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
In September, Yendeh notes an average high-temperature of a still moderately hot 81.5°F, hardly different from the preceding month. In Yendeh, the expected average low-temperature for September is a pleasant 68.9°F.Heat index
During September, the heat index is estimated at a hot 91.4°F. Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The average relative humidity in September is 93%.Rainfall
In Yendeh, Sierra Leone, in September, during 30 rainfall days, 11.69" of precipitation is typically accumulated. Throughout the year, there are 252.4 rainfall days, and 67.09" of precipitation is accumulated.Daylight
In Yendeh, the average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 06:32 and sunset at 18:49. On the last day of the month, sunrise is at 06:29 and sunset at 18:32 GMT.
Sunshine
The average sunshine in September in Yendeh is 4.9h.UV index
In Yendeh, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
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?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Yendeh, Sierra Leone
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is March (97°F).
The month with the lowest average high temperature is August (79°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is April (71.8°F).
The coldest month (with the lowest average low temperature) is December (63.5°F).
Average pressure in September
Yendeh, Sierra Leone
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is March (29.84"Hg).
Average wind speed in September
Yendeh, Sierra Leone
- Average wind speed in September: 2.7mph
The windiest month (with the highest average wind speed) is April (3.4mph).
The calmest month (with the lowest average wind speed) is November (2.1mph).
Average humidity in September
Yendeh, Sierra Leone
- Average humidity in September: 93%
The month with the highest relative humidity is August (94%).
The month with the lowest relative humidity is January (49%).
Average rainfall in September
Yendeh, Sierra Leone
- Average rainfall in September: 11.69"
The wettest month (with the highest rainfall) is August (12.56").
The driest month (with the least rainfall) is December (0.28").
Average rainfall days in September
Yendeh, Sierra Leone
- Average rainfall days in September: 30 days
The month with the highest number of rainy days is August (30.8 days).
The months with the least rainy days are January and December (3.3 days).
Average daylight in September /
Average sunshine in September
Yendeh, Sierra Leone
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 0min).
Average sunshine days in September
Yendeh, Sierra Leone
- Average sunshine days in September: 0 days
The month with the most sunshine days is January (26.1 days).
The month with the least sunshine days is September (0 days).
Average UV index in September
Yendeh, Sierra Leone
- Average UV index in September: 6
The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are June, July, August and October (UV index 5).
Average cloud cover in September
Yendeh, Sierra Leone
- Average cloud cover in September: 78
The month with the most cloud cover is August (Cloud cover 87).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in September
Yendeh, Sierra Leone
- Average visibility in September: 3mi
The months with the highest visibility are January, February, March and December (6mi).
The months with the lowest visibility are August and September (3mi).
