September weather forecast
Senquerem, Guinea-Bissau

September

Weather in September

September, the first month of the autumn in Senquerem, is still a hot month, with temperature in the range of an average low of 23.2°C (73.8°F) and an average high of 31.6°C (88.9°F).

Temperature

The advent of September brings an average high-temperature of a still hot 31.6°C (88.9°F), exhibiting minor difference from the previous month. During September nights, Senquerem records an average temperature of 23.2°C (73.8°F).

Heat index

Throughout September, the heat index is evaluated at a burning hot 45°C (113°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
Note that heat index values are valued for light wind and location in the shade. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree 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 are quite important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 84%.

Rainfall

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

Daylight

In September, the average length of the day is 12h and 12min.
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 06:51 and sunset at 18:52 GMT.

Sunshine

The average sunshine in September is 7h.

UV index

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

Is it hot during September?
In Senquerem, 31.6°C (88.9°F) is the average high-temperature and 23.2°C (73.8°F) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 45°C (113°F).
What is the average humidity in September?
In Senquerem, the average relative humidity in September is 84%.
How many days does it rain in September in Senquerem?
In September, the rain falls for 23.7 days. Throughout September, 152mm (5.98") of precipitation is accumulated.
What is the average length of the day in September?
In September, the average day length is 12h and 12min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:51 and sunset at 19:12. On the last day of the month, sunrise is at 06:51 and sunset at 18:52 GMT.
How long on average sun shines in September?
In Senquerem, the average sunshine duration in September is 7h.
What is the UV index reading in September?
In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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 - Senquerem, Guinea-Bissau
Average temperature in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average pressure in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average wind speed in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average humidity in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average rainfall in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average rainfall days in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average daylight in September /
Average sunshine in September
Senquerem, Guinea-Bissau
  • Average daylight in September: 12h and 1min

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 - Senquerem, Guinea-Bissau
Average sunshine days in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average UV index in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average cloud cover in September
Senquerem, 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 - Senquerem, Guinea-Bissau
Average visibility in September
Senquerem, 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).

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