Bolgatanga weather in August

In August, Bolgatanga sees average daytime highs of 29°C and overnight lows near 23°C, with 211 mm of rain across 25.2 wet days and about 12.4 hours of daylight. It is the 12th-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 2% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Bolgatanga's 12th-clearest and 9th-windiest month. For the whole year in context, see Bolgatanga's year-round climate.

Daytime high
29°
12th warmest
Overnight low
23°
5th coldest
Rainfall
211 mm
25.2 wet days
Daylight
12 h 24 min
5:57 AM – 6:18 PM
Cloud cover
80%
12th clearest
Wind
9 km/h
9th windiest
Solar energy
4.58 kWh/m²
Travel score
3.4
out of 10

Bolgatanga is capital of the Upper East Region, Ghana.

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 29°C through the month.

A typical August day in Bolgatanga 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, August runs about 1°C cooler than July and about 1°C cooler than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923
312923

How August really feels in Bolgatanga

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Bolgatanga weather by month

How August compares with the rest of the year at a glance. August is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 21°00.111.44.0
Feb36° / 24°20.511.62.3
Mar38° / 27°102.311.91.0
Apr38° / 27°326.212.21.2
May35° / 26°5310.312.52.2
Jun33° / 25°6211.412.63.4
Jul30° / 24°13219.212.63.7
Aug29° / 23°21125.212.43.4
Sep30° / 23°14418.512.13.7
Oct33° / 23°468.711.83.7
Nov35° / 22°40.611.53.0
Dec34° / 21°0011.43.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in August, the cloudiest month of the year.

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

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21981
31882
41882
51783
61684
71684
81585
91585
101585
111486
121486
131486
141486
151387
161387
171387
181387
191387
201387
211387
221387
231486
241486
251585
261585
271684
281684
291783
301783
311882

Chance of precipitation in August

Any precipitation

Bolgatanga gets around 211 mm of rain over 25.2 wet days in August, the wettest month. 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 83% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
175
276
376
477
577
678
779
879
980
1080
1181
1281
1381
1482
1582
1682
1782
1882
1983
2083
2183
2283
2383
2483
2583
2683
2783
2882
2982
3081
3180

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1955
2955
3964
4964
5964
6964
7955
8955
9955
10955
11955
12955
13946
14946
15946
16937
17937
18928
19928
20928
21928
22919
23919
24919
25919
26919
27919
28919
29919
30919
319010

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 30 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:55 AM to 5:57 AM, and sunset from 6:24 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:556:24
212.55:556:24
312.55:556:23
412.55:566:23
512.45:566:23
612.45:566:22
712.45:566:22
812.45:566:22
912.45:566:21
1012.45:566:21
1112.45:566:20
1212.45:566:20
1312.45:576:20
1412.45:576:19
1512.45:576:19
1612.45:576:18
1712.45:576:18
1812.35:576:17
1912.35:576:17
2012.35:576:16
2112.35:576:16
2212.35:576:15
2312.35:576:15
2412.35:576:14
2512.35:576:14
2612.35:576:13
2712.35:576:12
2812.25:576:12
2912.25:576:11
3012.25:576:11
3112.25:576:10

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.58 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 6.55 kWh/m² in March across the year — August's 4.58 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Bolgatanga

In seasonPeak

In August, Bolgatanga sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Bolgatanga's monsoon runs July–September, when most of the year's rain falls.

Bolgatanga sees seasonal dust haze (February–June), heaviest in March.

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

Is August a good time to visit Bolgatanga?

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

3.4
Sightseeing
6th-best month of the year
4.5
Beach & pool
10th-best month of the year

August is a weaker month for outdoor sightseeing in Bolgatanga.

What to pack for Bolgatanga in August

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

In August, Bolgatanga sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Bolgatanga in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bolgatanga peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 18UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Bolgatanga 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 Bolgatanga is worst in December — around 97 µg/m³ PM2.5 (unhealthy), about 6.3× the cleanest month (August, 15 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyDec 1895 µg/m³Aug 1015 µg/m³
PM2.5 (µg/m³)Level
Jan78Unhealthy
Feb78Unhealthy
Mar56Unhealthy
Apr41Poor
May22Moderate
Jun18Moderate
Jul16Moderate
Aug15Moderate
Sep20Moderate
Oct31Moderate
Nov70Unhealthy
Dec97Unhealthy
Location & terrain

Where is Bolgatanga?

Bolgatanga sits at 10.8°N, 0.9°W, 191 m above sea level, in Ghana. The nearest listed city is Navrongo, 29 km away.

ZabréNaleriguGomboussougouBawkuBittouSinkassé

Topography around Bolgatanga

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

Within 3 km, the terrain around Bolgatanga has only modest variations in elevation — a maximum elevation change of 67 m around an average of 186 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 253 m; within 80 km, significant variations in elevation — a maximum elevation change of 380 m.

The land around Bolgatanga is covered by artificial surfaces (42%) and cropland (41%) within 3 km, cropland (55%) and grassland (27%) within 16 km, and cropland (43%), grassland (36%) and shrubs (20%) within 80 km.

3 km
67 m
16 km
253 m
80 km
380 m
treesshrubsgrasslandcroplandartificial surfaces
August weather nearby: Navrongo 29 km · Zabré 50 km · 53 km · Nalerigu 60 km · Gomboussougou 72 km · Bawku 73 km · Bittou 79 km · Sinkassé 100 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 Bolgatanga (10.7856°, -0.8514°, elevation 191 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).