September weather forecastBoanim, Ghana
September
Weather in September
September, the first month of the autumn in Boanim, is still a warm month, with an average temperature varying between 28.9°C (84°F) and 21.1°C (70°F).Temperature
As August transitions into September, Boanim records an average high-temperature of a still moderately hot 28.9°C (84°F), showing a gentle shift from the preceding month. During the nights in September, Boanim experiences a consistent average temperature of 21.1°C (70°F).Heat index
September's average heat index is calculated to be a fiery hot 37°C (98.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. 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. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
With an average relative humidity of 90%, September is the most humid month.Rainfall
The month with the most rainfall is September, when the rain falls for 27.5 days and typically aggregates up to 155mm (6.1") of precipitation.Daylight
In September, the average length of the day is 12h and 10min.On the first day of the month, sunrise is at 05:58 and sunset at 18:13. On the last day of September, sunrise is at 05:53 and sunset at 17:57 GMT.
Sunshine
With an average of 4.8h of sunshine, September has the least sunshine of the year.UV index
The months with the lowest UV index are August and September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Take necessary precautions - Defending against sun damage is advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boanim, Ghana
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is February (36.2°C).
The months with the lowest average high temperature are July and August (28.8°C).
- Average low temperature in September: 21.1°C
The month with the highest average low temperature is March (23°C).
The coldest month (with the lowest average low temperature) is January (20.3°C).
Average pressure in September
Boanim, Ghana
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is July (1013.7mbar).
The month with the lowest atmospheric pressure is March (1009.6mbar).
Average wind speed in September
Boanim, Ghana
- Average wind speed in September: 5.1km/h
The windiest month (with the highest average wind speed) is August (6.2km/h).
The calmest months (with the lowest average wind speed) are October, November and December (4.5km/h).
Average humidity in September
Boanim, Ghana
- Average humidity in September: 90%
The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is January (55%).
Average rainfall in September
Boanim, Ghana
- Average rainfall in September: 155mm
The wettest month (with the highest rainfall) is September (155mm).
The driest month (with the least rainfall) is December (11mm).
Average rainfall days in September
Boanim, Ghana
- Average rainfall days in September: 27.5 days
The month with the highest number of rainy days is October (28.9 days).
The month with the least rainy days is January (7.1 days).
Average daylight in September /
Average sunshine in September
Boanim, Ghana
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 4h and 48min
The month with the most sunshine is January (Average sunshine: 9h and 42min).
The month with the least sunshine is September (Average sunshine: 4h and 48min).
Average sunshine days in September
Boanim, Ghana
- Average sunshine days in September: 1.1 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is September (1.1 days).
Average UV index in September
Boanim, Ghana
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are August and September (UV index 5).
Average cloud cover in September
Boanim, Ghana
- Average cloud cover in September: 78
The month with the most cloud cover is September (Cloud cover 78).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in September
Boanim, Ghana
- Average visibility in September: 5km
The months with the highest visibility are January and February (9km).
The months with the lowest visibility are September and October (5km).





