September weather forecast
Girei, Nigeria

September

Weather in September

The first month of the autumn, September, is also a hot month in Girei, Nigeria, with an average temperature varying between 31.6°C (88.9°F) and 22.8°C (73°F).

Temperature

The average high-temperature during September is a still hot 31.6°C (88.9°F), almost matching the conditions of the preceding month. Girei's nighttime temperature during September is consistently averaged at an agreeable 22.8°C (73°F).

Heat index

The heat index for September is evaluated at an extremely hot 41°C (105.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Girei, in September, it is raining for 21.9 days, with typically 97mm (3.82") of accumulated precipitation. Throughout the year, there are 134.6 rainfall days, and 617mm (24.29") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:18. On the last day of September, sunrise is at 05:58 and sunset at 18:01 WAT.

Sunshine

In Girei, the average sunshine in September is 9.5h.

UV index

In Girei, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

Is it hot during September?
The high-temperature during September is 31.6°C (88.9°F) and the low-temperature is 22.8°C (73°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 41°C (105.8°F).
What is the average humidity in September?
In Girei, the average relative humidity in September is 76%.
How many days does it rain in September?
In Girei, during September, the rain falls for 21.9 days and regularly aggregates up to 97mm (3.82") of precipitation.
How many hours of daylight does Girei have in September?
The average day length in September is 12h and 10min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 06:00 and sunset at 18:18. On the last day of the month, sunrise is at 05:58 and sunset at 18:01 WAT.
How many hours of sunshine does Girei have in September?
The average sunshine duration in September is 9.5h.
What is the UV index intensity in September?
In September, the average daily maximum UV index in Girei is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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
Girei, Nigeria
  • Average high temperature in September: 31.6°C

The warmest month (with the highest average high temperature) is March (41.4°C).
The month with the lowest average high temperature is August (30.2°C).

  • Average low temperature in September: 22.8°C

The months with the highest average low temperature are April and May (27.2°C).
The coldest month (with the lowest average low temperature) is January (17.7°C).

Average pressure in September
Girei, Nigeria
  • Average pressure in September: 1011.5mbar

The month with the highest atmospheric pressure is August (1012mbar).
The month with the lowest atmospheric pressure is April (1007.2mbar).

Average wind speed in September
Girei, Nigeria
  • Average wind speed in September: 5.3km/h

The windiest month (with the highest average wind speed) is May (7.7km/h).
The calmest month (with the lowest average wind speed) is November (4.7km/h).

Average humidity in September
Girei, Nigeria
  • Average humidity in September: 76%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is February (17%).

Average rainfall in September
Girei, Nigeria
  • Average rainfall in September: 97mm

The wettest month (with the highest rainfall) is August (159mm).
The driest months (with the least rainfall) are January and December (0mm).

Average rainfall days in September
Girei, Nigeria
  • Average rainfall days in September: 21.9 days

The month with the highest number of rainy days is August (27.7 days).
The months with the least rainy days are January and December (0 days).

Average daylight in September /
Average sunshine in September
Girei, Nigeria
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is May (Average sunshine: 11h and 42min).
The month with the least sunshine is August (Average sunshine: 7h and 36min).

Average sunshine days in September
Girei, Nigeria
  • Average sunshine days in September: 6.6 days

The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (2.7 days).

Average UV index in September
Girei, Nigeria
  • Average UV index in September: 7

The months with the highest UV index are February, March, April and May (UV index 8).
The month with the lowest UV index is July (UV index 6).

Average cloud cover in September
Girei, Nigeria
  • Average cloud cover in September: 34

The month with the most cloud cover is August (Cloud cover 46).
The months with the least cloud cover are January and December (Cloud cover 2).

Average visibility in September
Girei, Nigeria
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).

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