Osogbo weather in May

In May, Osogbo sees average daytime highs of 31°C and overnight lows near 23°C, with 140 mm of rain across 21.8 wet days and about 12.3 hours of daylight. It is the 7th-warmest and 6th-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 2% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is Osogbo's 8th-clearest and 5th-windiest month. For the whole year in context, see Osogbo's year-round climate.

Daytime high
31°
7th warmest
Overnight low
23°
10th coldest
Rainfall
140 mm
21.8 wet days
Daylight
12 h 24 min
6:27 AM – 6:49 PM
Cloud cover
82%
8th clearest
Wind
7 km/h
5th windiest
Solar energy
4.61 kWh/m²
Travel score
3.2
out of 10

Osogbo is city and local government area in Osun State, Nigeria.

Density
13,723/km²
people per km²

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 Osogbo 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 32°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)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How May really feels in Osogbo

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.

Osogbo weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 22°112.311.63.8
Feb35° / 23°235.111.73.0
Mar34° / 24°6212.811.92.9
Apr32° / 24°8316.212.23.2
May31° / 23°14021.812.33.2
Jun29° / 22°18125.312.43.3
Jul28° / 22°18126.512.43.7
Aug28° / 22°17724.612.34.0
Sep29° / 22°20425.8123.4
Oct30° / 22°15424.111.83.4
Nov32° / 22°357.411.64.3
Dec33° / 21°61.511.64.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 87%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31684
41684
51684
61585
71585
81585
91585
101585
111486
121486
131486
141486
151486
161486
171387
181387
191387
201387
211387
221189
231189
241090
251090
26991
27991
28892
29892
30892
31892

Chance of precipitation in May

Any precipitation

Osogbo gets around 140 mm of rain over 21.8 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 70% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
365
465
566
666
767
867
967
1068
1168
1268
1368
1469
1569
1670
1770
1870
1971
2071
2172
2272
2373
2474
2575
2675
2776
2877
2977
3078
3178

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 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
108713
208713
308713
408812
508812
608812
708911
808911
908911
1008911
1108911
1208911
1309010
1409010
1509010
1609010
1709010
1809010
1909010
200919
210919
220919
230919
240928
250928
261927
271936
281936
291945
301945
311954

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
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 May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 24 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 6:31 AM to 6:27 AM, and sunset from 6:47 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:316:47
212.36:316:47
312.36:306:47
412.36:306:47
512.36:306:47
612.36:296:47
712.36:296:47
812.36:296:48
912.36:296:48
1012.36:286:48
1112.36:286:48
1212.36:286:48
1312.36:286:48
1412.36:286:48
1512.36:286:48
1612.46:276:49
1712.46:276:49
1812.46:276:49
1912.46:276:49
2012.46:276:49
2112.46:276:49
2212.46:276:50
2312.46:276:50
2412.46:276:50
2512.46:276:50
2612.46:276:50
2712.46:276:51
2812.46:276:51
2912.46:276:51
3012.46:276:51
3112.46:276:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.61 kWh/m².

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 5.71 kWh/m² in February across the year — May's 4.61 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.4Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in May

Hazard calendar for Osogbo

In seasonPeak

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

Osogbo's rainy season runs May–October, when most of the year's rain falls.

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

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

Is May a good time to visit Osogbo?

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

3.2
Sightseeing
9th-best month of the year
4.7
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Osogbo.

What to pack for Osogbo in May

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

In May, Osogbo sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Osogbo 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 Osogbo peaks around March 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 23UV 12Dec 21UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec7Very high

Air quality in Osogbo 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 Osogbo is worst in January — around 170 µg/m³ PM2.5 (very unhealthy), about 3.8× the cleanest month (July, 45 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyJan 17168 µg/m³Jul 2345 µg/m³
PM2.5 (µg/m³)Level
Jan170Very unhealthy
Feb158Very unhealthy
Mar86Unhealthy
Apr72Unhealthy
May58Unhealthy
Jun52Poor
Jul45Poor
Aug46Poor
Sep58Unhealthy
Oct78Unhealthy
Nov100Unhealthy
Dec157Very unhealthy
Location & terrain

Where is Osogbo?

Osogbo sits at 7.8°N, 4.6°E, 336 m above sea level, in Nigeria. The nearest listed city is Ilobu, 11 km away.

Topography around Osogbo

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

Within 3 km, the terrain around Osogbo has only modest variations in elevation — a maximum elevation change of 89 m around an average of 320 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, large variations in elevation — a maximum elevation change of 647 m.

The land around Osogbo is covered by artificial surfaces (77%) within 3 km, trees (63%) within 16 km, and trees (66%) within 80 km.

3 km
89 m
16 km
191 m
80 km
647 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Ilobu 11 km · Ede 14 km · Ikirun 20 km · Ilesa 26 km · Inisa 26 km · Ijebu-Jesa 30 km · Ejigbo 31 km · Ile-Ife 32 km

Nigeria travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 13% of US
price level, 2025
GDP per capita
$1,224
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
15.7
per 100k, 2023
Road deaths
20.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 569
Religion
Muslim 54%other Christian 35%Roman Catholic 11%other 1%

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 Osogbo (7.771°, 4.557°, elevation 336 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).