September weather forecast
Mayahi, Niger

September

Weather in September

September marks a decrease in rainfall, significantly dropping to 18mm (0.71") from August’s high. The month is further characterized by a dominant feature, the rising wind gust that peaks at 15.5km/h (9.6mph), bringing a refreshing breeze in the atmosphere. A notable reduction of cloud cover marks the transition towards the end of the rainy season. When combined with the generous daylight hours, travelers may find this an opportune time to explore Mayahi’s outdoor attractions without the extensive rain from previous months.

Temperature

The onset of September notes an average high-temperature of a very hot 35.8°C (96.4°F), subtly shifted from August's 33°C (91.4°F). Mayahi, during September, witnesses an average low-temperature of 25.8°C (78.4°F).

Heat index

The heat index in September is evaluated at a scorching 43°C (109.4°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Mayahi, the average relative humidity in September is 50%.

Rainfall

In Mayahi, in September, during 6.9 rainfall days, 18mm (0.71") of precipitation is typically accumulated. Throughout the year, in Mayahi, there are 49.9 rainfall days, and 233mm (9.17") of precipitation is accumulated.

Snowfall

September is the only month when snow falls in Mayahi. The month with the most snowfall days is September, when snow falls for 0.1 days.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:40. On the last day of September, sunrise is at 06:18 and sunset at 18:19 WAT.

Sunshine

In Mayahi, the average sunshine in September is 9.7h.

UV index

March through June and September, with an average maximum UV index of 8, are months with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 8 in September converts into the following recommendations:
Skin and eyes are vulnerable without protection. Ensure you always take precautions. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

How hot does it get in September?
The high-temperature, in September, in Mayahi, records 35.8°C (96.4°F), while the low-temperature is 25.8°C (78.4°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 43°C (109.4°F).
What is the average humidity in September?
In September, the average relative humidity is 50%.
How much does it rain in September?
In Mayahi, during September, the rain falls for 6.9 days and regularly aggregates up to 18mm (0.71") of precipitation.
What is the snowiest month?
The month with the most snowfall days is September, when snow falls for 0.1 days.
When does it start snowing?
September is the first month it typically snows. Throughout September, there are 0.1 snowfall days.
How many hours of daylight does Mayahi have in September?
In Mayahi, the average day length in September is 12h and 13min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 06:17 and sunset at 18:40. On the last day of the month, sunrise is at 06:18 and sunset at 18:19 WAT.
How many hours of sunshine does Mayahi have in September?
In Mayahi, the average sunshine duration in September is 9.7h.
What are the months with the highest UV index in Mayahi?
The months with the highest UV index are March through June and September, with an average maximum UV index of 8.
What is the UV index reading in September?
In Mayahi, the average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to 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 snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Mayahi, Niger
  • Average high temperature in September: 35.8°C

The warmest month (with the highest average high temperature) is April (41.6°C).
The month with the lowest average high temperature is December (31.9°C).

  • Average low temperature in September: 25.8°C

The month with the highest average low temperature is June (28.9°C).
The coldest month (with the lowest average low temperature) is January (14.8°C).

Average pressure in September
Mayahi, Niger
  • Average pressure in September: 1010.6mbar

The month with the highest atmospheric pressure is January (1013.7mbar).
The month with the lowest atmospheric pressure is April (1007.6mbar).

Average wind speed in September
Mayahi, Niger
  • Average wind speed in September: 10.8km/h

The windiest month (with the highest average wind speed) is December (16.1km/h).
The calmest month (with the lowest average wind speed) is October (10.3km/h).

Average humidity in September
Mayahi, Niger
  • Average humidity in September: 50%

The month with the highest relative humidity is August (60%).
The month with the lowest relative humidity is March (12%).

Average rainfall in September
Mayahi, Niger
  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is August (106mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).

Average rainfall days in September
Mayahi, Niger
  • Average rainfall days in September: 6.9 days

The month with the highest number of rainy days is August (15.4 days).
The months with the least rainy days are January, February, November and December (0 days).

Average snowfall days in September
Mayahi, Niger
  • 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
Mayahi, Niger
  • Average daylight in September: 12h and 1min

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 18min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is February (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 8h and 36min).

Average sunshine days in September
Mayahi, Niger
  • Average sunshine days in September: 21.5 days

The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (13.9 days).

Average UV index in September
Mayahi, Niger
  • Average UV index in September: 8

The months with the highest UV index are March, April, May, June and September (UV index 8).
The months with the lowest UV index are January and December (UV index 6).

Average cloud cover in September
Mayahi, Niger
  • Average cloud cover in September: 18

The month with the most cloud cover is August (Cloud cover 32).
The months with the least cloud cover are November and December (Cloud cover 3).

Average visibility in September
Mayahi, Niger
  • 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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