Climate averages 1991–2020
Oyan weather
in May.
A hot, wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Oyan: daytime highs average 30.7°C and nights cool to about 22.9°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 164 mm of rain on roughly 23 days, which makes May a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average May day.
The nearest other city in this atlas is Offa (12 km away). In May its highs average 30.6°C, about as warm as Oyan, with 125 mm of rain.
Among the 143 cities listed in Nigeria, Oyan ranks 59th of 143 for the warmest May highs and joint 77th of 143 for the driest May (rainfall, lowest first). The mean May high of those 143 cities is 31.7°C; Oyan is 1.0°C cooler than that mean.
From May to June, average highs fall by 1.9°C to 28.8°C, and monthly rainfall rises from 164 mm to 202 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Oyan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.8°C20.8°C | 20.8°C | 11 | 2.1 | 11.712 h |
| February | 34.8°C22.2°C | 22.2°C | 24 | 4.7 | 11.912 h |
| March | 34.2°C23.3°C | 23.3°C | 66 | 13.1 | 12.112 h |
| April | 32.6°C23.3°C | 23.3°C | 104 | 17.6 | 12.312 h |
| May, selected | 30.7°C22.9°C | 22.9°C | 164 | 22.9 | 12.512 h |
| June | 28.8°C22.0°C | 22.0°C | 202 | 25.9 | 12.613 h |
| July | 27.4°C21.3°C | 21.3°C | 200 | 27.2 | 12.513 h |
| August | 27.1°C21.0°C | 21.0°C | 197 | 25.3 | 12.412 h |
| September | 28.1°C21.3°C | 21.3°C | 264 | 27.3 | 12.212 h |
| October | 29.6°C21.6°C | 21.6°C | 220 | 25.2 | 12.012 h |
| November | 31.9°C22.0°C | 22.0°C | 40 | 6.7 | 11.812 h |
| December | 33.2°C21.0°C | 21.0°C | 6.1 | 1.5 | 11.712 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Offa in MayNigeria · 12 kmHigh 30.6°C · Low 22.8°C · 125 mm rain
- Ila Orangun in MayNigeria · 16 kmHigh 30.1°C · Low 22.4°C · 185 mm rain
- Ikirun in MayNigeria · 19 kmHigh 30.2°C · Low 22.9°C · 164 mm rain
- Oke Mesi in MayNigeria · 31 kmHigh 29.1°C · Low 22.0°C · 166 mm rain
- Osogbo in MayNigeria · 39 kmHigh 30.2°C · Low 23.1°C · 140 mm rain
- Ilobu in MayNigeria · 39 kmHigh 30.3°C · Low 23.2°C · 140 mm rain
- Ipoti in MayNigeria · 39 kmHigh 29.4°C · Low 21.8°C · 166 mm rain
- Ijero-Ekiti in MayNigeria · 42 kmHigh 29.7°C · Low 22.4°C · 166 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Oyan) is explained once on the Oyan year overview and on the Sources, method and limits page.
Ikirun lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.