September weather forecastOyala, Equatorial Guinea

September

Weather in September

September in Oyala heralds lower rainfall, evident by a monthly average of 164mm (6.46"), bestowing a sigh of relief after the long, damp summer. The exceptionally high humidity prevails, albeit with a gradual decrease. It's the dense cloud cover that steals the show, replacing vibrant sunshine with consistent shade. The less frequent rain showers do not hinder the city's hustle and bustle, resulting in an invigorated spirit. As the month wanes, the pleasant weather, under the obstructed sunlight, leaves Oyala in anticipation of the approaching dry season.

Temperature

The transition from August to September sees average high-temperatures adjusting to a still moderately hot 28.6°C (83.5°F), identical to the previous month. Oyala's temperature drops to an average low of 20.3°C (68.5°F) during the nights of September.

Heat index

In September, the average heat index is estimated at a sweltering 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 90%.

Rainfall

In Oyala, in September, during 28.3 rainfall days, 164mm (6.46") of precipitation is typically accumulated. Throughout the year, there are 317.5 rainfall days, and 1608mm (63.31") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:12 and sunset at 18:20. On the last day of September, in Oyala, sunrise is at 06:03 and sunset at 18:09 WAT.

Sunshine

The average sunshine in September in Oyala is 4.7h.

UV index

The months with the lowest UV index are June through November, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

The high-temperature, in September, in Oyala, is 28.6°C (83.5°F), while the low-temperature averages to 20.3°C (68.5°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is estimated at 36°C (96.8°F).

In September, the average relative humidity is 90%.

In Oyala, in September, it is raining for 28.3 days, with typically 164mm (6.46") of accumulated precipitation.

In Oyala, the average day length in September is 12h and 7min.

On the first day of September, sunrise is at 06:12 and sunset at 18:20. On the last day of the month, sunrise is at 06:03 and sunset at 18:09 WAT.

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

June through November, with an average maximum UV index of 5, are months with the lowest UV index.

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Oyala, Equatorial Guinea

  • Average high temperature in September: 28.6°C

The warmest month (with the highest average high temperature) is February (32.3°C).
The month with the lowest average high temperature is October (28.5°C).

  • Average low temperature in September: 20.3°C

The months with the highest average low temperature are February and April (21.1°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).

Average pressure in September
Oyala, Equatorial Guinea

  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is February (1010.2mbar).

Average wind speed in September
Oyala, Equatorial Guinea

  • Average wind speed in September: 4.4km/h

The windiest month (with the highest average wind speed) is August (4.7km/h).
The calmest months (with the lowest average wind speed) are May and November (3.5km/h).

Average humidity in September
Oyala, Equatorial Guinea

  • Average humidity in September: 90%

The month with the highest relative humidity is October (91%).
The month with the lowest relative humidity is January (78%).

Average rainfall in September
Oyala, Equatorial Guinea

  • Average rainfall in September: 164mm

The wettest month (with the highest rainfall) is October (227mm).
The driest month (with the least rainfall) is January (37mm).

Average rainfall days in September
Oyala, Equatorial Guinea

  • Average rainfall days in September: 28.3 days

The month with the highest number of rainy days is October (29.4 days).
The month with the least rainy days is December (20.5 days).

Average daylight in September /
Average sunshine in September
Oyala, Equatorial Guinea

  • Average daylight in September: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in September: 4h and 42min

The month with the most sunshine is January (Average sunshine: 8h and 18min).
The month with the least sunshine is October (Average sunshine: 4h and 30min).

Average sunshine days in September
Oyala, Equatorial Guinea

  • Average sunshine days in September: 0.3 days

The month with the most sunshine days is January (8.4 days).
The month with the least sunshine days is September (0.3 days).

Average UV index in September
Oyala, Equatorial Guinea

  • Average UV index in September: 5

The months with the highest UV index are January, February, March, April, May and December (UV index 6).
The months with the lowest UV index are June, July, August, September, October and November (UV index 5).

Average cloud cover in September
Oyala, Equatorial Guinea

  • Average cloud cover in September: 81

The months with the most cloud cover are September and October (Cloud cover 81).
The month with the least cloud cover is January (Cloud cover 54).

Average visibility in September
Oyala, Equatorial Guinea

  • Average visibility in September: 5km

The month with the highest visibility is January (7km).
The months with the lowest visibility are March, April, May, June, July, August, September, October and November (5km).