September weather forecast
Okoyo, Congo

englishespañol中文
Share

Weather in September

September brings with it an uptick in rainfall, suggesting a slow return of the wet season. Okoyo receives a comparatively high rainfall of 130mm (5.12"), and temperatures remain between 22.7°C (72.9°F) and 31.4°C (88.5°F). The humidity also sees an increase, bringing more moisture into the air. As the month progresses, sunshine hours reduce but the days remain warm and humid. September, with its blend of wet and dry conditions, ushers in a seasonal change.

Temperature

Okoyo, Congo, observes an average high-temperature of a still tropical 31.4°C (88.5°F) in September, barely different from 32.9°C (91.2°F) in August. During September, the average low-temperature is a pleasant 22.7°C (72.9°F).

Heat index

Throughout September, the heat index is computed to be a blisteringly hot 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In Okoyo, in September, it is raining for 27.5 days, with typically 130mm (5.12") of accumulated precipitation. In Okoyo, during the entire year, the rain falls for 276.3 days and collects up to 1248mm (49.13") of precipitation.

Daylight

In September, the average length of the day in Okoyo is 12h and 6min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:02. On the last day of September, sunrise is at 05:45 and sunset at 17:53 WAT.

Sunshine

The average sunshine in September in Okoyo is 8.4h.

UV index

September is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
[Resources]

Frequently asked questions

How hot is September in Okoyo?

The high-temperature, in September, in Okoyo, is 31.4°C (88.5°F), while the low-temperature averages to 22.7°C (72.9°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 40°C (104°F).

What is the average humidity in September in Okoyo?

The average relative humidity in September in Okoyo, Congo, is 73%.

How many days does it rain in September in Okoyo?

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

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

In September, the average day length is 12h and 6min.

What time are sunrise and sunset in September in Okoyo?

On the first day of September in Okoyo, Congo, sunrise is at 05:56 and sunset at 18:02. On the last day of the month, sunrise is at 05:45 and sunset at 17:53 WAT.

How many hours of sunshine does Okoyo have in September?

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

What is the month with the lowest UV index in Okoyo?

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

How high is the UV index in September in Okoyo?

In Okoyo, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Okoyo, Congo

Average temperature in September - Okoyo, 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).

[Resources]

Average pressure in September
Okoyo, Congo

Average pressure in September - Okoyo, 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).

[Resources]

Average wind speed in September
Okoyo, Congo

Average wind speed in September - Okoyo, 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).

[Resources]

Average humidity in September
Okoyo, Congo

Average humidity in September - Okoyo, 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%).

[Resources]

Average rainfall in September
Okoyo, Congo

Average rainfall in September - Okoyo, 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).

[Resources]

Average rainfall days in September
Okoyo, Congo

Average rainfall days in September - Okoyo, 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).

[Resources]

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

Average daylight in September / Average sunshine in September - Okoyo, 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 0min).

  • 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).

[Resources]

Average sunshine days in September
Okoyo, Congo

Average sunshine days in September - Okoyo, 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).

[Resources]

Average UV index in September
Okoyo, Congo

Average UV index in September - Okoyo, 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).

[Resources]

Average cloud cover in September
Okoyo, Congo

Average cloud cover in September - Okoyo, 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).

[Resources]

Average visibility in September
Okoyo, Congo

Average visibility in September - Okoyo, 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).

[Resources]

Okoyo, Congo

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location