September weather forecast
Mayaki, Sierra Leone

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Weather in September

The first month of the autumn, September, is still a warm month in Mayaki, Sierra Leone, with an average temperature fluctuating between 24.4°C (75.9°F) and 28.1°C (82.6°F).

Temperature

The unfolding of September shows an average high-temperature of a still warm 28.1°C (82.6°F), indicating a slight variance from August's 27.3°C (81.1°F). The September nights in Mayaki, Sierra Leone, show a slight decrease to a mean low-temperature of 24.4°C (75.9°F).

Heat index

For September, the heat index is estimated at a hot 33°C (91.4°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In September, the average relative humidity in Mayaki is 85%.

Rainfall

In September, the rain falls for 28.6 days. Throughout September, 220mm (8.66") of precipitation is accumulated. Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 06:43 and sunset at 19:00. On the last day of the month, sunrise is at 06:40 and sunset at 18:43 GMT.

Sunshine

The average sunshine in September in Mayaki is 6.7h.

UV index

The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jan 26, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

How hot is it in Mayaki in September?

Mayaki in September has an average high-temperature of 28.1°C (82.6°F) and an average low-temperature of 24.4°C (75.9°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 33°C (91.4°F).

What is the average humidity in September in Mayaki?

In September, the average relative humidity in Mayaki, Sierra Leone, is 85%.

How much does it rain in Mayaki in September?

In Mayaki, in September, it is raining for 28.6 days, with typically 220mm (8.66") of accumulated precipitation.

What is the average length of the day in September in Mayaki?

In September, the average day length in Mayaki, Sierra Leone, is 12h and 10min.

When are sunrise and sunset in September in Mayaki?

On the first day of September in Mayaki, Sierra Leone, sunrise is at 06:43 and sunset at 19:00. On the last day of the month, sunrise is at 06:40 and sunset at 18:43 GMT.

How many hours of sunshine does Mayaki have in September?

In Mayaki, the average sunshine duration in September is 6.7h.

When is the highest UV index in Mayaki?

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Mayaki.

How high is the UV index in September in Mayaki?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Mayaki, Sierra Leone

Average temperature in September - Mayaki, Sierra Leone
  • Average high temperature in September: 28.1°C

The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).

  • Average low temperature in September: 24.4°C

The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).

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Average pressure in September
Mayaki, Sierra Leone

Average pressure in September - Mayaki, Sierra Leone
  • Average pressure in September: 1012.8mbar

The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).

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Average wind speed in September
Mayaki, Sierra Leone

Average wind speed in September - Mayaki, Sierra Leone
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).

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Average humidity in September
Mayaki, Sierra Leone

Average humidity in September - Mayaki, Sierra Leone
  • Average humidity in September: 85%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).

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Average rainfall in September
Mayaki, Sierra Leone

Average rainfall in September - Mayaki, Sierra Leone
  • Average rainfall in September: 220mm

The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).

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Average rainfall days in September
Mayaki, Sierra Leone

Average rainfall days in September - Mayaki, Sierra Leone
  • Average rainfall days in September: 28.6 days

The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).

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Average daylight in September /
Average sunshine in September
Mayaki, Sierra Leone

Average daylight in September / Average sunshine in September - Mayaki, Sierra Leone
  • Average daylight in September: 12h and 1min

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

  • Average sunshine in September: 6h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).

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Average sunshine days in September
Mayaki, Sierra Leone

Average sunshine days in September - Mayaki, Sierra Leone
  • Average sunshine days in September: 0.8 days

The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).

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Average UV index in September
Mayaki, Sierra Leone

Average UV index in September - Mayaki, Sierra Leone
  • Average UV index in September: 7

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

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Average cloud cover in September
Mayaki, Sierra Leone

Average cloud cover in September - Mayaki, Sierra Leone
  • Average cloud cover in September: 55

The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).

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Average visibility in September
Mayaki, Sierra Leone

Average visibility in September - Mayaki, Sierra Leone
  • 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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Mayaki, Sierra Leone

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