September weather forecast
Otali, Congo

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Weather in September

September, the first month of the spring in Otali, is also a hot month, with temperature in the range of an average high of 31.4°C (88.5°F) and an average low of 22.7°C (72.9°F).

Temperature

In September, Otali experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 31.4°C (88.5°F), closely mirroring the climate in August. Otali observes an average low-temperature of 22.7°C (72.9°F) during September nights.

Heat index

The average heat index in September is calculated to be a blisteringly hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Otali, the average relative humidity in September is 73%.

Rainfall

In Otali, during September, the rain falls for 27.5 days and regularly aggregates up to 130mm (5.12") of precipitation. In Otali, during the entire year, the rain falls for 276.3 days and collects up to 1248mm (49.13") of precipitation.

Daylight

In Otali, Congo, the average length of the day in September is 12h and 7min.
On the first day of September in Otali, sunrise is at 05:54 and sunset at 17:59. On the last day of the month, sunrise is at 05:43 and sunset at 17:50 WAT.

Sunshine

In Otali, the average sunshine in September is 8.4h.

UV index

September is the month with the lowest UV index in Otali, Congo, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 6, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is September in Otali?

September temperatures in Otali, Congo, vary between a high-temperature of 31.4°C (88.5°F) and a low-temperature of 22.7°C (72.9°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 40°C (104°F).

What is the average humidity in September in Otali?

The average relative humidity in September is 73%.

How many days does it rain in September in Otali?

In September, the rain falls for 27.5 days. Throughout September, 130mm (5.12") of precipitation is accumulated.

How many hours of daylight does Otali have in September?

The average day length in September in Otali, Congo, is 12h and 7min.

When is the sunrise / sunset in September in Otali?

In September, on the first day of the month, sunrise is at 05:54 and sunset at 17:59. On the last day of the month, in Otali, Congo, sunrise is at 05:43 and sunset at 17:50 WAT.

How long on average sun shines in September in Otali?

In Otali, Congo, the average sunshine duration in September is 8.4h.

When is the lowest UV index in Otali?

September is the month with the lowest UV index, with an average maximum UV index of 6.

How high is the UV index in September in Otali?

The average daily maximum UV index in September in Otali, Congo, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Otali, Congo

Average temperature in September - Otali, Congo
  • Average high temperature in September: 31.4°C

The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is November (30°C).

  • Average low temperature in September: 22.7°C

The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is November (22.1°C).

Average pressure in September
Otali, Congo

Average pressure in September - Otali, Congo
  • Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.3mbar).

Average wind speed in September
Otali, Congo

Average wind speed in September - Otali, Congo
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).

Average humidity in September
Otali, Congo

Average humidity in September - Otali, Congo
  • Average humidity in September: 73%

The months with the highest relative humidity are October and November (81%).
The month with the lowest relative humidity is July (57%).

Average rainfall in September
Otali, Congo

Average rainfall in September - Otali, Congo
  • Average rainfall in September: 130mm

The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is July (21mm).

Average rainfall days in September
Otali, Congo

Average rainfall days in September - Otali, Congo
  • Average rainfall days in September: 27.5 days

The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is July (13.2 days).

Average daylight in September /
Average sunshine in September
Otali, Congo

Average daylight in September / Average sunshine in September - Otali, Congo
  • Average daylight in September: 12h and 1min

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

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is January (Average sunshine: 10h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).

Average sunshine days in September
Otali, Congo

Average sunshine days in September - Otali, Congo
  • Average sunshine days in September: 1.4 days

The month with the most sunshine days is July (15.9 days).
The month with the least sunshine days is October (0.4 days).

Average UV index in September
Otali, Congo

Average UV index in September - Otali, Congo
  • Average UV index in September: 6

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

Average cloud cover in September
Otali, Congo

Average cloud cover in September - Otali, Congo
  • Average cloud cover in September: 40

The month with the most cloud cover is October (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in September
Otali, Congo

Average visibility in September - Otali, Congo
  • Average visibility in September: 9km

The months with the highest visibility are February, June, July and August (10km).
The months with the lowest visibility are October and November (8km).

Otali, Congo

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