| Official Name: | Otan Ayegbaju |
| Other Name: | Otan Aiyegbaju |
| Settlement Type: | Town |
| Subdivision Type: | Country |
| Subdivision Name: | Nigeria |
| Subdivision Type1: | State |
| Subdivision Name1: | Osun |
| Area Total Km2: | 100 |
| Otan | |
| Founder: | Descendants of Oduduwa |
| Pushpin Map: | Nigeria |
| Pushpin Map Caption: | Location of Otan Ayegbaju in Nigeria |
| Leader Name: | Oba Lukman Adesola Ojo Fadipe, Arenibiowo II, Owa Olatanka III |
| Subdivision Type2: | Local Government area |
| Subdivision Name2: | Boluwaduro |
| Government Type: | Monarchy |
| Leader Title: | Owa of Otan Ayegbaju |
| Established Date: | 1500s |
| Established Title: | First settled |
Otan Ayegbaju (Otan for short) is an historic town in Yorubaland founded about 800 years ago by descendants of Oduduwa, Olasooye Osilokun the 16th child of Oduduwa who migrated from Ifẹ. It is the headquarters of Boluwaduro Local Government Area. Nearby towns are Eripa, Iresi, Igbajo, Oke-irun and Oyan.[1] It's the seat of the Catholic Diocese of Osogbo Marian pilgrimage (Oke Maria).
The Owa of Otan Ayegbaju is the title given to the king. The Owa of Otan Ayegbaju was the 26th in the third dispersal Republic|Oduduwa]]. The town's government wasn't destroyed by inter-tribal wars. The current Owa is Oba Lukman Adesola Ojo Fadipe Arenibiowo II, Owa Olatanka III. He was installed in June 2009.[2]
Otan is located in the north-eastern area of Osun State, thirty-seven kilometers from Oshogbo, the state capital. It covers a land mass of . Its terrain consists of hills, mountains, dense forest, vegetation and gullies. The climate is tropical with warm temperatures and low humidity.[3]
Otan Ayegbaju borders with Eripa, Iresi, Oke-irun, Igbajo and Oyan.
The rainy season in Otan Ayegbaju is humid, oppressive, and cloudy, whereas the dry season is warm, muggy, and partially cloudy. The average annual temperature ranges from 62 to 90 degrees Fahrenheit, rarely falling below 56 or rising over 95.[4] [5]
Between 23 January and 31 March, which is the length of the hot season, the average daily high temperature is above 88°F. In Otan Ayegbaju, March is the hottest month of the year, with an average high of 89°F and low of 71°F.
The 3.8-month chilly season, which runs from 17 June to 11 October, has an average daily maximum temperature of less than 81°F. In Otan Ayegbaju, August is the coldest month of the year, with average lows of 67°F and highs of 79°F.
Over the course of the year, Otan Ayegbaju suffers significant seasonal change in the average percentage of the sky covered by clouds.
Beginning about 16 November and lasting for 2.9 months, the clearer season in Otan Ayegbaju ends around 13 February.
The sky is clear, mostly clear, or partly overcast 52% of the time on average in December, the clearest month of the year in Otan Ayegbaju.
Beginning around 13 February and lasting for 9.1 months, the cloudier period of the year ends around 16 November.
April is the cloudiest month of the year in Otan Ayegbaju, with an average of 84% of the time that the sky is overcast or largely cloudy during this month.
A day that has at least 0.04 inches of liquid or liquid-equivalent precipitation is considered to be wet. In Otan Ayegbaju, the likelihood of rainy days varies wildly throughout the year.
In the 6.3-month-long wetter season, which runs from 14 April to 23 October, there is a larger than 43% chance that any given day would be rainy. September has an average of 25.0 days with at least 0.04 inches of precipitation, making it the month with the most rainy days in Otan Ayegbaju.
Between 23 October and 14 April, or 5.7 months, is the dry season. December has an average of 0.7 days with at least 0.04 inches of precipitation, making it the month with the fewest wet days in Otan Ayegbaju.
We categorize rainy days into those that only involve rain, those that only involve snow, and those that combine the two. With an average of 25.0 days, September is the month in Otan Ayegbaju with the most rainy days. According to this classification, rain alone has a peak probability of 85% on 21 September and is the most frequent type of precipitation over the entire year.