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 denotes a minimal variation in the average high-temperature to a tropical 33.4°C (92.1°F) from August's 35.8°C (96.4°F). September generally records an average low-temperature of 22.1°C (71.8°F).Heat index
September's average heat index is estimated at a blisteringly hot 42°C (107.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Remember that heat index calculations are made for conditions in the shade with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Demba, the average relative humidity in September is 64%.Rainfall
In Demba, in September, during 17.9 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, there are 217.2 rainfall days, and 955mm (37.6") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 5min.On the first day of September in Demba, Democratic Republic of Congo, sunrise is at 06:30 and sunset at 18:31. On the last day of the month, sunrise is at 06:16 and sunset at 18:25 CAT.
Sunshine
The average sunshine in September is 9.4h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index?
What is the UV index reading in September?
Average temperature in September
Demba, Democratic Republic of Congo
- Average high temperature in September: 33.4°C
The warmest month (with the highest average high temperature) is August (35.8°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in September: 22.1°C
The months with the highest average low temperature are August and September (22.1°C).
The coldest month (with the lowest average low temperature) is June (19.9°C).
Average pressure in September
Demba, Democratic Republic of Congo
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.9mbar).
Average wind speed in September
Demba, Democratic Republic of Congo
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is June (6.1km/h).
The calmest month (with the lowest average wind speed) is December (4.6km/h).
Average humidity in September
Demba, Democratic Republic of Congo
- Average humidity in September: 64%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is July (40%).
Average rainfall in September
Demba, Democratic Republic of Congo
- Average rainfall in September: 42mm
The wettest months (with the highest rainfall) are November and December (157mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Demba, Democratic Republic of Congo
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is December (27.3 days).
The month with the least rainy days is July (2 days).
Average daylight in September /
Average sunshine in September
Demba, Democratic Republic of Congo
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in September
Demba, Democratic Republic of Congo
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is December (2.4 days).
Average UV index in September
Demba, Democratic Republic of Congo
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).
Average cloud cover in September
Demba, Democratic Republic of Congo
- Average cloud cover in September: 27
The month with the most cloud cover is December (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 13).
Average visibility in September
Demba, Democratic Republic of Congo
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are November and December (7km).
