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
With the onset of September, a modest change to a hot 33.4°C (92.1°F) from August's 35.4°C (95.7°F) is noted in high-temperature. During September nights, Nioki records an average temperature of 24°C (75.2°F).Heat index
September's mean heat index is calculated to be an extremely hot 43°C (109.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for babies and toddlers. 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.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In September, the average relative humidity is 65%.Rainfall
In Nioki, Democratic Republic of Congo, during September, the rain falls for 19.6 days and regularly aggregates up to 64mm (2.52") of precipitation. In Nioki, during the entire year, the rain falls for 230.8 days and collects up to 972mm (38.27") of precipitation.Daylight
The average length of the day in September is 12h and 6min.On the first day of September in Nioki, sunrise is at 05:47 and sunset at 17:51. On the last day of the month, sunrise is at 05:35 and sunset at 17:43 WAT.
Sunshine
In Nioki, the average sunshine in September is 9.1h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 7 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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 much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September in Nioki?
How long on average sun shines in September?
What are the months with the highest UV index?
When is the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Nioki, Democratic Republic of Congo
- Average high temperature in September: 33.4°C
The warmest month (with the highest average high temperature) is August (35.4°C).
The month with the lowest average high temperature is November (30.8°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is August (25°C).
The coldest months (with the lowest average low temperature) are November and December (22.5°C).
Average pressure in September
Nioki, Democratic Republic of Congo
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is June (1011.7mbar).
The month with the lowest atmospheric pressure is February (1009.2mbar).
Average wind speed in September
Nioki, Democratic Republic of Congo
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is August (7km/h).
The calmest month (with the lowest average wind speed) is December (4.8km/h).
Average humidity in September
Nioki, Democratic Republic of Congo
- Average humidity in September: 65%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is July (47%).
Average rainfall in September
Nioki, Democratic Republic of Congo
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is November (150mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Nioki, Democratic Republic of Congo
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is November (26.6 days).
The month with the least rainy days is July (4.9 days).
Average daylight in September /
Average sunshine in September
Nioki, Democratic Republic of Congo
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is January (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 54min).
Average sunshine days in September
Nioki, Democratic Republic of Congo
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is November (2.5 days).
Average UV index in September
Nioki, Democratic Republic of Congo
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Nioki, Democratic Republic of Congo
- Average cloud cover in September: 34
The month with the most cloud cover is November (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 20).
Average visibility in September
Nioki, Democratic Republic of Congo
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is November (8km).
