September weather forecast
Wa, Ghana

September witnesses a rapid decrease in relative humidity from the soaring value of 82% in August. The significant drop in both rainfall and relative humidity marks the beginning of the transition into the dry season. The weather in Wa, during this month, is a blend of occasional rain showers, plenty of sunshine and declining temperatures. The decrease in cloud cover also contributes to improved weather conditions, favourably affecting outdoor activities in the town.

Temperature

As September takes its course, Wa's average high-temperature registers at a hot 30.8°C (87.4°F), closely aligning with the preceding month. In September, the average low-temperature records at an agreeable 22°C (71.6°F) during the nights.

Heat index

September's average heat index is calculated to be a blisteringly hot 41°C (105.8°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The average relative humidity in September is 81%.

Rainfall

In Wa, in September, during 23.1 rainfall days, 123mm (4.84") of precipitation is typically accumulated. In Wa, during the entire year, the rain falls for 133.7 days and collects up to 643mm (25.31") of precipitation.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 06:00 and sunset at 18:19. On the last day of the month, sunrise is at 05:58 and sunset at 18:01 GMT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Wa is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.