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 snowfall 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 transition into September marks the average high-temperature at a still tropical 30.8°C (87.4°F), differing minimally from August's 31.2°C (88.2°F). Djolu experiences a steady low-temperature of 20.5°C (68.9°F) throughout September.Heat index
In September, the average heat index is estimated at a blisteringly hot 41°C (105.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 27 days. Throughout September, 140mm (5.51") of precipitation is accumulated. Throughout the year, there are 262.8 rainfall days, and 1177mm (46.34") of precipitation is accumulated.Snowfall
September is the only month when snow falls. September has the most snowfall days of the year. Snow falls for 0.1 days.Daylight
In Djolu, the average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 05:26 and sunset at 17:33. On the last day of September, in Djolu, sunrise is at 05:16 and sunset at 17:23 WAT.
Sunshine
In Djolu, Democratic Republic of Congo, the average sunshine in September is 8h.UV index
February, May, June, August through November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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 in Djolu?
How much does it rain in September?
When does it snow the most?
When does it start to snow?
How many hours of daylight does Djolu have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Djolu have in September?
What are the months with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Djolu, Democratic Republic of Congo
- Average high temperature in September: 30.8°C
The warmest months (with the highest average high temperature) are January and February (34.8°C).
The month with the lowest average high temperature is October (30.1°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is February (22.2°C).
The coldest month (with the lowest average low temperature) is September (20.5°C).
Average pressure in September
Djolu, Democratic Republic of Congo
- Average pressure in September: 1011.1mbar
The months with the highest atmospheric pressure are June and July (1011.6mbar).
The month with the lowest atmospheric pressure is February (1008.1mbar).
Average wind speed in September
Djolu, Democratic Republic of Congo
- Average wind speed in September: 3.7km/h
The windiest month (with the highest average wind speed) is March (4.8km/h).
The calmest month (with the lowest average wind speed) is June (3.6km/h).
Average humidity in September
Djolu, Democratic Republic of Congo
- Average humidity in September: 82%
The month with the highest relative humidity is October (85%).
The month with the lowest relative humidity is January (57%).
Average rainfall in September
Djolu, Democratic Republic of Congo
- Average rainfall in September: 140mm
The wettest month (with the highest rainfall) is October (187mm).
The driest month (with the least rainfall) is January (28mm).
Average rainfall days in September
Djolu, Democratic Republic of Congo
- Average rainfall days in September: 27 days
The month with the highest number of rainy days is October (27.3 days).
The month with the least rainy days is January (10.1 days).
Average snowfall days in September
Djolu, Democratic Republic of Congo
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Djolu, Democratic Republic of Congo
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is January (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).
Average sunshine days in September
Djolu, Democratic Republic of Congo
- Average sunshine days in September: 1.8 days
The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is September (1.8 days).
Average UV index in September
Djolu, Democratic Republic of Congo
- Average UV index in September: 6
The months with the highest UV index are January, March, April, July and December (UV index 7).
The months with the lowest UV index are February, May, June, August, September, October and November (UV index 6).
Average cloud cover in September
Djolu, Democratic Republic of Congo
- Average cloud cover in September: 49
The month with the most cloud cover is October (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 22).
Average visibility in September
Djolu, Democratic Republic of Congo
- Average visibility in September: 7km
The month with the highest visibility is January (10km).
The months with the lowest visibility are September, October and November (7km).
