Obuasi weather in September

In September, Obuasi sees average daytime highs of 29°C and overnight lows near 23°C, with 136 mm of rain across 24.6 wet days and about 12 hours of daylight. It is the 10th-warmest and 4th-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 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 Obuasi's 9th-clearest and 6th-windiest month. For the whole year in context, see Obuasi's year-round climate.

Daytime high: 29°; 10th warmest
Overnight low: 23°; 6th coldest
Rainfall: 136 mm; 24.6 wet days
Daylight: 12 hours; 6:00 AM – 6:02 PM
Cloud cover: 81%; 9th clearest
Wind: 7 km/h; 6th windiest
Solar energy: 4.09 kWh/m²
Travel score: 3.5; out of 10

Obuasi is A city in Ghana, Ashanti Region..

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

← August Obuasi year-round climate October →Best places to visit in September

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

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 Obuasi reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

	Avg high (°C)	Avg low (°C)
1	29	23
2	29	23
3	29	23
4	29	23
5	29	23
6	29	23
7	29	23
8	29	23
9	29	23
10	29	23
11	29	23
12	29	23
13	29	23
14	29	23
15	29	23
16	29	23
17	29	23
18	29	23
19	29	23
20	29	23
21	29	23
22	29	23
23	29	23
24	29	23
25	29	23
26	29	23
27	29	23
28	29	23
29	29	23
30	29	23

How September really feels in Obuasi

Once humidity and wind are folded in, September averages 17 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Obuasi weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 23°	22	5.2	11.7	4.4
Feb	34° / 24°	44	9.1	11.8	3.2
Mar	33° / 24°	100	17.8	12	2.8
Apr	32° / 24°	103	19.4	12.1	2.9
May	31° / 23°	142	23.2	12.3	3.0
Jun	29° / 23°	157	24.3	12.4	3.4
Jul	28° / 22°	121	21.3	12.3	4.2
Aug	28° / 22°	93	19.5	12.2	4.4
Sep	29° / 23°	136	24.6	12	3.5
Oct	30° / 23°	151	24.9	11.9	3.3
Nov	31° / 23°	68	15.1	11.7	4.0
Dec	31° / 22°	25	6.5	11.6	4.9

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 9% of September, with mostly cloudy or overcast conditions the remaining 90%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	6	6	6	6	7	7	7	8	8	9	9	9	10	10	10	10	10	10	10	10	10	10	12	12	12	12	12	14	14	14
Cloudier (%)	94	94	94	94	93	93	93	92	92	91	91	91	90	90	90	90	90	90	90	90	90	90	88	88	88	88	88	86	86	86

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	7	93
8	8	92
9	8	92
10	9	91
11	9	91
12	9	91
13	10	90
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	10	90
23	12	88
24	12	88
25	12	88
26	12	88
27	12	88
28	14	86
29	14	86
30	14	86

Chance of precipitation in September

Any precipitation

Obuasi gets around 136 mm of rain over 24.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 86% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	75	75	76	77	78	78	79	79	79	79	79	79	80	80	80	81	81	82	82	83	83	83	84	84	85	85	85	86	86	86

	Rain chance (%)
1	75
2	75
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	79
11	79
12	79
13	80
14	80
15	80
16	81
17	81
18	82
19	82
20	83
21	83
22	83
23	84
24	84
25	85
26	85
27	85
28	86
29	86
30	86

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Muggy (%)	8	8	7	7	7	7	7	6	6	6	6	6	6	6	5	5	5	5	4	4	4	3	3	3	2	2	2	2	2	1
Oppressive (%)	92	92	93	93	93	93	93	94	94	94	94	94	94	94	95	95	95	95	96	96	96	97	97	97	98	98	98	98	98	99

	Muggy (%)	Oppressive (%)
1	8	92
2	8	92
3	7	93
4	7	93
5	7	93
6	7	93
7	7	93
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	6	94
15	5	95
16	5	95
17	5	95
18	5	95
19	4	96
20	4	96
21	4	96
22	3	97
23	3	97
24	3	97
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	1	99

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	8	8	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm

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 6:03 AM to 5:57 AM, and sunset from 6:10 PM to 5:55 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:03	6:03	6:02	6:02	6:02	6:02	6:02	6:02	6:01	6:01	6:01	6:01	6:01	6:00	6:00	6:00	6:00	6:00	5:59	5:59	5:59	5:59	5:59	5:58	5:58	5:58	5:58	5:58	5:58	5:57
Sunset (PM)	6:10	6:09	6:09	6:08	6:08	6:07	6:07	6:06	6:06	6:05	6:05	6:04	6:04	6:03	6:03	6:02	6:01	6:01	6:00	6:00	5:59	5:59	5:58	5:58	5:57	5:57	5:56	5:56	5:55	5:55

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:03	6:10
2	12.1	6:03	6:09
3	12.1	6:02	6:09
4	12.1	6:02	6:08
5	12.1	6:02	6:08
6	12.1	6:02	6:07
7	12.1	6:02	6:07
8	12.1	6:02	6:06
9	12.1	6:01	6:06
10	12.1	6:01	6:05
11	12.1	6:01	6:05
12	12.1	6:01	6:04
13	12.1	6:01	6:04
14	12.0	6:00	6:03
15	12.0	6:00	6:03
16	12.0	6:00	6:02
17	12.0	6:00	6:01
18	12.0	6:00	6:01
19	12.0	5:59	6:00
20	12.0	5:59	6:00
21	12.0	5:59	5:59
22	12.0	5:59	5:59
23	12.0	5:59	5:58
24	12.0	5:58	5:58
25	12.0	5:58	5:57
26	12.0	5:58	5:57
27	12.0	5:58	5:56
28	12.0	5:58	5:56
29	12.0	5:58	5:55
30	12.0	5:57	5:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.09 kWh/m².

For context, solar energy here swings from a low near 3.78 kWh/m² to a high of 5.29 kWh/m² in February across the year — September's 4.09 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.1	4.1	4.1	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.9	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	3.9	Moderate
5	4.0	Moderate
6	4.0	Moderate
7	4.0	Moderate
8	4.0	Moderate
9	4.0	Bright
10	4.0	Bright
11	4.0	Bright
12	4.0	Bright
13	4.0	Bright
14	4.1	Bright
15	4.1	Bright
16	4.1	Bright
17	4.1	Bright
18	4.1	Bright
19	4.1	Bright
20	4.2	Bright
21	4.2	Bright
22	4.2	Bright
23	4.2	Bright
24	4.2	Bright
25	4.2	Bright
26	4.2	Bright
27	4.3	Bright
28	4.3	Bright
29	4.3	Bright
30	4.3	Bright

Planning a trip in September

Hazard calendar for Obuasi

In seasonPeak

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

Obuasi 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 Obuasi?

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

3.5

Sightseeing

6th-best month of the year

4.4

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Obuasi.

What to pack for Obuasi in September

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

In September, Obuasi sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

UV index in Obuasi 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 Obuasi peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	9	11	12	13	11	11	10	11	13	12	9	8
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	11	Extreme
Mar	12	Extreme
Apr	13	Extreme
May	11	Extreme
Jun	11	Extreme
Jul	10	Extreme
Aug	11	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	9	Very high
Dec	8	Very high

Air quality in Obuasi 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 Obuasi is worst in January — around 79 µg/m³ PM2.5 (unhealthy), about 4.4× the cleanest month (August, 18 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	79	72	42	39	24	22	20	18	18	24	34	67
Level	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	79	Unhealthy
Feb	72	Unhealthy
Mar	42	Poor
Apr	39	Poor
May	24	Moderate
Jun	22	Moderate
Jul	20	Moderate
Aug	18	Moderate
Sep	18	Moderate
Oct	24	Moderate
Nov	34	Moderate
Dec	67	Unhealthy

Location & terrain

Where is Obuasi?

Obuasi sits at 6.2°N, 1.7°W, 215 m above sea level, in Ghana. The nearest listed city is Bekwai, 29 km away.

Topography around Obuasi

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

Within 3 km, the terrain around Obuasi has significant variations in elevation — a maximum elevation change of 331 m around an average of 245 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 529 m; within 80 km, large variations in elevation — a maximum elevation change of 756 m.

The land around Obuasi is covered by trees (47%) and artificial surfaces (43%) within 3 km, trees (86%) within 16 km, and trees (91%) within 80 km.

3 km

331 m

trees 47%

16 km

529 m

trees 86%

80 km

756 m

trees 91%

treesshrubsgrasslandartificial surfacesbare terrain

← August Obuasi year-round climate October →Best places to visit in September

September weather nearby: Bekwai 29 km · Dunkwa 30 km · Kumasi 54 km · Assin Foso 56 km · New Tafo 58 km · Tafo 59 km · Ahwiaa 63 km · Twifu Praso 67 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

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 Obuasi (6.2023°, -1.668°, elevation 215 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).

	Avg high (°C)	Avg low (°C)
1	29	23
2	29	23
3	29	23
4	29	23
5	29	23
6	29	23
7	29	23
8	29	23
9	29	23
10	29	23
11	29	23
12	29	23
13	29	23
14	29	23
15	29	23
16	29	23
17	29	23
18	29	23
19	29	23
20	29	23
21	29	23
22	29	23
23	29	23
24	29	23
25	29	23
26	29	23
27	29	23
28	29	23
29	29	23
30	29	23

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	7	93
8	8	92
9	8	92
10	9	91
11	9	91
12	9	91
13	10	90
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	10	90
23	12	88
24	12	88
25	12	88
26	12	88
27	12	88
28	14	86
29	14	86
30	14	86

	Rain chance (%)
1	75
2	75
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	79
11	79
12	79
13	80
14	80
15	80
16	81
17	81
18	82
19	82
20	83
21	83
22	83
23	84
24	84
25	85
26	85
27	85
28	86
29	86
30	86

	Muggy (%)	Oppressive (%)
1	8	92
2	8	92
3	7	93
4	7	93
5	7	93
6	7	93
7	7	93
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	6	94
15	5	95
16	5	95
17	5	95
18	5	95
19	4	96
20	4	96
21	4	96
22	3	97
23	3	97
24	3	97
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	1	99

	Avg high (°C)	Avg low (°C)
1	29	23
2	29	23
3	29	23
4	29	23
5	29	23
6	29	23
7	29	23
8	29	23
9	29	23
10	29	23
11	29	23
12	29	23
13	29	23
14	29	23
15	29	23
16	29	23
17	29	23
18	29	23
19	29	23
20	29	23
21	29	23
22	29	23
23	29	23
24	29	23
25	29	23
26	29	23
27	29	23
28	29	23
29	29	23
30	29	23

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	7	93
8	8	92
9	8	92
10	9	91
11	9	91
12	9	91
13	10	90
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	10	90
23	12	88
24	12	88
25	12	88
26	12	88
27	12	88
28	14	86
29	14	86
30	14	86

	Rain chance (%)
1	75
2	75
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	79
11	79
12	79
13	80
14	80
15	80
16	81
17	81
18	82
19	82
20	83
21	83
22	83
23	84
24	84
25	85
26	85
27	85
28	86
29	86
30	86

	Muggy (%)	Oppressive (%)
1	8	92
2	8	92
3	7	93
4	7	93
5	7	93
6	7	93
7	7	93
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	6	94
15	5	95
16	5	95
17	5	95
18	5	95
19	4	96
20	4	96
21	4	96
22	3	97
23	3	97
24	3	97
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	1	99

	Avg high (°C)	Avg low (°C)
1	29	23
2	29	23
3	29	23
4	29	23
5	29	23
6	29	23
7	29	23
8	29	23
9	29	23
10	29	23
11	29	23
12	29	23
13	29	23
14	29	23
15	29	23
16	29	23
17	29	23
18	29	23
19	29	23
20	29	23
21	29	23
22	29	23
23	29	23
24	29	23
25	29	23
26	29	23
27	29	23
28	29	23
29	29	23
30	29	23

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	7	93
8	8	92
9	8	92
10	9	91
11	9	91
12	9	91
13	10	90
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	10	90
23	12	88
24	12	88
25	12	88
26	12	88
27	12	88
28	14	86
29	14	86
30	14	86

	Rain chance (%)
1	75
2	75
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	79
11	79
12	79
13	80
14	80
15	80
16	81
17	81
18	82
19	82
20	83
21	83
22	83
23	84
24	84
25	85
26	85
27	85
28	86
29	86
30	86

	Muggy (%)	Oppressive (%)
1	8	92
2	8	92
3	7	93
4	7	93
5	7	93
6	7	93
7	7	93
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	6	94
15	5	95
16	5	95
17	5	95
18	5	95
19	4	96
20	4	96
21	4	96
22	3	97
23	3	97
24	3	97
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	1	99