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 reports an average high-temperature of a still hot 31.6°C (88.9°F), slightly varied from August's 30.8°C (87.4°F). Nighttime temperatures hover around an average low of 23.2°C (73.8°F) in September.Heat index
In September, the average heat index is appraised at a life-threatening hot 45°C (113°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September is 84%.Rainfall
In September, the rain falls for 23.7 days. Throughout September, 152mm (5.98") of precipitation is accumulated. In Endoja, during the entire year, the rain falls for 109.1 days and collects up to 654mm (25.75") of precipitation.Daylight
In September, the average length of the day in Endoja is 12h and 12min.On the first day of the month, sunrise is at 06:52 and sunset at 19:13. On the last day of September, sunrise is at 06:52 and sunset at 18:53 GMT.
Sunshine
In Endoja, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 7 during September leads to these advisories:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Endoja have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Endoja?
Average temperature in September
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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
Endoja, 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).
