September weather forecast
Patama, Sierra Leone

The first month of the autumn, September, is still a warm month in Patama, Sierra Leone, with an average temperature ranging between min 21.5°C (70.7°F) and max 28.4°C (83.1°F).

Temperature

With the onset of September, a modest change to a still moderately hot 28.4°C (83.1°F) from August's 27°C (80.6°F) is noted in high-temperature. Nighttime temperature dips to a mean of 21.5°C (70.7°F) during September.

Heat index

September's average heat index is estimated at a torrid 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Patama, the average relative humidity in September is 92%.

Rainfall

In Patama, during September, the rain falls for 29.7 days and regularly aggregates up to 260mm (10.24") of precipitation. In Patama, during the entire year, the rain falls for 270.4 days and collects up to 1590mm (62.6") of precipitation.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of September, sunrise is at 06:35 and sunset at 18:51. On the last day of the month, sunrise is at 06:31 and sunset at 18:35 GMT.

Sunshine

The average sunshine in September is 4.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 6 during September translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.