September weather forecast
Binar, Guinea-Bissau

September

Weather in September

September, the first month of the autumn in Binar, is a hot month, with an average temperature ranging between max 30.5°C (86.9°F) and min 25°C (77°F).

Temperature

The arrival of September sees an average high-temperature of a tropical 30.5°C (86.9°F), hardly diverging from August's 29.6°C (85.3°F). Throughout the nights in September, Binar experiences an average low-temperature of 25°C (77°F).

Heat index

The heat index for September is evaluated at an extremely hot 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Binar, the average relative humidity in September is 81%.

Rainfall

In Binar, during September, the rain falls for 20.7 days and regularly aggregates up to 132mm (5.2") of precipitation. Throughout the year, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.

Daylight

In Binar, 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, in Binar, Guinea-Bissau, sunrise is at 06:51 and sunset at 18:53 GMT.

Sunshine

In September, the average sunshine in Binar, Guinea-Bissau, is 7.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Binar. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Binar. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

How hot is it in Binar in September?
Binar in September has an average high-temperature of 30.5°C (86.9°F) and an average low-temperature of 25°C (77°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 40°C (104°F).
What is the average humidity in September in Binar?
In September, the average relative humidity in Binar, Guinea-Bissau, is 81%.
How much does it rain in Binar in September?
In September, in Binar, the rain falls for 20.7 days. Throughout September, 132mm (5.2") of precipitation is accumulated.
What is the average length of the day in September in Binar?
The average day length in September is 12h and 11min.
What time are sunrise and sunset in September in Binar?
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 18:53 GMT.
How many hours of sunshine does Binar have in September?
In September, the average sunshine duration in Binar is 7.5h.
When is the highest UV index in Binar?
The months with the highest UV index in Binar are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Binar?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Binar.
What is the UV index intensity in September in Binar?
The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to 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
Binar, Guinea-Bissau
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is March (35.5°C).
The month with the lowest average high temperature is August (29.6°C).

  • Average low temperature in September: 25°C

The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in September
Binar, Guinea-Bissau
  • Average pressure in September: 1012.2mbar

The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1010.1mbar).

Average wind speed in September
Binar, Guinea-Bissau
  • Average wind speed in September: 9.7km/h

The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (9km/h).

Average humidity in September
Binar, Guinea-Bissau
  • Average humidity in September: 81%

The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (32%).

Average rainfall in September
Binar, Guinea-Bissau
  • Average rainfall in September: 132mm

The wettest month (with the highest rainfall) is August (270mm).
The driest months (with the least rainfall) are January and February (0mm).

Average rainfall days in September
Binar, Guinea-Bissau
  • Average rainfall days in September: 20.7 days

The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is January (0.3 days).

Average daylight in September /
Average sunshine in September
Binar, 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 3min

The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).

Average sunshine days in September
Binar, Guinea-Bissau
  • Average sunshine days in September: 8 days

The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (2.9 days).

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

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

Average cloud cover in September
Binar, Guinea-Bissau
  • Average cloud cover in September: 46

The month with the most cloud cover is August (Cloud cover 57).
The months with the least cloud cover are March and April (Cloud cover 7).

Average visibility in September
Binar, Guinea-Bissau
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).

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