Goaso weather in September

In September, Goaso sees average daytime highs of 29°C and overnight lows near 23°C, with 119 mm of rain across 22.4 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 29°C through the month. The sky is clear or mostly clear about 1% 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 Goaso's 9th-clearest and 8th-windiest month. For the whole year in context, see Goaso's year-round climate.

Daytime high
29°
10th warmest
Overnight low
23°
6th coldest
Rainfall
119 mm
22.4 wet days
Daylight
12 hours
6:03 AM – 6:05 PM
Cloud cover
79%
9th clearest
Wind
7 km/h
8th windiest
Solar energy
4.05 kWh/m²
Travel score
3.7
out of 10

Goaso is capital of Ahafo Region, Ghana.

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 29°C through the month.

A typical September day in Goaso reaches about 29°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°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)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232923
242923
252923
263023
273023
283023
293023
303023

How September really feels in Goaso

Once humidity and wind are folded in, September averages 26 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
26
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Goaso 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
Jan33° / 23°163.511.63.9
Feb35° / 24°397.511.82.8
Mar34° / 24°8415.7122.6
Apr33° / 24°9717.112.12.8
May32° / 24°11320.712.33.0
Jun30° / 23°11921.412.43.5
Jul29° / 23°8818.212.44.3
Aug28° / 22°8516.812.24.5
Sep29° / 23°11922.4123.7
Oct30° / 23°10721.711.83.5
Nov31° / 23°4911.111.74.2
Dec32° / 22°174.111.64.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
31090
41090
51189
61189
71189
81288
91288
101288
111288
121387
131387
141387
151486
161486
171486
181585
191585
201585
211684
221684
231882
241882
251981
261981
272179
282179
292179
302278

Chance of precipitation in September

Any precipitation

Goaso gets around 119 mm of rain over 22.4 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 74% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
167
268
368
469
570
670
771
871
972
1072
1172
1273
1373
1473
1574
1674
1775
1875
1976
2076
2176
2277
2377
2477
2577
2677
2777
2877
2977
3077

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
11090
21090
3991
4991
5991
6991
7892
8892
9892
10892
11793
12793
13793
14694
15694
16694
17595
18595
19496
20496
21496
22397
23397
24397
25298
26298
27298
28298
29298
30199

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.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
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 6:06 AM to 6:01 AM, and sunset from 6:14 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:066:14
212.16:066:13
312.16:066:13
412.16:056:12
512.16:056:12
612.16:056:11
712.16:056:11
812.16:056:10
912.16:056:09
1012.16:046:09
1112.16:046:08
1212.16:046:08
1312.16:046:07
1412.06:046:07
1512.06:036:06
1612.06:036:05
1712.06:036:05
1812.06:036:04
1912.06:036:04
2012.06:036:03
2112.06:026:03
2212.06:026:02
2312.06:026:02
2412.06:026:01
2512.06:026:00
2612.06:026:00
2712.06:015:59
2812.06:015:59
2912.06:015:58
3011.96:015:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.05 kWh/m².

For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 5.38 kWh/m² in February across the year — September's 4.05 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Moderate
114.0Moderate
124.0Bright
134.0Bright
144.0Bright
154.0Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Goaso

In seasonPeak

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

Goaso sees seasonal dust haze (January–April), heaviest in February.

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

Is September a good time to visit Goaso?

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

3.7
Sightseeing
6th-best month of the year
4.8
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Goaso.

What to pack for Goaso in September

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

In September, Goaso sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 22 days see rain.

light clothesrain gear

UV index in Goaso 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 Goaso peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 9 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 13UV 13Jan 9UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Goaso 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 Goaso is worst in February — around 94 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (August, 19 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyFeb 1092 µg/m³Aug 1719 µg/m³
PM2.5 (µg/m³)Level
Jan84Unhealthy
Feb94Unhealthy
Mar42Poor
Apr39Poor
May24Moderate
Jun21Moderate
Jul20Moderate
Aug19Moderate
Sep20Moderate
Oct26Moderate
Nov35Moderate
Dec72Unhealthy
Location & terrain

Where is Goaso?

Goaso sits at 6.8°N, 2.5°W, 201 m above sea level, in Ghana. The nearest listed city is Mim, 12 km away.

AtronieTepaBibianiDuayaw-NkwantaBechemSunyaniDomaa-Ahenkro

Topography around Goaso

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

Within 3 km, the terrain around Goaso has only modest variations in elevation — a maximum elevation change of 105 m around an average of 200 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 155 m; within 80 km, large variations in elevation — a maximum elevation change of 738 m.

The land around Goaso is covered by trees (61%) and artificial surfaces (20%) within 3 km, trees (86%) within 16 km, and trees (90%) within 80 km.

3 km
105 m
16 km
155 m
80 km
738 m
treesshrubsgrasslandartificial surfaces
September weather nearby: Mim 12 km · Atronie 41 km · Tepa 45 km · Bibiani 45 km · Duayaw-Nkwanta 62 km · Bechem 63 km · Sunyani 63 km · Domaa-Ahenkro 65 km

Ghana travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$3,257
2025
Happiness
4.6 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
1.8
per 100k, 2022
Road deaths
25.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 540
Religion
Christian 71%Muslim 20%other 5%traditionalist 3%

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 Goaso (6.8036°, -2.5172°, elevation 201 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).