September weather forecast
Oyo, Nigeria

September marks the highest average rainfall amount accrued in a year with 114mm (4.49") of precipitation. Despite this, temperatures slightly rise compared to August, contributing to a warmer feel overall. Sunshine is quite limited due to high cloud cover percentage, and mild winds continue flowing. Despite the high precipitation, the warm and wind-swept ambiance coupled with dim sunlight offers an appealing atmospheric blend.

Temperature

The transition into September in Oyo notes an average high-temperature of a still moderately hot 29.2°C (84.6°F), revealing a mild distinction from the 28.3°C (82.9°F) in August. During the month of September, the temperature generally drops to a low average of 21.9°C (71.4°F).

Heat index

September's average heat index is appraised at a very hot 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

September is the most humid month, with an average relative humidity of 88%.

Rainfall

The month with the most rainfall is September, when the rain falls for 25.3 days and typically aggregates up to 114mm (4.49") of precipitation.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September in Oyo, sunrise is at 06:36 and sunset at 18:51. On the last day of the month, sunrise is at 06:32 and sunset at 18:35 WAT.

Sunshine

In September, the average sunshine is 5.8h.

UV index

In Oyo, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.