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
The high-temperature average in September for Yumbi is a still hot 31.4°C (88.5°F), staying closely aligned with August's conditions. Yumbi records an average temperature drop to an agreeable 22.7°C (72.9°F) in September.Heat index
September's average heat index is estimated at an extremely hot 40°C (104°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Yumbi, the average relative humidity in September is 73%.Rainfall
In Yumbi, in September, during 27.5 rainfall days, 130mm (5.12") of precipitation is typically accumulated. Throughout the year, there are 276.3 rainfall days, and 1248mm (49.13") of precipitation is accumulated.Daylight
In Yumbi, the average length of the day in September is 12h and 6min.On the first day of September, sunrise is at 05:51 and sunset at 17:55. On the last day of the month, sunrise is at 05:39 and sunset at 17:47 WAT.
Sunshine
The average sunshine in September is 8.4h.UV index
The month with the lowest UV index is September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Yumbi, Democratic Republic of Congo
- Average high temperature in September: 31.4°C
The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is November (30°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is November (22.1°C).
Average pressure in September
Yumbi, Democratic Republic of Congo
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.3mbar).
Average wind speed in September
Yumbi, Democratic Republic of Congo
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).
Average humidity in September
Yumbi, Democratic Republic of Congo
- Average humidity in September: 73%
The months with the highest relative humidity are October and November (81%).
The month with the lowest relative humidity is July (57%).
Average rainfall in September
Yumbi, Democratic Republic of Congo
- Average rainfall in September: 130mm
The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days in September
Yumbi, Democratic Republic of Congo
- Average rainfall days in September: 27.5 days
The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is July (13.2 days).
Average daylight in September /
Average sunshine in September
Yumbi, Democratic Republic of Congo
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is January (Average sunshine: 10h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).
Average sunshine days in September
Yumbi, Democratic Republic of Congo
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is July (15.9 days).
The month with the least sunshine days is October (0.4 days).
Average UV index in September
Yumbi, Democratic Republic of Congo
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).
Average cloud cover in September
Yumbi, Democratic Republic of Congo
- Average cloud cover in September: 40
The month with the most cloud cover is October (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
Yumbi, Democratic Republic of Congo
- Average visibility in September: 9km
The months with the highest visibility are February, June, July and August (10km).
The months with the lowest visibility are October and November (8km).
