September weather forecast
Ndiassane, Senegal

September

Weather in September

September, the first month of the autumn in Ndiassane, is also a moderately hot month, with an average temperature ranging between min 26.7°C (80.1°F) and max 29.8°C (85.6°F).

Temperature

The average high-temperature in September, at a still moderately hot 29.8°C (85.6°F), reveals a modest deviation from August's 29.1°C (84.4°F). The low temperature average in Ndiassane during September reflects a slight decrease to a still warm 26.7°C (80.1°F) from the day's peak.

Heat index

For September, the heat index is calculated to be a fiery hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

August and September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Ndiassane, Senegal, in September, during 13.9 rainfall days, 53mm (2.09") of precipitation is typically accumulated. Throughout the year, there are 51.8 rainfall days, and 182mm (7.17") of precipitation is accumulated.

Daylight

In Ndiassane, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 06:55 and sunset at 19:19. On the last day of the month, sunrise is at 06:56 and sunset at 18:57 GMT.

Sunshine

In September, the average sunshine in Ndiassane is 8.9h.

UV index

The months with the highest UV index are May through November, 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 high UV index of 7 in September translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

How hot is it in Ndiassane in September?
In September, the average high-temperature and low-temperature in Ndiassane are 29.8°C (85.6°F) and 26.7°C (80.1°F) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 37°C (98.6°F).
What are the most humid months in Ndiassane?
The months with the highest humidity in Ndiassane, Senegal, are August and September, with an average relative humidity of 78%.
What is the average humidity in September in Ndiassane?
In September, the average relative humidity is 78%.
How many days does it rain in September in Ndiassane?
In Ndiassane, during September, the rain falls for 13.9 days and regularly aggregates up to 53mm (2.09") of precipitation.
What is the average length of the day in September in Ndiassane?
In Ndiassane, the average day length in September is 12h and 13min.
What time are sunrise and sunset in September in Ndiassane?
On the first day of September in Ndiassane, Senegal, sunrise is at 06:55 and sunset at 19:19. On the last day of the month, sunrise is at 06:56 and sunset at 18:57 GMT.
How long on average sun shines in September in Ndiassane?
In September, the average sunshine duration is 8.9h.
What are the months with the highest UV index in Ndiassane?
May through November, with an average maximum UV index of 7, are months with the highest UV index.
How high is the UV index in September in Ndiassane?
The average daily maximum UV index in September in Ndiassane is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Ndiassane, Senegal
Average temperature in September
Ndiassane, Senegal
  • Average high temperature in September: 29.8°C

The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is April (27.3°C).

  • Average low temperature in September: 26.7°C

The month with the highest average low temperature is October (27.4°C).
The coldest month (with the lowest average low temperature) is February (20.4°C).

Average pressure in September - Ndiassane, Senegal
Average pressure in September
Ndiassane, 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 April (1011.2mbar).

Average wind speed in September - Ndiassane, Senegal
Average wind speed in September
Ndiassane, Senegal
  • Average wind speed in September: 13.2km/h

The windiest month (with the highest average wind speed) is April (23.4km/h).
The calmest month (with the lowest average wind speed) is September (13.2km/h).

Average humidity in September - Ndiassane, Senegal
Average humidity in September
Ndiassane, Senegal
  • Average humidity in September: 78%

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is January (45%).

Average rainfall in September - Ndiassane, Senegal
Average rainfall in September
Ndiassane, Senegal
  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).

Average rainfall days in September - Ndiassane, Senegal
Average rainfall days in September
Ndiassane, Senegal
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is August (14.4 days).
The month with the least rainy days is February (0.2 days).

Average daylight in September / Average sunshine in September - Ndiassane, Senegal
Average daylight in September /
Average sunshine in September
Ndiassane, Senegal
  • Average daylight in September: 12h and 1min

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 5min

The month with the most sunshine is May (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 8h and 18min).

Average sunshine days in September - Ndiassane, Senegal
Average sunshine days in September
Ndiassane, Senegal
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (13.2 days).

Average UV index in September - Ndiassane, Senegal
Average UV index in September
Ndiassane, Senegal
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).

Average cloud cover in September - Ndiassane, Senegal
Average cloud cover in September
Ndiassane, Senegal
  • Average cloud cover in September: 29

The month with the most cloud cover is August (Cloud cover 39).
The month with the least cloud cover is April (Cloud cover 6).

Average visibility in September - Ndiassane, Senegal
Average visibility in September
Ndiassane, 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).

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