Gbarnga weather in September

In September, Gbarnga sees average daytime highs of 28°C and overnight lows near 22°C, with 309 mm of rain across 28.1 wet days and about 12 hours of daylight. It is the 10th-warmest and 1st-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 September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Gbarnga's 8th-clearest and 5th-windiest month. For the whole year in context, see Gbarnga's year-round climate.

Daytime high
28°
10th warmest
Overnight low
22°
6th coldest
Rainfall
309 mm
28.1 wet days
Daylight
12 hours
6:31 AM – 6:33 PM
Cloud cover
83%
8th clearest
Wind
7 km/h
5th windiest
Solar energy
3.97 kWh/m²
Travel score
3.3
out of 10

Gbarnga is city in Liberia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Gbarnga 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 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12722
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272922
282922
292922
302922

How September really feels in Gbarnga

Once humidity and wind are folded in, September 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

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

Gbarnga weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°235.511.64.9
Feb32° / 23°458.911.83.9
Mar31° / 23°9717.7123.4
Apr31° / 23°13321.312.13.2
May30° / 23°19025.812.33.1
Jun29° / 22°22026.812.43.4
Jul27° / 22°19025.612.43.9
Aug27° / 22°24626.312.23.8
Sep28° / 22°30928.1123.3
Oct29° / 22°17927.311.83.3
Nov29° / 22°7117.711.74.2
Dec30° / 22°266.411.65.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1694
2793
3793
4793
5892
6892
7892
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
201090
211189
221189
231288
241288
251288
261387
271387
281486
291486
301486

Chance of precipitation in September

Any precipitation

Gbarnga gets around 309 mm of rain over 28.1 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 93% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
494
594
694
795
895
995
1095
1195
1294
1394
1494
1594
1694
1794
1894
1994
2093
2193
2293
2393
2492
2592
2692
2792
2891
2991
3091

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1991
2892
3892
4793
5793
6694
7694
8694
9595
10595
11595
12595
13496
14496
15496
16496
17496
18397
19397
20397
21397
22298
23298
24298
25298
26298
27298
28298
29298
30298

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over September. Sunrise moves from 6:34 AM to 6:29 AM, and sunset from 6:42 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:346:42
212.16:336:41
312.16:336:41
412.16:336:40
512.16:336:40
612.16:336:39
712.16:336:38
812.16:326:38
912.16:326:37
1012.16:326:37
1112.16:326:36
1212.16:326:36
1312.16:326:35
1412.16:316:34
1512.06:316:34
1612.06:316:33
1712.06:316:33
1812.06:316:32
1912.06:316:32
2012.06:306:31
2112.06:306:31
2212.06:306:30
2312.06:306:29
2412.06:306:29
2512.06:306:28
2612.06:296:28
2712.06:296:27
2812.06:296:27
2912.06:296:26
3011.96:296:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.97 kWh/m².

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 5.03 kWh/m² in February across the year — September's 3.97 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
154.0Moderate
164.0Moderate
174.0Bright
184.0Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Gbarnga

In seasonPeak

In September, Gbarnga sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Gbarnga's rainy season runs May–October, when most of the year's rain falls.

Gbarnga sees seasonal dust haze (April), heaviest in April.

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

Is September a good time to visit Gbarnga?

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

3.3
Sightseeing
9th-best month of the year
3.8
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Gbarnga.

What to pack for Gbarnga in September

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

In September, Gbarnga sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Gbarnga in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gbarnga peaks around March 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highMar 16UV 13Dec 16UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Gbarnga in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Gbarnga is worst in April — around 89 µg/m³ PM2.5 (unhealthy), about 8.9× the cleanest month (September, 10 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyModerateGoodModerateApr 1385 µg/m³Sep 910 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb55Poor
Mar65Unhealthy
Apr89Unhealthy
May36Poor
Jun16Moderate
Jul13Moderate
Aug10Good
Sep10Good
Oct14Moderate
Nov21Moderate
Dec38Poor
Location & terrain

Where is Gbarnga?

Gbarnga sits at 7.0°N, 9.5°W, 253 m above sea level, in Liberia. The nearest listed city is Ganta, 60 km away.

GantaSaclepeaSanniquellieKakataNzérékoréNew YekepaHarbelLola

Topography around Gbarnga

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

Within 3 km, the terrain around Gbarnga has only modest variations in elevation — a maximum elevation change of 66 m around an average of 245 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 346 m; within 80 km, large variations in elevation — a maximum elevation change of 705 m.

The land around Gbarnga is covered by trees (52%) and artificial surfaces (24%) within 3 km, trees (78%) within 16 km, and trees (97%) within 80 km.

3 km
66 m
16 km
346 m
80 km
705 m
treesshrubsgrasslandartificial surfaces
September weather nearby: Ganta 60 km · Saclepea 70 km · Sanniquellie 93 km · Kakata 110 km · Nzérékoré 111 km · New Yekepa 122 km · Harbel 128 km · Lola 137 km

Liberia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 0% of US
price level, 2025
GDP per capita
$915
2025
Happiness
4.3 / 10
World Happiness, 2025
Homicide rate
3.1
per 100k, 2012
Road deaths
38.9
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Christian 85%Muslim 12%none 3%Traditional 1%

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 Gbarnga (6.9954°, -9.4712°, elevation 253 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).