Last updated: January 18, 2025
Oyo, Nigeria, is characterized by a tropical savanna climate (Aw) according to the Köppen-Geiger classification. The region experiences a temperature range that varies significantly throughout the year, with minimum temperatures plummeting to 14°C (58°F) in January, and maximums soaring to an intense 40°C (105°F) in April. The average yearly temperature hovers around a warm 27°C (81°F), highlighting the region's overall warm and humid conditions, pivotal for its diverse ecosystems and agricultural practices.
Temperature patterns in Oyo, Nigeria, exhibit distinct seasonal variations, characterized by a warm climate throughout the year. The year begins with cooler temperatures in January, with minimums of 14°C (58°F) and maximums reaching 38°C (100°F). As February and March approach, temperatures increase, peaking in April with highs of 40°C (105°F). Following this brief ascent, May marks the onset of a slight decline in maximum temps, while minimums stabilize around 21°C (70°F). The onset of the rainy season in June brings further cooling, with temperatures gradually dropping through July and August, where the average remains around 25°C (77°F). As the year progresses, temperatures gradually rise again in late September through November, culminating in an October peak of 35°C (96°F) before returning to more temperate conditions in December, thus framing Oyo's climate as dynamic yet consistently warm throughout the year.
Ibadan experiences a minimum temperature of 16°C (61°F) in January and peaks at 39°C (102°F) in February, while Oyo has a slightly warmer minimum of 17°C (63°F) in January, also reaching a maximum of 39°C (102°F) in February. For more detailed insights, visit monthly temperatures in Ibadan and monthly temperatures in Oyo.
Precipitation in Oyo, Nigeria, follows a distinct seasonal pattern, predominantly influenced by the tropical climate. The year starts with minimal rainfall in January and December, averaging only 5 mm (0.2 in) and 4 mm (0.2 in) respectively. As the months progress towards the rainy season, February marks a slight increase to 18 mm (0.7 in), which quickly escalates in March and April, reaching 55 mm (2.2 in) and 67 mm (2.6 in) respectively. The real intensification occurs in May, as rainfall surges to 119 mm (4.7 in), setting the stage for the wettest months.
From June to August, Oyo experiences its peak precipitation, with June receiving 165 mm (6.5 in) and rainfall consistently exceeding 180 mm (7.1 in) in both July and August. The rainy season wanes in September and October, dropping to 189 mm (7.4 in) and 146 mm (5.7 in), followed by a significant decrease in November with 23 mm (0.9 in) and an almost dry December. The number of rainy days also reflects this pattern, peaking in July with 25 days of rainfall and tapering off to just 1 day in January and 0 days in December, illustrating the strong seasonality of precipitation in the region.
In Oyo, Nigeria, sunshine duration exhibits a clear seasonal pattern, showcasing an impressive increase from the beginning of the year into the peak months of the dry season. Starting in January with 264 hours of sunshine, the region sees a steady rise as the days grow longer, peaking in May with 312 hours. This upward trend continues through the spring, with March and April recording 306 hours and 300 hours respectively, highlighting the sun's increased presence as the dry season approaches its zenith. The transition into June brings only a slight decrease to 292 hours, indicating that while the rainy season begins, sunlight remains relatively abundant.
As the year progresses, sunshine hours gradually taper off during the rainy months of July and August, recording 280 hours and 268 hours respectively. September marks the lowest sunshine duration of the year at 259 hours, as cloud cover from continued rains becomes more frequent. However, a brief recovery occurs in the following months, with October and November showing increases to 284 hours and 292 hours respectively. Interestingly, December concludes the year with a notable rise to 319 hours, making it one of the sunniest months. This pattern not only emphasizes the transition from the dry to the wet season in Oyo but also showcases how the region experiences a vibrant cycle of sunlight throughout the year.
In Oyo, Nigeria, the UV Index consistently indicates a high risk of harm from unprotected sun exposure throughout the year, predominantly categorized as extreme. Commencing the year, both January and February maintain a UV Index of 11, signifying a crucial need for protective measures against sun exposure. The index rises sharply in March to 12, then reaches its zenith in April at 14, reflecting the increasing intensity of sunlight as the region transitions fully into the dry season. With burn times limited to just 10 minutes during these months, the population must remain vigilant, particularly under the relentless sun prevalent in this tropical environment.
As the rainy season begins in June, the UV Index stabilizes at 12 and remains similarly high in May, with July to September reporting values of 13. Despite the seasonal increase in cloud cover and rainfall, the UV risk remains significant, necessitating continued sun protection strategies. By October, the index drops to 11, and by November and December, it recedes further to 10, shifting to a very high exposure category with slightly longer burn times of 15 minutes. This seasonal analysis underscores the persistent UV threats faced in Oyo, highlighting the need for awareness and protective measures year-round to mitigate sun-related health risks.
UV Risk Categories
Daylight duration in Oyo, Nigeria, showcases a relatively consistent pattern throughout the year, reflecting the region's equatorial climate. Beginning the year in January and February, daylight persists at 11 hours daily, providing a steady rhythm of light. As March arrives, there is a slight increase to 12 hours, a trend that remains unchanged through April, May, June, and even into the subsequent months of July and August. This extended daylight period enhances visibility and contributes positively to daily activities, agriculture, and overall lifestyle throughout the dry season.
As the year progresses into the fall, daylight duration begins to taper off once again, returning to 11 hours in October. This reduction continues through November and December, reinforcing the cyclical nature of daylight exposure in the region. The minimal fluctuations in daylight hours suggest that Oyo experiences stable light levels year-round, which supports its tropical ecology and the lifestyle of its residents, making it an important factor in daily routines and agricultural cycles.
Ibadan, Nigeria, experiences a tropical climate characterized by distinct wet and dry seasons. Temperatures range from a minimum of 16°C (61°F) in January to a maximum of 39°C (102°F) in February, with average temperatures maintaining around 28°C (83°F). The wettest months are June to August, receiving over 200 mm (7.9 in) of rainfall, while January is the driest with just 8 mm (0.3 in). Sunshine hours vary throughout the year, peaking in May at 304 hours, which helps balance the humidity levels during the rainy season. For more detailed information, visit Ibadan climate.
Oyo, Nigeria, experiences a tropical climate characterized by distinct wet and dry seasons. Temperatures range from a minimum of 17°C (63°F) in January to a maximum of 39°C (102°F) in February, with average temperatures hovering around 28°C (83°F). Rainfall is highest between May and August, with average monthly precipitation peaking at 177 mm (7.0 in) in August. The region enjoys abundant sunshine, particularly in May with 304 hours, contributing to its warm climate. For more detailed information, visit Oyo climate.
In conclusion, Oyo, Nigeria, exemplifies a region marked by distinct climatic patterns, characterized by consistent warmth, abundant sunshine, and high UV exposure throughout the year. The data reveal a significant seasonal variation in rainfall, with a pronounced dry season followed by a rainy period that affects both temperature and sunlight availability. Meanwhile, the stable daylight duration provides a reliable foundation for daily life and agricultural practices. Understanding these climatic dynamics is essential for residents, policymakers, and researchers, as they navigate the benefits and challenges posed by Oyo's unique weather patterns, particularly in relation to health, agriculture, and environmental sustainability.