September weather forecastBucaur, Guinea-Bissau

September

Weather in September

The first month of the autumn, September, is also a hot month in Bucaur, Guinea-Bissau, with an average temperature ranging between min 23.2°C (73.8°F) and max 31.6°C (88.9°F).

Temperature

Upon the beginning of September, Bucaur's high-temperatures register at a still tropical 31.6°C (88.9°F), closely mirroring the preceding month. In the month of September, Bucaur records a consistent average low-temperature of 23.2°C (73.8°F).

Heat index

The average heat index in September is estimated at a life-threatening hot 45°C (113°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In September, the average relative humidity in Bucaur is 84%.

Rainfall

In Bucaur, in September, it is raining for 23.7 days, with typically 152mm (5.98") of accumulated precipitation. In Bucaur, during the entire year, the rain falls for 109.1 days and collects up to 654mm (25.75") of precipitation.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 06:51 and sunset at 19:12. On the last day of September, sunrise is at 06:50 and sunset at 18:52 GMT.

Sunshine

The average sunshine in September is 7h.

UV index

In Bucaur, Guinea-Bissau, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

During September, Bucaur experiences an average high-temperature of 31.6°C (88.9°F) and a low-temperature of 23.2°C (73.8°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 45°C (113°F).

The average relative humidity in September is 84%.

In Bucaur, in September, it is raining for 23.7 days, with typically 152mm (5.98") of accumulated precipitation.

The average day length in September is 12h and 11min.

On the first day of September, sunrise is at 06:51 and sunset at 19:12. On the last day of the month, sunrise is at 06:50 and sunset at 18:52 GMT.

In Bucaur, the average sunshine duration in September is 7h.

In Bucaur, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe 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
Bucaur, Guinea-Bissau

  • Average high temperature in September: 31.6°C

The warmest month (with the highest average high temperature) is April (41.3°C).
The month with the lowest average high temperature is August (30.8°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is June (25.3°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average pressure in September
Bucaur, Guinea-Bissau

  • Average pressure in September: 1012.1mbar

The month with the highest atmospheric pressure is July (1012.6mbar).
The month with the lowest atmospheric pressure is April (1009.7mbar).

Average wind speed in September
Bucaur, Guinea-Bissau

  • Average wind speed in September: 6.5km/h

The windiest month (with the highest average wind speed) is February (9.8km/h).
The calmest month (with the lowest average wind speed) is October (6.2km/h).

Average humidity in September
Bucaur, Guinea-Bissau

  • Average humidity in September: 84%

The month with the highest relative humidity is August (85%).
The month with the lowest relative humidity is January (20%).

Average rainfall in September
Bucaur, Guinea-Bissau

  • Average rainfall in September: 152mm

The wettest month (with the highest rainfall) is August (224mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).

Average rainfall days in September
Bucaur, Guinea-Bissau

  • Average rainfall days in September: 23.7 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is January (0.1 days).

Average daylight in September /
Average sunshine in September
Bucaur, Guinea-Bissau

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in September: 7h and 0min

The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).

Average sunshine days in September
Bucaur, Guinea-Bissau

  • Average sunshine days in September: 4.4 days

The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (2.5 days).

Average UV index in September
Bucaur, Guinea-Bissau

  • Average UV index in September: 7

The months with the highest UV index are March, April and May (UV index 8).
The month with the lowest UV index is August (UV index 6).

Average cloud cover in September
Bucaur, Guinea-Bissau

  • Average cloud cover in September: 51

The month with the most cloud cover is August (Cloud cover 62).
The months with the least cloud cover are March and April (Cloud cover 6).

Average visibility in September
Bucaur, Guinea-Bissau

  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (7km).