Sunyani in Winter
In winter (December, January and February), Sunyani sees average daytime highs around 33°C and overnight lows near 22°C, with 67 mm of rain over about 12 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 31°C in early December to 35°C by late February. The sky is clear or mostly clear about 50% of the time across winter, and the air most often feels oppressive.
Winter is Sunyani's 2nd-best season to visit on our travel score. For the whole year in context, see Sunyani's year-round climate.
- Avg daytime high
- 33°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 67 mm
- 12 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.9
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Sunyani in Winter
Over the season highs climb from about 31°C in early December to 35°C by late February.
A typical winter day in Sunyani reaches about 33°C and drops to 22°C overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Sunyani
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sunyani weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 22° | 15 | 3 | 11.6 | 4.0 |
| Feb | 35° / 24° | 35 | 6 | 11.8 | 2.9 |
| Mar | 34° / 24° | 86 | 14.7 | 12 | 2.6 |
| Apr | 33° / 24° | 100 | 16.5 | 12.2 | 2.8 |
| May | 32° / 24° | 98 | 18.3 | 12.3 | 3.2 |
| Jun | 30° / 23° | 102 | 19.2 | 12.4 | 3.7 |
| Jul | 29° / 22° | 83 | 16.4 | 12.4 | 4.5 |
| Aug | 28° / 22° | 91 | 17 | 12.2 | 4.5 |
| Sep | 29° / 23° | 132 | 22 | 12 | 3.7 |
| Oct | 30° / 22° | 116 | 21.2 | 11.8 | 3.6 |
| Nov | 31° / 22° | 57 | 10.9 | 11.7 | 4.3 |
| Dec | 32° / 22° | 18 | 3.4 | 11.6 | 4.8 |
Cloud cover in Winter
The sky is clear or mostly clear about 50% of the time across winter.
Chance of precipitation in Winter
Sunyani gets around 67 mm of rain over 12 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 7 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 36 min in early December to 11 h 48 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.4 kWh/m².
Hazard calendar for Sunyani
In winter, Sunyani overlaps 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.
Is winter a good time to visit Sunyani?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Sunyani. The water and warmth also suit a beach or pool day.
What to pack for Sunyani in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sunyani sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 12 days see rain.
UV index in Sunyani in Winter
Clear-sky midday UV across winter averages around 10 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 12 | 12 | 13 | 11 | 11 | 10 | 12 | 13 | 12 | 10 | 9 |
| 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 | 12 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Sunyani in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 97 | 103 | 45 | 39 | 23 | 19 | 18 | 17 | 18 | 25 | 34 | 82 |
| Level | Unhealthy | Unhealthy | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 97 | Unhealthy |
| Feb | 103 | Unhealthy |
| Mar | 45 | Poor |
| Apr | 39 | Poor |
| May | 23 | Moderate |
| Jun | 19 | Moderate |
| Jul | 18 | Moderate |
| Aug | 17 | Moderate |
| Sep | 18 | Moderate |
| Oct | 25 | Moderate |
| Nov | 34 | Moderate |
| Dec | 82 | Unhealthy |
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.
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.
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 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.