Port-Gentil weather in August

In August, Port-Gentil sees average daytime highs of 24°C and overnight lows near 23°C, with 7 mm of rain across 2.2 wet days and about 12 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 20% 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 Port-Gentil's 3rd-clearest and 1st-windiest month. For the whole year in context, see Port-Gentil's year-round climate.

Daytime high
24°
11th warmest
Overnight low
23°
2nd coldest
Rainfall
7 mm
2.2 wet days
Daylight
12 hours
6:30 AM – 6:28 PM
Cloud cover
63%
3rd clearest
Wind
19 km/h
1st windiest
Solar energy
4.76 kWh/m²
Travel score
8.0
out of 10

Port-Gentil is city in 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 24°C through the month.

A typical August day in Port-Gentil reaches about 24°C in the afternoon and slips back to 23°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 25°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12423
22423
32423
42423
52423
62423
72423
82423
92423
102423
112423
122423
132423
142423
152423
162423
172423
182423
192423
202523
212523
222524
232524
242524
252524
262524
272524
282524
292524
302524
312524

How August really feels in Port-Gentil

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.

Port-Gentil weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°23027.4123.8
Feb28° / 26°16922.7123.9
Mar28° / 26°17624123.8
Apr28° / 26°16122124.1
May27° / 25°11017.3125.3
Jun25° / 24°183.8127.6
Jul24° / 23°82.2128.1
Aug24° / 23°72.2128.0
Sep25° / 24°348.6126.7
Oct26° / 25°14723.2124.5
Nov27° / 25°27528123.6
Dec27° / 25°26228.4123.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 25% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
35050
45050
55050
65050
74951
84951
94852
104852
114852
124852
134753
144654
154555
164555
174456
184357
194357
204357
214258
224258
234258
244258
254258
264258
274258
284258
294159
304258
314258

Chance of precipitation in August

Any precipitation

Port-Gentil gets around 7 mm of rain over 2.2 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
43
53
64
74
85
95
105
116
126
137
147
158
168
178
189
199
209
219
229
2310
2410
2510
2610
2710
2810
2910
3011
3111

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
17525
27426
37426
47228
57129
67030
76832
86733
96535
106436
116238
126139
135941
145842
155644
165545
175347
185248
195149
204951
214852
224753
234555
244456
254258
264060
273862
283565
293367
303169
312971

Wind in August

Winds average 19 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 19 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

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 6:32 AM to 6:25 AM, and sunset from 6:30 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:326:30
212.06:326:30
312.06:326:30
412.06:326:30
512.06:326:30
612.06:316:30
712.06:316:30
812.06:316:29
912.06:316:29
1012.06:316:29
1112.06:316:29
1212.06:306:29
1312.06:306:29
1412.06:306:29
1512.06:306:28
1612.06:306:28
1712.06:296:28
1812.06:296:28
1912.06:296:28
2012.06:296:27
2112.06:286:27
2212.06:286:27
2312.06:286:27
2412.06:286:26
2512.06:276:26
2612.06:276:26
2712.06:276:26
2812.06:266:25
2912.06:266:25
3012.06:266:25
3112.06:256:24

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.76 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 5.13 kWh/m² in March across the year — August's 4.76 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Port-Gentil

In seasonPeak

None of Port-Gentil's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Port-Gentil's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Port-Gentil?

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

8.0
Sightseeing
2nd-best month of the year
7.0
Beach & pool
1st-best month of the year

August is one of the better times to visit Port-Gentil for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Port-Gentil in August

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

In August, Port-Gentil sees daytime highs around 24°C and nights near 23°C. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Port-Gentil in August

The nearest coast averages about 25°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in March at about 29°C and coldest in July near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Warm
Jun26Warm
Jul25Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Port-Gentil in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port-Gentil peaks around March 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 8 (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 19UV 8
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar14Extreme
Apr13Extreme
May11Extreme
Jun8Very high
Jul9Very high
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Port-Gentil 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 Port-Gentil is worst in February — around 25 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 1224 µg/m³Oct 178 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb25Moderate
Mar18Moderate
Apr14Moderate
May16Moderate
Jun21Moderate
Jul21Moderate
Aug18Moderate
Sep11Good
Oct8Good
Nov11Good
Dec17Moderate
Location & terrain

Where is Port-Gentil?

Port-Gentil sits at 0.7°S, 8.8°E, 4 m above sea level, in Gabon. The nearest listed city is Owendo, 138 km away.

OwendoLibrevilleAkandaLambarénéNtoumOyamMouila

Topography around Port-Gentil

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

Within 3 km, the terrain around Port-Gentil has only modest variations in elevation — a maximum elevation change of 9 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 41 m; within 80 km, only modest variations in elevation — a maximum elevation change of 236 m.

The land around Port-Gentil is covered by artificial surfaces (50%) and water (38%) within 3 km, water (77%) within 16 km, and water (60%) and trees (28%) within 80 km.

3 km
9 m
16 km
41 m
80 km
236 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Owendo 138 km · Libreville 144 km · Akanda 160 km · Lambaréné 162 km · Ntoum 165 km · Oyam 219 km · São Tomé 257 km · Mouila 283 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 Port-Gentil (-0.7193°, 8.7815°, elevation 4 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).