Assin Foso weather in May

In May, Assin Foso sees average daytime highs of 31°C and overnight lows near 23°C, with 159 mm of rain across 26.3 wet days and about 12.3 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 3% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is Assin Foso's 9th-clearest and 8th-windiest month. For the whole year in context, see Assin Foso's year-round climate.

Daytime high
31°
7th warmest
Overnight low
23°
9th coldest
Rainfall
159 mm
26.3 wet days
Daylight
12 h 18 min
5:55 AM – 6:11 PM
Cloud cover
81%
9th clearest
Wind
6 km/h
8th windiest
Solar energy
4.57 kWh/m²
Travel score
2.8
out of 10

Assin Foso is town and Municipal Capital in Central Region, Ghana.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Assin Foso reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33124
43124
53124
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243023
253023
263023
273023
283023
293023
303023
313023

How May really feels in Assin Foso

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

Assin Foso weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°317.911.74.2
Feb33° / 24°531211.83.2
Mar33° / 24°10820.6122.7
Apr32° / 24°11221.712.12.8
May31° / 23°15926.312.32.8
Jun29° / 23°17326.512.33.2
Jul28° / 22°11922.612.33.9
Aug28° / 22°8820.312.24.2
Sep29° / 23°13425.1123.4
Oct30° / 23°15226.411.93.1
Nov31° / 23°8518.811.73.5
Dec31° / 23°389.811.74.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21981
31981
41981
52080
62080
71981
81981
91981
101981
111882
121882
131882
141783
151783
161783
171585
181585
191486
201486
211288
221288
231288
241189
251090
261090
27991
28991
29991
30991
31991

Chance of precipitation in May

Any precipitation

Assin Foso gets around 159 mm of rain over 26.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
180
281
381
482
582
683
783
883
984
1084
1184
1284
1384
1484
1584
1684
1784
1884
1984
2085
2185
2285
2386
2486
2587
2687
2788
2889
2989
3090
3190

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15149
25149
35149
45149
55149
65248
75248
85248
95347
105347
115446
125446
135545
145644
155743
165842
175941
186040
196139
206238
216337
226436
236535
246634
256832
266931
277030
287228
297327
307426
317624

Wind in May

Winds average 6 km/h in May.

Across May, 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
17calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 12 min at the start of May to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 5:58 AM to 5:55 AM, and sunset from 6:10 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:586:10
212.25:586:10
312.25:576:10
412.25:576:10
512.25:576:10
612.25:576:10
712.25:566:10
812.25:566:10
912.25:566:10
1012.25:566:10
1112.25:566:10
1212.25:566:10
1312.25:556:10
1412.35:556:10
1512.35:556:10
1612.35:556:11
1712.35:556:11
1812.35:556:11
1912.35:556:11
2012.35:556:11
2112.35:556:11
2212.35:556:11
2312.35:556:12
2412.35:556:12
2512.35:556:12
2612.35:556:12
2712.35:556:12
2812.35:556:12
2912.35:556:13
3012.35:556:13
3112.35:556:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.57 kWh/m².

For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 5.06 kWh/m² in March across the year — May's 4.57 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.6Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.1Bright
314.1Bright
Planning a trip in May

Hazard calendar for Assin Foso

In seasonPeak

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

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

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

Is May a good time to visit Assin Foso?

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

2.8
Sightseeing
10th-best month of the year
4.1
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Assin Foso.

What to pack for Assin Foso in May

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

In May, Assin Foso sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Assin Foso in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Assin Foso peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 24UV 13Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Assin Foso in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Assin Foso 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).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyJan 1878 µg/m³Aug 2318 µg/m³
PM2.5 (µg/m³)Level
Jan79Unhealthy
Feb72Unhealthy
Mar42Poor
Apr39Poor
May24Moderate
Jun22Moderate
Jul20Moderate
Aug18Moderate
Sep18Moderate
Oct24Moderate
Nov34Moderate
Dec67Unhealthy
Location & terrain

Where is Assin Foso?

Assin Foso sits at 5.7°N, 1.6°W, 107 m above sea level, in Ghana. The nearest listed city is Twifu Praso, 15 km away.

FosoObuasiTarkwaPresteaShama JunctionElmina

Topography around Assin Foso

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

Within 3 km, the terrain around Assin Foso has only modest variations in elevation — a maximum elevation change of 78 m around an average of 99 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 783 m.

The land around Assin Foso is covered by trees (88%) within 3 km, trees (95%) within 16 km, and trees (95%) within 80 km.

3 km
78 m
16 km
307 m
80 km
783 m
treesshrubsgrasslandartificial surfaceswater
May weather nearby: Twifu Praso 15 km · Dunkwa 32 km · Foso 40 km · Obuasi 56 km · Tarkwa 58 km · Prestea 62 km · Shama Junction 76 km · Elmina 76 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 Assin Foso (5.7°, -1.65°, elevation 107 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).