September weather forecast
Umuchu, Nigeria

September, the first month of the autumn in Umuchu, is still a warm month, with an average temperature varying between 29°C (84.2°F) and 22.6°C (72.7°F).

Temperature

September's onset records a minor alteration in the average high-temperature to a still warm 29°C (84.2°F) from August's 28.5°C (83.3°F). In the month of September, the average low-temperature usually rests at a pleasant 22.6°C (72.7°F).

Heat index

The heat index value during September is appraised at a sweltering 37°C (98.6°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The months with the highest humidity in Umuchu are July through September, with an average relative humidity of 88%.

Rainfall

In Umuchu, Nigeria, during September, the rain falls for 28.3 days and regularly aggregates up to 209mm (8.23") of precipitation. In Umuchu, during the entire year, the rain falls for 253.1 days and collects up to 1279mm (50.35") of precipitation.

Daylight

In September, the average length of the day in Umuchu, Nigeria, is 12h and 9min.
On the first day of September in Umuchu, sunrise is at 06:24 and sunset at 18:38. On the last day of the month, sunrise is at 06:19 and sunset at 18:23 WAT.

Sunshine

The average sunshine in September is 5.8h.

UV index

The months with the lowest UV index in Umuchu are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.