September weather forecast
Gandon, Senegal

September

Weather in September

September, the first month of the autumn in Gandon, is still a tropical month, with an average temperature varying between 26.5°C (79.7°F) and 34.5°C (94.1°F).

Temperature

Shifting into September, Gandon records an average high-temperature of a still tropical 34.5°C (94.1°F), presenting minor fluctuations compared to the previous month. In Gandon, an average low-temperature of 26.5°C (79.7°F) is recorded during September nights.

Heat index

For September, the heat index is estimated at a blazing hot 47°C (116.6°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In September, the average relative humidity is 67%.

Rainfall

In September, the rain falls for 12.9 days. Throughout September, 47mm (1.85") of precipitation is accumulated. In Gandon, during the entire year, the rain falls for 46.6 days and collects up to 168mm (6.61") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 06:52 and sunset at 19:18. On the last day of the month, sunrise is at 06:55 and sunset at 18:55 GMT.

Sunshine

In September, the average sunshine in Gandon is 9.3h.

UV index

The months with the highest UV index in Gandon are September and October, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 8 in September transforms into the following instructions:
Always be careful, as unprotected skin and eyes might burn in no time. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

How hot does it get in Gandon in September?
The high-temperature in Gandon, Senegal, during September is 34.5°C (94.1°F) and the low-temperature is 26.5°C (79.7°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 47°C (116.6°F).
What is the average humidity in September in Gandon?
The average relative humidity in September is 67%.
How much does it rain in Gandon in September?
In Gandon, Senegal, during September, the rain falls for 12.9 days and regularly aggregates up to 47mm (1.85") of precipitation.
What is the average length of the day in September in Gandon?
In Gandon, the average day length in September is 12h and 13min.
What time are sunrise and sunset in September in Gandon?
In September, on the first day of the month, sunrise is at 06:52 and sunset at 19:18. On the last day of the month, in Gandon, sunrise is at 06:55 and sunset at 18:55 GMT.
How long on average sun shines in September in Gandon?
In September, the average sunshine duration in Gandon is 9.3h.
What are the months with the highest UV index in Gandon?
The months with the highest UV index are September and October, with an average maximum UV index of 8.
What is the UV index intensity in September in Gandon?
In September, the average daily maximum UV index in Gandon is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation.
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 - Gandon, Senegal
Average temperature in September
Gandon, Senegal
  • Average high temperature in September: 34.5°C

The warmest month (with the highest average high temperature) is October (37.2°C).
The month with the lowest average high temperature is January (32.8°C).

  • Average low temperature in September: 26.5°C

The month with the highest average low temperature is September (26.5°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).

Average pressure in September - Gandon, Senegal
Average pressure in September
Gandon, Senegal
  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is January (1013.8mbar).
The months with the lowest atmospheric pressure are April and May (1010.7mbar).

Average wind speed in September - Gandon, Senegal
Average wind speed in September
Gandon, Senegal
  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is April (18.1km/h).
The calmest month (with the lowest average wind speed) is September (11.9km/h).

Average humidity in September - Gandon, Senegal
Average humidity in September
Gandon, Senegal
  • Average humidity in September: 67%

The month with the highest relative humidity is August (68%).
The month with the lowest relative humidity is January (22%).

Average rainfall in September - Gandon, Senegal
Average rainfall in September
Gandon, Senegal
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is August (68mm).
The driest months (with the least rainfall) are January, February, May and December (0mm).

Average rainfall days in September - Gandon, Senegal
Average rainfall days in September
Gandon, Senegal
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is August (13.6 days).
The month with the least rainy days is January (0.2 days).

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

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 9h and 2min

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 48min).

Average sunshine days in September - Gandon, Senegal
Average sunshine days in September
Gandon, Senegal
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (14.7 days).

Average UV index in September - Gandon, Senegal
Average UV index in September
Gandon, Senegal
  • Average UV index in September: 8

The months with the highest UV index are September and October (UV index 8).
The month with the lowest UV index is December (UV index 6).

Average cloud cover in September - Gandon, Senegal
Average cloud cover in September
Gandon, Senegal
  • Average cloud cover in September: 24

The month with the most cloud cover is August (Cloud cover 32).
The months with the least cloud cover are April and May (Cloud cover 6).

Average visibility in September - Gandon, Senegal
Average visibility in September
Gandon, 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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