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 onset sees an average high-temperature of a still tropical 32.1°C (89.8°F), exhibiting a slight fluctuation from the previous month. Oco Maunde's average low-temperature in September is measured at a warm 23.2°C (73.8°F).Heat index
The heat index value for September is computed to be a burning hot 47°C (116.6°F). On guard: Heat exhaustion and heat cramps are predicted. Heatstroke is a potential hazard with continuous physical effort.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 84%.Rainfall
In Oco Maunde, during September, the rain falls for 23.3 days and regularly aggregates up to 142mm (5.59") of precipitation. Throughout the year, in Oco Maunde, there are 107.8 rainfall days, and 540mm (21.26") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 06:46 and sunset at 19:07. On the last day of September, sunrise is at 06:45 and sunset at 18:47 GMT.
Sunshine
In September, the average sunshine is 7.6h.UV index
In Oco Maunde, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What are the most humid months?
What is the average humidity in September in Oco Maunde?
How many days does it rain in September?
What is the average length of the day in September in Oco Maunde?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Oco Maunde, Guinea-Bissau
- Average high temperature in September: 32.1°C
The warmest month (with the highest average high temperature) is April (42.2°C).
The month with the lowest average high temperature is August (31.6°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is June (25.7°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).
Average pressure in September
Oco Maunde, Guinea-Bissau
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is July (1012.3mbar).
The month with the lowest atmospheric pressure is April (1009.2mbar).
Average wind speed in September
Oco Maunde, Guinea-Bissau
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is February (9.6km/h).
The calmest month (with the lowest average wind speed) is October (6.2km/h).
Average humidity in September
Oco Maunde, Guinea-Bissau
- Average humidity in September: 84%
The months with the highest relative humidity are August and September (84%).
The month with the lowest relative humidity is January (17%).
Average rainfall in September
Oco Maunde, Guinea-Bissau
- Average rainfall in September: 142mm
The wettest month (with the highest rainfall) is August (188mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Oco Maunde, Guinea-Bissau
- Average rainfall days in September: 23.3 days
The month with the highest number of rainy days is August (26.7 days).
The month with the least rainy days is January (0.1 days).
Average daylight in September /
Average sunshine in September
Oco Maunde, 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 4min
The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).
Average sunshine days in September
Oco Maunde, Guinea-Bissau
- Average sunshine days in September: 4 days
The month with the most sunshine days is January (30.9 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in September
Oco Maunde, Guinea-Bissau
- Average UV index in September: 7
The months with the highest UV index are March, April, May and June (UV index 8).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in September
Oco Maunde, Guinea-Bissau
- Average cloud cover in September: 50
The month with the most cloud cover is August (Cloud cover 58).
The months with the least cloud cover are March and April (Cloud cover 6).
Average visibility in September
Oco Maunde, 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).
