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
Weather in September
Temperature
The arrival of September brings an average high-temperature of a still tropical 31.6°C (88.9°F), subtly diverging from August's 30.8°C (87.4°F). Throughout September, Endoja encounters an average temperature drop to a warm 23.2°C (73.8°F).Heat index
In September, the heat index is estimated at a life-threatening hot 45°C (113°F). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.In reference to the heat index, it's for places in shade and with a slight wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In September, the average relative humidity is 84%.Rainfall
In Endoja, in September, during 23.7 rainfall days, 152mm (5.98") of precipitation is typically 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 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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot does it get in Endoja in September?
What is the average humidity in September in Endoja?
How much does it rain in Endoja in September?
What is the average length of the day in September in Endoja?
What time are sunrise and sunset in September in Endoja?
How many hours of sunshine does Endoja have 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).
Endoja, Guinea-Bissau
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