Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's commencement is accompanied by an average high-temperature of a still tropical 31.6°C (88.9°F), diverging marginally from August's 30.8°C (87.4°F). Bissabur witnesses a consistent average low-temperature of 23.2°C (73.8°F) throughout September.Heat index
September's heat index is evaluated at a blazing hot 45°C (113°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.Observations indicate that the heat index values are for shady locations with light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in September in Bissabur is 84%.Rainfall
In Bissabur, during September, the rain falls for 23.7 days and regularly aggregates up to 152mm (5.98") of precipitation. Throughout the year, there are 109.1 rainfall days, and 654mm (25.75") of precipitation is accumulated.Daylight
In Bissabur, the average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 06:52 and sunset at 19:13. On the last day of the month, sunrise is at 06:51 and sunset at 18:53 GMT.
Sunshine
In Bissabur, the average sunshine in September is 7h.UV index
In Bissabur, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Bissabur in September?
What is the average humidity in September in Bissabur?
How many days does it rain in September in Bissabur?
How many hours of daylight does Bissabur have in September?
What time are sunrise and sunset in September in Bissabur?
How long on average sun shines in September in Bissabur?
How high is the UV index in September in Bissabur?
Average temperature in September
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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
Bissabur, 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).
