September weather forecast
Dinguirai, Guinea-Bissau

September

Weather in September

The first month of the autumn, September, is a tropical month in Dinguirai, Guinea-Bissau, with temperature in the range of an average high of 30°C (86°F) and an average low of 22.9°C (73.2°F).

Temperature

Shifting into September, Dinguirai records an average high-temperature of a hot 30°C (86°F), presenting minor fluctuations compared to the previous month. During the nights in September, Dinguirai observes an average low-temperature of 22.9°C (73.2°F).

Heat index

For September, the heat index is calculated to be a blisteringly hot 40°C (104°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. 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. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in September is 88%.

Rainfall

In Dinguirai, Guinea-Bissau, during September, the rain falls for 27.9 days and regularly aggregates up to 205mm (8.07") of precipitation. Throughout the year, in Dinguirai, Guinea-Bissau, there are 165.4 rainfall days, and 1099mm (43.27") of precipitation is accumulated.

Daylight

In Dinguirai, the average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 06:45 and sunset at 19:05. On the last day of September, sunrise is at 06:44 and sunset at 18:46 GMT.

Sunshine

In Dinguirai, the average sunshine in September is 6.3h.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

How hot is September in Dinguirai?
September temperatures in Dinguirai vary between a high-temperature of 30°C (86°F) and a low-temperature of 22.9°C (73.2°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 40°C (104°F).
What is the average humidity in September in Dinguirai?
In September, the average relative humidity is 88%.
How much does it rain in Dinguirai in September?
In Dinguirai, Guinea-Bissau, in September, during 27.9 rainfall days, 205mm (8.07") of precipitation is typically accumulated.
What is the average length of the day in September in Dinguirai?
The average day length in September is 12h and 11min.
What time are sunrise and sunset in September in Dinguirai?
In September, on the first day of the month, sunrise is at 06:45 and sunset at 19:05. On the last day of the month, in Dinguirai, Guinea-Bissau, sunrise is at 06:44 and sunset at 18:46 GMT.
How many hours of sunshine does Dinguirai have in September?
In Dinguirai, the average sunshine duration in September is 6.3h.
When is the highest UV index in Dinguirai?
January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index in Dinguirai.
What is the UV index reading in September in Dinguirai?
In Dinguirai, the average daily maximum UV index in September is 7. A UV Index reading 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 - Dinguirai, Guinea-Bissau
Average temperature in September
Dinguirai, Guinea-Bissau
  • Average high temperature in September: 30°C

The warmest month (with the highest average high temperature) is March (39.3°C).
The month with the lowest average high temperature is August (28.7°C).

  • Average low temperature in September: 22.9°C

The month with the highest average low temperature is June (24.3°C).
The coldest month (with the lowest average low temperature) is February (18.8°C).

Average pressure in September - Dinguirai, Guinea-Bissau
Average pressure in September
Dinguirai, Guinea-Bissau
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is July (1013.5mbar).
The months with the lowest atmospheric pressure are March and April (1010.3mbar).

Average wind speed in September - Dinguirai, Guinea-Bissau
Average wind speed in September
Dinguirai, Guinea-Bissau
  • Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is May (8km/h).
The calmest month (with the lowest average wind speed) is November (4.5km/h).

Average humidity in September - Dinguirai, Guinea-Bissau
Average humidity in September
Dinguirai, Guinea-Bissau
  • Average humidity in September: 88%

The month with the highest relative humidity is August (89%).
The month with the lowest relative humidity is January (44%).

Average rainfall in September - Dinguirai, Guinea-Bissau
Average rainfall in September
Dinguirai, Guinea-Bissau
  • Average rainfall in September: 205mm

The wettest month (with the highest rainfall) is August (367mm).
The driest months (with the least rainfall) are January and February (0mm).

Average rainfall days in September - Dinguirai, Guinea-Bissau
Average rainfall days in September
Dinguirai, Guinea-Bissau
  • Average rainfall days in September: 27.9 days

The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is January (0 days).

Average daylight in September / Average sunshine in September - Dinguirai, Guinea-Bissau
Average daylight in September /
Average sunshine in September
Dinguirai, 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: 6h and 2min

The months with the most sunshine are January, February and March (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 36min).

Average sunshine days in September - Dinguirai, Guinea-Bissau
Average sunshine days in September
Dinguirai, Guinea-Bissau
  • Average sunshine days in September: 1.2 days

The month with the most sunshine days is January (30.5 days).
The month with the least sunshine days is August (1 days).

Average UV index in September - Dinguirai, Guinea-Bissau
Average UV index in September
Dinguirai, Guinea-Bissau
  • Average UV index in September: 7

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

Average cloud cover in September - Dinguirai, Guinea-Bissau
Average cloud cover in September
Dinguirai, Guinea-Bissau
  • Average cloud cover in September: 60

The month with the most cloud cover is August (Cloud cover 72).
The months with the least cloud cover are February and March (Cloud cover 9).

Average visibility in September - Dinguirai, Guinea-Bissau
Average visibility in September
Dinguirai, Guinea-Bissau
  • Average visibility in September: 7km

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

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