September weather forecastOuidah, Benin
September
Weather in September
September witnesses a secondary peak in rainfall as it climbs to 89mm (3.5"). The month's temperatures start to rise once more, unveiling a heating trend. The cloud coverage begins to disperse, revealing more of the sun to Ouidah residents. The UV index stays at a constant 7, serving as a reminder to use protection when outside. The decrease in wind speed points to a quieter period.Temperature
The onset of September notes an average high-temperature of a still warm 28.2°C (82.8°F), subtly shifted from August's 27.4°C (81.3°F). September nighttime temperatures in Ouidah hover close to the daytime peak with an average of 23.9°C (75°F).Heat index
The heat index value for September is calculated to be a tropical 33°C (91.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The months with the highest humidity in Ouidah, Benin, are August and September, with an average relative humidity of 84%.Rainfall
In September, the rain falls for 24.5 days. Throughout September, 89mm (3.5") of precipitation is accumulated. Throughout the year, there are 220.8 rainfall days, and 678mm (26.69") of precipitation is accumulated.Snowfall
The only month with snowfall is September. The month with the most snowfall days in Ouidah, Benin, is September, when snow falls for 0.1 days.Daylight
In Ouidah, the average length of the day in September is 12h and 9min.On the first day of the month, sunrise is at 06:44 and sunset at 18:58. On the last day of September, sunrise is at 06:39 and sunset at 18:43 WAT.
Sunshine
The average sunshine in September in Ouidah, Benin, is 7.3h.UV index
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ouidah, Benin
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is March (32.2°C).
The month with the lowest average high temperature is August (27.4°C).
- Average low temperature in September: 23.9°C
The month with the highest average low temperature is April (26.9°C).
The coldest month (with the lowest average low temperature) is August (23.3°C).
Average pressure in September
Ouidah, Benin
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is July (1013.4mbar).
The months with the lowest atmospheric pressure are February and March (1009.4mbar).
Average wind speed in September
Ouidah, Benin
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is August (15.7km/h).
The calmest month (with the lowest average wind speed) is December (10.5km/h).
Average humidity in September
Ouidah, Benin
- Average humidity in September: 84%
The months with the highest relative humidity are August and September (84%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Ouidah, Benin
- Average rainfall in September: 89mm
The wettest month (with the highest rainfall) is June (125mm).
The driest months (with the least rainfall) are January and December (16mm).
Average rainfall days in September
Ouidah, Benin
- Average rainfall days in September: 24.5 days
The months with the highest number of rainy days are June and September (24.5 days).
The month with the least rainy days is January (8.8 days).
Average snowfall days in September
Ouidah, Benin
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Ouidah, Benin
- 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 48min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is January (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).
Average sunshine days in September
Ouidah, Benin
- Average sunshine days in September: 2.7 days
The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is September (2.7 days).
Average UV index in September
Ouidah, Benin
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Ouidah, Benin
- Average cloud cover in September: 51
The month with the most cloud cover is July (Cloud cover 56).
The month with the least cloud cover is December (Cloud cover 14).
Average visibility in September
Ouidah, Benin
- 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).
