Buchanan weather in September

In September, Buchanan sees average daytime highs of 27°C and overnight lows near 23°C, with 403 mm of rain across 29.3 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 27°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 12 hours by month's end. Set against the rest of the year, September is Buchanan's 11th-clearest and 3rd-windiest month. For the whole year in context, see Buchanan's year-round climate.

Daytime high
27°
10th warmest
Overnight low
23°
3rd coldest
Rainfall
403 mm
29.3 wet days
Daylight
12 hours
6:34 AM – 6:35 PM
Cloud cover
86%
11th clearest
Wind
8 km/h
3rd windiest
Solar energy
3.75 kWh/m²
Travel score
3.3
out of 10

Buchanan is human settlement in Grand Bassa County, Liberia.

Founded
1835

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 27°C through the month.

A typical September day in Buchanan reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122723
132723
142723
152723
162723
172723
182723
192723
202723
212723
222723
232723
242823
252823
262823
272823
282823
292823
302823

How September really feels in Buchanan

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.

Buchanan 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
Jan29° / 24°7617.411.74.6
Feb29° / 24°10520.811.83.8
Mar29° / 24°16727.3123.2
Apr29° / 24°20727.612.13.0
May29° / 24°28430.112.32.9
Jun28° / 24°36229.312.33.3
Jul27° / 23°3002712.33.8
Aug27° / 23°39026.912.23.8
Sep27° / 23°40329.3123.3
Oct28° / 23°30530.511.93.2
Nov29° / 23°16626.911.73.3
Dec29° / 23°8821.311.74.2

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 4% of September, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1397
2397
3397
4496
5496
6496
7496
8496
9496
10496
11496
12496
13496
14496
15496
16496
17496
18595
19595
20595
21595
22595
23595
24595
25595
26595
27595
28694
29694
30694

Chance of precipitation in September

Any precipitation

Buchanan gets around 403 mm of rain over 29.3 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 98% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
296
396
496
596
697
797
897
997
1097
1197
1298
1398
1498
1598
1698
1798
1898
1998
2098
2198
2299
2399
2499
2599
2699
2799
2899
2999
3099

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11990
21990
31990
41990
501000
60991
70991
80991
90991
100991
110991
120991
130991
140991
150982
160982
170982
180982
190982
200982
210982
220973
230973
240973
250973
260973
270964
280964
290964
300964

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 6 minutes over September. Sunrise moves from 6:37 AM to 6:31 AM, and sunset from 6:43 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:376:43
212.16:366:43
312.16:366:42
412.16:366:42
512.16:366:41
612.16:366:41
712.16:356:40
812.16:356:40
912.16:356:39
1012.16:356:39
1112.16:356:38
1212.16:346:38
1312.06:346:37
1412.06:346:37
1512.06:346:36
1612.06:346:35
1712.06:336:35
1812.06:336:34
1912.06:336:34
2012.06:336:33
2112.06:336:33
2212.06:326:32
2312.06:326:32
2412.06:326:31
2512.06:326:31
2612.06:326:30
2712.06:316:30
2812.06:316:29
2912.06:316:29
3012.06:316:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.75 kWh/m².

For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 4.9 kWh/m² in March across the year — September's 3.75 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
254.0Moderate
264.0Moderate
274.0Moderate
284.0Bright
294.0Bright
304.0Bright
Planning a trip in September

Hazard calendar for Buchanan

In seasonPeak

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

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

Buchanan sees seasonal dust haze (February), heaviest in February.

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

Is September a good time to visit Buchanan?

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

3.3
Sightseeing
6th-best month of the year
3.5
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Buchanan.

What to pack for Buchanan in September

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

In September, Buchanan sees daytime highs around 27°C and nights near 23°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

Sea temperature near Buchanan in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 29°C and coldest in August near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug27Warm
Sep27Warm
Oct28Warm
Nov28Tropical
Dec29Tropical

UV index in Buchanan 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 Buchanan peaks around March 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 15UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr12Extreme
May13Extreme
Jun11Extreme
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Buchanan 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 Buchanan is worst in April — around 58 µg/m³ PM2.5 (unhealthy), about 7.1× the cleanest month (September, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyModerateGoodModerateApr 957 µg/m³Sep 138 µg/m³
PM2.5 (µg/m³)Level
Jan46Poor
Feb53Poor
Mar56Unhealthy
Apr58Unhealthy
May22Moderate
Jun14Moderate
Jul12Moderate
Aug9Good
Sep8Good
Oct11Good
Nov17Moderate
Dec35Moderate
Location & terrain

Where is Buchanan?

Buchanan sits at 5.9°N, 10.0°W, 11 m above sea level, in Liberia. The nearest listed city is Harbel, 53 km away.

HarbelKakataMonroviaTubmanburgGbarngaGreenvilleSaclepeaGanta

Topography around Buchanan

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

Within 3 km, the terrain around Buchanan has only modest variations in elevation — a maximum elevation change of 18 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, large variations in elevation — a maximum elevation change of 610 m.

The land around Buchanan is covered by water (42%) and grassland (27%) within 3 km, water (50%) and trees (38%) within 16 km, and trees (64%) and water (33%) within 80 km.

3 km
18 m
16 km
92 m
80 km
610 m
treesgrasslandartificial surfaceswatermangroves
September weather nearby: Harbel 53 km · Kakata 80 km · Monrovia 95 km · Tubmanburg 140 km · Gbarnga 140 km · Greenville 148 km · Saclepea 180 km · Ganta 191 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 Buchanan (5.8769°, -10.0496°, elevation 11 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).