September weather forecastMafanco, Guinea-Bissau
September
Weather in September
September, the first month of the autumn in Mafanco, is still a hot month, with an average temperature ranging between min 23°C (73.4°F) and max 31.7°C (89.1°F).Temperature
The transition into September notes an average high-temperature of a still tropical 31.7°C (89.1°F), revealing a mild distinction from the 31°C (87.8°F) in August. Mafanco encounters an average low-temperature of 23°C (73.4°F) during September nights.Heat index
September's average heat index is estimated at a burning hot 45°C (113°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
The average relative humidity in September in Mafanco is 85%.Rainfall
In Mafanco, Guinea-Bissau, during September, the rain falls for 23.9 days and regularly aggregates up to 145mm (5.71") of precipitation. Throughout the year, there are 107.6 rainfall days, and 593mm (23.35") of precipitation is accumulated.Daylight
The average length of the day in September in Mafanco is 12h and 11min.On the first day of September in Mafanco, sunrise is at 06:47 and sunset at 19:08. On the last day of the month, sunrise is at 06:46 and sunset at 18:48 GMT.
Sunshine
In September, the average sunshine is 7.2h.UV index
In September, the average daily maximum UV index in Mafanco is 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mafanco, Guinea-Bissau
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is April (42.1°C).
The month with the lowest average high temperature is August (31°C).
- Average low temperature in September: 23°C
The month with the highest average low temperature is June (25.1°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).
Average pressure in September
Mafanco, 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 (1009.5mbar).
Average wind speed in September
Mafanco, Guinea-Bissau
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is February (9.4km/h).
The calmest month (with the lowest average wind speed) is October (6km/h).
Average humidity in September
Mafanco, Guinea-Bissau
- Average humidity in September: 85%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (19%).
Average rainfall in September
Mafanco, Guinea-Bissau
- Average rainfall in September: 145mm
The wettest month (with the highest rainfall) is August (206mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Mafanco, Guinea-Bissau
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is August (27.7 days).
The month with the least rainy days is January (0.1 days).
Average daylight in September /
Average sunshine in September
Mafanco, 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 12min
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 54min).
Average sunshine days in September
Mafanco, Guinea-Bissau
- Average sunshine days in September: 3.8 days
The month with the most sunshine days is January (30.9 days).
The month with the least sunshine days is August (2.5 days).
Average UV index in September
Mafanco, 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
Mafanco, Guinea-Bissau
- Average cloud cover in September: 54
The month with the most cloud cover is August (Cloud cover 63).
The month with the least cloud cover is March (Cloud cover 6).
Average visibility in September
Mafanco, 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).
