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
The shift from August to September is characterized by an average high-temperature of a tropical 30.9°C (87.6°F), not significantly different from the 29.8°C (85.6°F) of August. The low-temperature averages to a warm 24.7°C (76.5°F) during the nights of September.Heat index
In September, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
In Caiomete, the average relative humidity in September is 80%.Rainfall
In Caiomete, in September, during 20.5 rainfall days, 133mm (5.24") of precipitation is typically accumulated. Throughout the year, in Caiomete, there are 103.1 rainfall days, and 677mm (26.65") of precipitation is accumulated.Daylight
The average length of the day in September in Caiomete is 12h and 11min.On the first day of September, sunrise is at 06:54 and sunset at 19:15. On the last day of the month, sunrise is at 06:53 and sunset at 18:55 GMT.
Sunshine
The average sunshine in September is 7.3h.UV index
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Caiomete. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during September leads to these advisories:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
How hot is it in Caiomete in September?
What is the average humidity in September in Caiomete?
How many days does it rain in September in Caiomete?
How many hours of daylight does Caiomete have in September?
What time are sunrise and sunset in September in Caiomete?
How many hours of sunshine does Caiomete have in September?
When is the highest UV index in Caiomete?
What is the UV index intensity in September in Caiomete?
Average temperature in September
Caiomete, Guinea-Bissau
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is March (37.1°C).
The month with the lowest average high temperature is August (29.8°C).
- Average low temperature in September: 24.7°C
The month with the highest average low temperature is June (25.7°C).
The coldest month (with the lowest average low temperature) is January (21.2°C).
Average pressure in September
Caiomete, Guinea-Bissau
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is April (1010.2mbar).
Average wind speed in September
Caiomete, Guinea-Bissau
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is October (8.6km/h).
Average humidity in September
Caiomete, Guinea-Bissau
- Average humidity in September: 80%
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is January (26%).
Average rainfall in September
Caiomete, Guinea-Bissau
- Average rainfall in September: 133mm
The wettest month (with the highest rainfall) is August (254mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
Caiomete, Guinea-Bissau
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is January (0.1 days).
Average daylight in September /
Average sunshine in September
Caiomete, Guinea-Bissau
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 2min
The months with the most sunshine are March and April (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days in September
Caiomete, Guinea-Bissau
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in September
Caiomete, Guinea-Bissau
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Caiomete, Guinea-Bissau
- Average cloud cover in September: 47
The month with the most cloud cover is August (Cloud cover 58).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility in September
Caiomete, Guinea-Bissau
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
Caiomete, Guinea-Bissau
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