104357

Wind in August

Winds average 7 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

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

Days grow by about 0 minutes over August. Sunrise moves from 6:24 AM to 6:17 AM, and sunset from 6:23 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:246:23
212.06:246:23
312.06:236:23
412.06:236:23
512.06:236:23
612.06:236:23
712.06:236:23
812.06:236:22
912.06:236:22
1012.06:236:22
1112.06:226:22
1212.06:226:22
1312.06:226:22
1412.06:226:22
1512.06:226:21
1612.06:226:21
1712.06:216:21
1812.06:216:21
1912.06:216:21
2012.06:216:20
2112.06:206:20
2212.06:206:20
2312.06:206:20
2412.06:206:19
2512.06:196:19
2612.06:196:19
2712.06:196:18
2812.06:186:18
2912.06:186:18
3012.06:186:17
3112.06:176:17

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.25 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 — August's 3.25 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.2Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.5Moderate
Planning a trip in August

Is August a good time to visit Oyam?

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

6.2
Sightseeing
2nd-best month of the year
6.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Oyam for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Oyam in August

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

In August, Oyam sees daytime highs around 28°C and nights near 22°C. Pack light clothes. About 7 days see rain.

light clothes

UV index in Oyam in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).