Wa weather in May

In May, Wa sees average daytime highs of 33°C and overnight lows near 25°C, with 100 mm of rain across 15.3 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 32°C by the end. The sky is clear or mostly clear about 18% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Wa's 9th-clearest and 4th-windiest month. For the whole year in context, see Wa's year-round climate.

Daytime high
33°
7th warmest
Overnight low
25°
10th coldest
Rainfall
100 mm
15.3 wet days
Daylight
12 h 30 min
5:52 AM – 6:20 PM
Cloud cover
67%
9th clearest
Wind
10 km/h
4th windiest
Solar energy
6.14 kWh/m²
Travel score
2.9
out of 10

Wa is Upper West regional capital city.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 32°C by the end.

A typical May day in Wa reaches about 33°C in the afternoon and slips back to 25°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13425
23425
33425
43425
53425
63425
73425
83425
93425
103425
113425
123425
133425
143425
153325
163325
173325
183325
193325
203324
213324
223324
233324
243324
253324
263324
273324
283224
293224
303224
313224

How May really feels in Wa

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.

Wa weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 20°10.311.54.2
Feb36° / 23°61.111.72.6
Mar37° / 25°265.211.91.7
Apr36° / 26°6811.512.22.0
May33° / 25°10015.312.52.9
Jun31° / 23°10116.412.63.7
Jul29° / 23°16021.912.53.8
Aug29° / 22°22425.712.33.5
Sep29° / 22°19023.512.13.5
Oct32° / 23°8814.311.83.9
Nov34° / 21°101.911.53.8
Dec34° / 20°00.211.44.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33664
43664
53664
63763
73763
83862
93961
103961
113862
123862
133961
143961
153961
163961
173961
183961
193961
203862
213862
223862
233763
243961
253961
263961
273961
283961
294060
304159
314159

Chance of precipitation in May

Any precipitation

Wa gets around 100 mm of rain over 15.3 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 49% and peaks near 53% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
246
346
447
547
648
748
848
949
1049
1149
1250
1350
1450
1549
1649
1749
1849
1949
2049
2149
2249
2350
2450
2550
2651
2751
2851
2952
3052
3153

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
19901
29901
38911
48911
58911
67912
77912
86922
96922
105932
115932
124942
134933
143943
153943
163943
173943
183934
193934
203934
213934
223925
233925
243925
253925
264915
274915
284915
294915
304915
314915

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 30 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 5:57 AM to 5:51 AM, and sunset from 6:18 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:576:18
212.45:566:18
312.45:566:18
412.45:566:18
512.45:556:18
612.45:556:18
712.45:556:18
812.45:546:19
912.45:546:19
1012.45:546:19
1112.45:546:19
1212.45:536:19
1312.45:536:19
1412.45:536:20
1512.55:536:20
1612.55:526:20
1712.55:526:20
1812.55:526:20
1912.55:526:21
2012.55:526:21
2112.55:526:21
2212.55:526:21
2312.55:526:22
2412.55:516:22
2512.55:516:22
2612.55:516:22
2712.55:516:23
2812.55:516:23
2912.55:516:23
3012.55:516:23
3112.55:516:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.14 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 6.39 kWh/m² in March across the year — May's 6.14 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
286.0Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Wa

In seasonPeak

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

Wa's monsoon runs June–September, when most of the year's rain falls.

Wa sees seasonal dust haze (February–May), heaviest in February.

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

Is May a good time to visit Wa?

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

2.9
Sightseeing
9th-best month of the year
5.3
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Wa.

What to pack for Wa in May

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

In May, Wa sees daytime highs around 33°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Wa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Wa peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 19UV 13Dec 18UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Wa 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 Wa is worst in December — around 166 µg/m³ PM2.5 (very unhealthy), about 13.3× the cleanest month (August, 13 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyDec 16155 µg/m³Aug 1413 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb68Unhealthy
Mar43Poor
Apr37Poor
May20Moderate
Jun17Moderate
Jul14Moderate
Aug13Moderate
Sep15Moderate
Oct25Moderate
Nov86Unhealthy
Dec166Very unhealthy
Location & terrain

Where is Wa?

Wa sits at 10.1°N, 2.5°W, 326 m above sea level, in Ghana. The nearest listed city is Batié, 50 km away.

BatiéJirapaGaouaDoropoBounaLéoDiébougouDamongo

Topography around Wa

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

Within 3 km, the terrain around Wa has only modest variations in elevation — a maximum elevation change of 65 m around an average of 316 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 183 m; within 80 km, significant variations in elevation — a maximum elevation change of 410 m.

The land around Wa is covered by artificial surfaces (55%) within 3 km, grassland (48%), cropland (24%) and shrubs (22%) within 16 km, and grassland (55%) and shrubs (33%) within 80 km.

3 km
65 m
16 km
183 m
80 km
410 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Batié 50 km · Jirapa 57 km · Gaoua 80 km · Doropo 97 km · Bouna 103 km · Léo 123 km · Diébougou 129 km · Damongo 132 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 Wa (10.0607°, -2.5019°, elevation 326 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).