September weather forecastAchi, Nigeria

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Achi, Nigeria, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 22.7°C (72.9°F).

Temperature

The weather during September records an average high-temperature of a still warm 29°C (84.2°F), closely mirroring the preceding month. The temperature lowers to an average of 22.7°C (72.9°F) during September nights.

Heat index

In September, the average heat index is computed to be a fiery hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

July and September, with an average relative humidity of 88%, are the most humid months in Achi.

Rainfall

The month with the most rainfall is September, when the rain falls for 29.3 days and typically aggregates up to 299mm (11.77") of precipitation.

Daylight

In September, the average length of the day in Achi is 12h and 9min.
On the first day of September in Achi, sunrise is at 06:23 and sunset at 18:37. On the last day of the month, sunrise is at 06:18 and sunset at 18:22 WAT.

Sunshine

In September, the average sunshine is 4.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in September, in Achi, is 29°C (84.2°F), while the average low-temperature is 22.7°C (72.9°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 37°C (98.6°F).

July and September, with an average relative humidity of 88%, are most humid months in Achi.

In September, the average relative humidity in Achi, Nigeria, is 88%.

The month with the most rainfall in Achi, Nigeria, is September, when the rain falls for 29.3 days and typically aggregates up to 299mm (11.77") of precipitation.

In September, in Achi, the rain falls for 29.3 days. Throughout September, 299mm (11.77") of precipitation is accumulated.

In Achi, Nigeria, the average day length in September is 12h and 9min.

In September, on the first day of the month, sunrise is at 06:23 and sunset at 18:37. On the last day of the month, sunrise is at 06:18 and sunset at 18:22 WAT.

In September, the average sunshine duration in Achi, Nigeria, is 4.7h.

In Achi, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

28.8°C

29°C

30.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.8km/h

6.1km/h

5.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.7

0.5

1.8

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Achi, Nigeria

Average high temperature in September: 29°C

The warmest month (with the highest average high temperature) is February (36.3°C).
The months with the lowest average high temperature are July and August (28.8°C).

Average low temperature in September: 22.7°C

The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).

Average pressure in September
Achi, Nigeria

Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is July (1013.5mbar).
The months with the lowest atmospheric pressure are February and March (1009.5mbar).

Average wind speed in September
Achi, Nigeria

Average wind speed in September: 5.5km/h

The windiest month (with the highest average wind speed) is August (6.2km/h).
The calmest month (with the lowest average wind speed) is November (4.6km/h).

Average humidity in September
Achi, Nigeria

Average humidity in September: 88%

The months with the highest relative humidity are July and September (88%).
The month with the lowest relative humidity is January (55%).

Average rainfall in September
Achi, Nigeria

Average rainfall in September: 299mm

The wettest month (with the highest rainfall) is September (299mm).
The driest month (with the least rainfall) is December (12mm).

Average rainfall days in September
Achi, Nigeria

Average rainfall days in September: 29.3 days

The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is December (7.6 days).

Average daylight in September /
Average sunshine in September
Achi, Nigeria

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: 4h and 42min

The months with the most sunshine are January and December (Average sunshine: 9h and 30min).
The month with the least sunshine is August (Average sunshine: 3h and 54min).

Average sunshine days in September
Achi, Nigeria

Average sunshine days in September: 0.5 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is September (0.5 days).

Average UV index in September
Achi, Nigeria

Average UV index in September: 6

The months with the highest UV index are January, February, March, April, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 5).

Average cloud cover in September
Achi, Nigeria

Average cloud cover in September: 75

The month with the most cloud cover is August (Cloud cover 78).
The month with the least cloud cover is December (Cloud cover 19).

Average visibility in September
Achi, Nigeria

Average visibility in September: 6km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are July and September (6km).