Iseyin weather in May

In May, Iseyin sees average daytime highs of 32°C and overnight lows near 24°C, with 123 mm of rain across 19.3 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 4% 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 Iseyin's 8th-clearest and 4th-windiest month. For the whole year in context, see Iseyin's year-round climate.

Daytime high
32°
7th warmest
Overnight low
24°
10th coldest
Rainfall
123 mm
19.3 wet days
Daylight
12 h 24 min
6:31 AM – 6:53 PM
Cloud cover
80%
8th clearest
Wind
7 km/h
4th windiest
Solar energy
4.78 kWh/m²
Travel score
3.0
out of 10

Iseyin is LGA and town in Oyo State, Nigeria.

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 32°C through the month.

A typical May day in Iseyin reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223223
233223
243123
253123
263123
273123
283123
293123
303123
313123

How May really feels in Iseyin

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.

Iseyin 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° / 22°71.711.63.9
Feb35° / 23°163.611.73.0
Mar35° / 24°471011.92.6
Apr33° / 24°7913.812.22.8
May32° / 24°12319.312.43.0
Jun30° / 23°1552312.53.3
Jul29° / 22°17024.612.43.6
Aug28° / 22°17423.812.33.8
Sep29° / 22°16723.7123.4
Oct31° / 23°10217.911.83.6
Nov33° / 23°153.611.64.0
Dec33° / 22°4111.54.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% 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 84%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
31981
41882
51882
61882
71882
81882
91882
101783
111783
121783
131783
141783
151684
161684
171684
181684
191684
201684
211585
221486
231486
241486
251387
261387
271288
281288
291189
301189
311189

Chance of precipitation in May

Any precipitation

Iseyin gets around 123 mm of rain over 19.3 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 62% and peaks near 74% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
257
358
459
559
659
760
860
960
1059
1159
1259
1359
1459
1559
1659
1759
1860
1960
2061
2162
2263
2364
2466
2567
2668
2770
2871
2972
3073
3174

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
408713
508713
608713
708812
808812
908812
1008812
1108911
1208911
1308911
1408911
1509010
1609010
1709010
180919
190919
200919
210928
220928
230928
240928
250937
261927
271936
281936
291936
301945
311945

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 6:35 AM to 6:30 AM, and sunset from 6:51 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:356:51
212.36:346:51
312.36:346:51
412.36:346:51
512.36:336:51
612.36:336:51
712.36:336:52
812.36:336:52
912.36:326:52
1012.36:326:52
1112.36:326:52
1212.36:326:52
1312.36:316:52
1412.46:316:52
1512.46:316:53
1612.46:316:53
1712.46:316:53
1812.46:316:53
1912.46:316:53
2012.46:316:53
2112.46:306:54
2212.46:306:54
2312.46:306:54
2412.46:306:54
2512.46:306:54
2612.46:306:55
2712.46:306:55
2812.46:306:55
2912.46:306:55
3012.46:306:56
3112.46:306:56

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.78 kWh/m².

For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 5.86 kWh/m² in February across the year — May's 4.78 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in May

Hazard calendar for Iseyin

In seasonPeak

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

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

Iseyin 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 Iseyin?

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

3.0
Sightseeing
9th-best month of the year
4.8
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Iseyin.

What to pack for Iseyin in May

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

In May, Iseyin sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Iseyin 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 Iseyin peaks around April 9 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highApr 9UV 12Dec 20UV 7
UV index (midday)Level
Jan8Very high
Feb8Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec7Very high

Air quality in Iseyin 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 Iseyin is worst in January — around 117 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (July, 30 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 23117 µg/m³Jul 2130 µg/m³
PM2.5 (µg/m³)Level
Jan117Unhealthy
Feb116Unhealthy
Mar63Unhealthy
Apr55Poor
May39Poor
Jun33Moderate
Jul30Moderate
Aug31Moderate
Sep37Poor
Oct54Poor
Nov71Unhealthy
Dec102Unhealthy
Location & terrain

Where is Iseyin?

Iseyin sits at 8.0°N, 3.6°E, 313 m above sea level, in Nigeria. The nearest listed city is Oyo, 39 km away.

Ibadan

Topography around Iseyin

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

Within 3 km, the terrain around Iseyin has only modest variations in elevation — a maximum elevation change of 153 m around an average of 311 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 251 m; within 80 km, significant variations in elevation — a maximum elevation change of 564 m.

The land around Iseyin is covered by artificial surfaces (53%) and trees (22%) within 3 km, shrubs (32%), cropland (31%) and trees (20%) within 16 km, and trees (45%), shrubs (22%) and cropland (20%) within 80 km.

3 km
153 m
16 km
251 m
80 km
564 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Oyo 39 km · Fiditi 45 km · Orita-Eruwa 49 km · Eruwa 52 km · Igangan 56 km · Igbo-Ora 69 km · Ogbomoso 73 km · Ibadan 74 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 Iseyin (7.9702°, 3.5963°, elevation 313 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).