September weather forecastDakar, Senegal
September
Weather in September
Weather conditions in September commence a gradual transition from the wet season peak. Rainfall decreases to 88mm (3.46") by comparison to August, yet comfortably falls into the higher rain spectrum category. Dakar's skyline presents a clearer view with decreasing cloud percentage. However, September persists with the warm trend of previous months, keeping the city alive. Overall, the city moderates the heat and rains, offering a less intense climate.Temperature
The onset of September in Dakar marks an average high-temperature of a still warm 28.2°C (82.8°F), hardly differing from August's 27.7°C (81.9°F). Nighttime temperatures record an average of 26.8°C (80.2°F) throughout September.Heat index
Throughout September, the heat index is appraised at a tropical 33°C (91.4°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity is 81%.Rainfall
September is the month with the most rainfall in Dakar. Rain falls for 13.3 days and accumulates 88mm (3.46") of precipitation.Sea temperature
The month with the warmest seawater is September, with an average sea temperature of 28.7°C (83.7°F).Note: Water activities including swimming and diving at temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed very pleasurable and enjoyable for extended periods, devoid of discomfort.
Daylight
The average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 06:57 and sunset at 19:21. On the last day of September, in Dakar, Senegal, sunrise is at 06:59 and sunset at 18:59 GMT.
Sunshine
In Dakar, the average sunshine in September is 8.6h.UV index
June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. 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. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dakar, Senegal
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is October (29°C).
The month with the lowest average high temperature is April (22.2°C).
- Average low temperature in September: 26.8°C
The month with the highest average low temperature is October (27.5°C).
The coldest month (with the lowest average low temperature) is March (20.2°C).
Average pressure in September
Dakar, Senegal
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in September
Dakar, Senegal
- Average wind speed in September: 15.2km/h
The windiest month (with the highest average wind speed) is February (27.2km/h).
The calmest month (with the lowest average wind speed) is September (15.2km/h).
Average humidity in September
Dakar, Senegal
- Average humidity in September: 81%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are January and December (59%).
Average rainfall in September
Dakar, Senegal
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is September (88mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Dakar, Senegal
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is August (14.2 days).
The months with the least rainy days are February and March (0.3 days).
Average sea temperature in September
Dakar, Senegal
- Average sea temperature in September: 28.7°C
The best month for swimming (with the highest average sea temperature) is September (28.7°C).
The coldest month (with the lowest average sea temperature) is March (19.9°C).
Average daylight in September /
Average sunshine in September
Dakar, Senegal
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 42min).
Average sunshine days in September
Dakar, Senegal
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is March (30.6 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Dakar, Senegal
- Average UV index in September: 7
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover in September
Dakar, Senegal
- Average cloud cover in September: 32
The month with the most cloud cover is August (Cloud cover 43).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Dakar, Senegal
- 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).
