Sunyani weather in January

In January, Sunyani sees average daytime highs of 33°C and overnight lows near 22°C, with 15 mm of rain across 3 wet days and about 11.6 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 33°C in the first days to 34°C by the end. The sky is clear or mostly clear about 54% of the time in January, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of January to 11 h 42 min by month's end. Set against the rest of the year, January is Sunyani's 1st-clearest and 9th-windiest month. For the whole year in context, see Sunyani's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
22°
2nd coldest
Rainfall
15 mm
3 wet days
Daylight
11 h 36 min
6:30 AM – 6:07 PM
Cloud cover
40%
1st clearest
Wind
7 km/h
9th windiest
Solar energy
5.57 kWh/m²
Travel score
4.0
out of 10

Sunyani is Capital of Bono Region in Ghana.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 33°C in the first days to 34°C by the end.

A typical January day in Sunyani reaches about 33°C in the afternoon and slips back to 22°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C cooler than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13321
23321
33321
43321
53321
63321
73321
83321
93321
103322
113322
123322
133322
143322
153322
163322
173322
183422
193422
203422
213422
223422
233422
243422
253423
263423
273423
283423
293423
303423
313423

How January really feels in Sunyani

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sunyani weather by month

How January compares with the rest of the year at a glance. January is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°15311.64.0
Feb35° / 24°35611.82.9
Mar34° / 24°8614.7122.6
Apr33° / 24°10016.512.22.8
May32° / 24°9818.312.33.2
Jun30° / 23°10219.212.43.7
Jul29° / 22°8316.412.44.5
Aug28° / 22°911712.24.5
Sep29° / 23°13222123.7
Oct30° / 22°11621.211.83.6
Nov31° / 22°5710.911.74.3
Dec32° / 22°183.411.64.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
27921
37822
47822
57624
67624
77525
87426
97426
107228
117228
127129
137030
146931
156931
166931
176832
186832
196832
206832
216832
226832
236931
246931
256931
267030
277030
287129
297228
307228
317228

Chance of precipitation in January

Any precipitation

Sunyani gets around 15 mm of rain over 3 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
47
57
67
77
87
98
108
118
129
139
1410
1510
1611
1711
1811
1911
2011
2112
2212
2312
2412
2512
2612
2712
2812
2912
3012
3112

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
13010132720
23110132620
3329132619
4339122619
5349122619
6359122619
7368112619
8368112619
9368112619
10368102620
11358102620
12357102721
13347102721
14347102722
15337102722
16337102823
17327102823
18318102824
19308102824
20298102825
21298102825
22288102826
23278112826
24268112827
25268112828
26258112828
27258102829
28258102730
29248102731
30248102731
31247102632

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 36 min at the start of January to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:25 AM to 6:32 AM, and sunset from 6:00 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:256:00
211.66:256:00
311.66:266:01
411.66:266:01
511.66:276:02
611.66:276:02
711.66:276:03
811.66:286:03
911.66:286:04
1011.66:286:04
1111.66:296:05
1211.66:296:05
1311.66:296:06
1411.66:306:06
1511.66:306:07
1611.66:306:07
1711.66:306:08
1811.66:316:08
1911.66:316:08
2011.66:316:09
2111.66:316:09
2211.66:316:10
2311.66:326:10
2411.66:326:10
2511.76:326:11
2611.76:326:11
2711.76:326:12
2811.76:326:12
2911.76:326:12
3011.76:326:13
3111.76:326:13

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.57 kWh/m².

For context, solar energy here swings from a low near 3.74 kWh/m² to a high of 5.63 kWh/m² in February across the year — January's 5.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in January

Hazard calendar for Sunyani

In seasonPeak

In January, Sunyani sits inside its dust season. The full year is below, with each hazard's peak months called out.

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

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

Is January a good time to visit Sunyani?

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

4.0
Sightseeing
5th-best month of the year
7.3
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Sunyani for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sunyani in January

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

In January, Sunyani sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

UV index in Sunyani in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sunyani peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 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 10UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Sunyani in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sunyani is worst in February — around 103 µg/m³ PM2.5 (unhealthy), about 6.0× the cleanest month (August, 17 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyFeb 9101 µg/m³Aug 1617 µg/m³
PM2.5 (µg/m³)Level
Jan97Unhealthy
Feb103Unhealthy
Mar45Poor
Apr39Poor
May23Moderate
Jun19Moderate
Jul18Moderate
Aug17Moderate
Sep18Moderate
Oct25Moderate
Nov34Moderate
Dec82Unhealthy
Location & terrain

Where is Sunyani?

Sunyani sits at 7.3°N, 2.3°W, 298 m above sea level, in Ghana. The nearest listed city is Nsoatre, 17 km away.

TepaBechemWankyiTechiman

Topography around Sunyani

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

Within 3 km, the terrain around Sunyani has only modest variations in elevation — a maximum elevation change of 93 m around an average of 294 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 221 m; within 80 km, large variations in elevation — a maximum elevation change of 738 m.

The land around Sunyani is covered by artificial surfaces (65%) within 3 km, trees (49%) and grassland (30%) within 16 km, and trees (71%) within 80 km.

3 km
93 m
16 km
221 m
80 km
738 m
treesshrubsgrasslandartificial surfaces
January weather nearby: Nsoatre 17 km · Atronie 22 km · Berekum 31 km · Duayaw-Nkwanta 31 km · Tepa 41 km · Bechem 43 km · Wankyi 51 km · Techiman 51 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 Sunyani (7.3399°, -2.3268°, elevation 298 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).