September weather forecastHow Ba, The Gambia
September
Weather in September
September, the first month of the autumn in How Ba, is still a warm month, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 26.5°C (79.7°F).Temperature
The beginning of September reveals an average high-temperature of a still moderately hot 29°C (84.2°F), showing minimal deviation from the previous month. A consistent nighttime average temperature of 26.5°C (79.7°F) is maintained during September.Heat index
The heat index for September is estimated at a torrid 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Know that the heat index computations account for shaded terrains and slight winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
August and September, with an average relative humidity of 80%, are the most humid months.Rainfall
In How Ba, in September, during 18.5 rainfall days, 122mm (4.8") of precipitation is typically accumulated. Throughout the year, in How Ba, there are 80.9 rainfall days, and 436mm (17.17") of precipitation is accumulated.Daylight
In How Ba, the average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 06:55 and sunset at 19:18. On the last day of September, sunrise is at 06:56 and sunset at 18:57 GMT.
Sunshine
In How Ba, the average sunshine in September is 8.3h.UV index
May through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
How Ba, The Gambia
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is November (31.2°C).
The month with the lowest average high temperature is May (26.5°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is October (27.5°C).
The coldest month (with the lowest average low temperature) is February (21.7°C).
Average pressure in September
How Ba, The Gambia
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is April (1010.4mbar).
Average wind speed in September
How Ba, The Gambia
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is February (20.2km/h).
The calmest month (with the lowest average wind speed) is September (13.6km/h).
Average humidity in September
How Ba, The Gambia
- Average humidity in September: 80%
The months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is January (44%).
Average rainfall in September
How Ba, The Gambia
- Average rainfall in September: 122mm
The wettest month (with the highest rainfall) is August (183mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
How Ba, The Gambia
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is August (22.8 days).
The months with the least rainy days are January and February (0.3 days).
Average daylight in September /
Average sunshine in September
How Ba, The Gambia
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 8h and 18min
The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in September
How Ba, The Gambia
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (5.7 days).
Average UV index in September
How Ba, The Gambia
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March and April (UV index 6).
Average cloud cover in September
How Ba, The Gambia
- Average cloud cover in September: 37
The month with the most cloud cover is August (Cloud cover 49).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
How Ba, The Gambia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
