September weather forecast
Mayamboula, Congo

September

Weather in September

The first month of the spring, September, is also a hot month in Mayamboula, Congo, with an average temperature varying between 22.9°C (73.2°F) and 32.5°C (90.5°F).

Temperature

Mayamboula's entry into September measures an average high-temperature of a still tropical 32.5°C (90.5°F), closely parallel to the preceding month. In Mayamboula, September nights witness a steady temperature drop to an agreeable 22.9°C (73.2°F).

Heat index

The average heat index in September is calculated to be a fiery hot 39°C (102.2°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital 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.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In September, the average relative humidity in Mayamboula is 62%.

Rainfall

In September, the rain falls for 17.1 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, there are 243.1 rainfall days, and 1109mm (43.66") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:01. On the last day of September, sunrise is at 05:46 and sunset at 17:54 WAT.

Sunshine

In Mayamboula, the average sunshine in September is 8.7h.

UV index

The months with the highest UV index are January, March through May, July through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 in September translates into these instructions:
Ward off overexposure. Defence against solar harm is crucial. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

How hot is it in September?
September temperatures vary between a high-temperature of 32.5°C (90.5°F) and a low-temperature of 22.9°C (73.2°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is calculated to be 39°C (102.2°F).
What is the average humidity in September?
The average relative humidity in September is 62%.
How much does it rain in September?
In Mayamboula, during September, the rain falls for 17.1 days and regularly aggregates up to 41mm (1.61") of precipitation.
What is the average length of the day in September?
In September, the average day length is 12h and 5min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 05:59 and sunset at 18:01. On the last day of the month, sunrise is at 05:46 and sunset at 17:54 WAT.
How long on average sun shines in September?
In Mayamboula, the average sunshine duration in September is 8.7h.
When is the highest UV index in Mayamboula?
The months with the highest UV index are January, March through May, July through September, with an average maximum UV index of 7.
How high is the UV index in September?
The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from 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
Mayamboula, Congo
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is November (29.5°C).

  • Average low temperature in September: 22.9°C

The month with the highest average low temperature is September (22.9°C).
The coldest months (with the lowest average low temperature) are June and July (20.8°C).

Average pressure in September
Mayamboula, Congo
  • Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is June (1013.1mbar).
The month with the lowest atmospheric pressure is February (1010.3mbar).

Average wind speed in September
Mayamboula, Congo
  • Average wind speed in September: 7.7km/h

The windiest month (with the highest average wind speed) is August (8.6km/h).
The calmest months (with the lowest average wind speed) are April and December (4.7km/h).

Average humidity in September
Mayamboula, Congo
  • Average humidity in September: 62%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Mayamboula, Congo
  • Average rainfall in September: 41mm

The wettest month (with the highest rainfall) is November (173mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in September
Mayamboula, Congo
  • Average rainfall days in September: 17.1 days

The month with the highest number of rainy days is December (29 days).
The month with the least rainy days is July (2.9 days).

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

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are June, October and November (Average sunshine: 7h and 0min).

Average sunshine days in September
Mayamboula, Congo
  • Average sunshine days in September: 10.6 days

The month with the most sunshine days is July (27.4 days).
The month with the least sunshine days is December (1.3 days).

Average UV index in September
Mayamboula, Congo
  • Average UV index in September: 7

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

Average cloud cover in September
Mayamboula, Congo
  • Average cloud cover in September: 36

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 19).

Average visibility in September
Mayamboula, Congo
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, March, April, November and December (8km).

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