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
Weather in September
Temperature
With the start of September, Yombiro measures an average high-temperature of a still moderately hot 27.5°C (81.5°F), not significantly differing from August's 26.1°C (79°F). Yombiro records an average nighttime low of 20.5°C (68.9°F) in September.Heat index
The heat index value during September is evaluated at a tropical 33°C (91.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Understanding the heat index involves considering values for shaded locales with light wind. 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 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In September, the average relative humidity is 93%.Rainfall
In Yombiro, in September, during 30 rainfall days, 297mm (11.69") of precipitation is typically accumulated. Throughout the year, in Yombiro, there are 252.4 rainfall days, and 1704mm (67.09") of precipitation is accumulated.Daylight
In Yombiro, 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
In Yombiro, Guinea, the average sunshine in September is 4.9h.UV index
In September, the average daily maximum UV index in Yombiro is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 6 in September translates into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the usual temperature for Yombiro in September?
What is the average humidity in September in Yombiro?
How many days does it rain in September in Yombiro?
What is the average length of the day in September in Yombiro?
When is the sunrise / sunset in September in Yombiro?
How many hours of sunshine does Yombiro have in September?
How high is the UV index in September in Yombiro?
Average temperature in September
Yombiro, Guinea
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is March (36.1°C).
The month with the lowest average high temperature is August (26.1°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is April (22.1°C).
The coldest month (with the lowest average low temperature) is December (17.5°C).
Average pressure in September
Yombiro, Guinea
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is March (1010.6mbar).
Average wind speed in September
Yombiro, Guinea
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is April (5.5km/h).
The calmest month (with the lowest average wind speed) is November (3.3km/h).
Average humidity in September
Yombiro, Guinea
- 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
Yombiro, Guinea
- Average rainfall in September: 297mm
The wettest month (with the highest rainfall) is August (319mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in September
Yombiro, Guinea
- 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
Yombiro, Guinea
- 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
Yombiro, Guinea
- 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
Yombiro, Guinea
- 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
Yombiro, Guinea
- 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
Yombiro, Guinea
- Average visibility in September: 5km
The months with the highest visibility are January, February, March and December (9km).
The months with the lowest visibility are August and September (5km).
Yombiro, Guinea
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