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
The shift into September reveals an average high-temperature of a tropical 30.5°C (86.9°F), closely mirroring August's climate. In September, Botai encounters an average low-temperature of 25°C (77°F) during the night.Heat index
The heat index value during September is evaluated at a scorching 40°C (104°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
The average relative humidity in September in Botai is 81%.Rainfall
In Botai, in September, it is raining for 20.7 days, with typically 132mm (5.2") of accumulated precipitation. Throughout the year, in Botai, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.Daylight
In Botai, the average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 06:53 and sunset at 19:13. On the last day of September, sunrise is at 06:52 and sunset at 18:54 GMT.
Sunshine
In Botai, the average sunshine in September is 7.5h.UV index
The months with the highest UV index in Botai are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Botai. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 7 transforms into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Botai in September?
What is the average humidity in September in Botai?
How many days does it rain in September in Botai?
How many hours of daylight does Botai have in September?
What time are sunrise and sunset in September in Botai?
How many hours of sunshine does Botai have in September?
When is the highest UV index in Botai?
When is the lowest UV index in Botai?
How high is the UV index in September in Botai?
Average temperature in September
Botai, Guinea-Bissau
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is March (35.5°C).
The month with the lowest average high temperature is August (29.6°C).
- Average low temperature in September: 25°C
The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).
Average pressure in September
Botai, Guinea-Bissau
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1010.1mbar).
Average wind speed in September
Botai, Guinea-Bissau
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (9km/h).
Average humidity in September
Botai, Guinea-Bissau
- Average humidity in September: 81%
The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (32%).
Average rainfall in September
Botai, Guinea-Bissau
- Average rainfall in September: 132mm
The wettest month (with the highest rainfall) is August (270mm).
The driest months (with the least rainfall) are January and February (0mm).
Average rainfall days in September
Botai, Guinea-Bissau
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is January (0.3 days).
Average daylight in September /
Average sunshine in September
Botai, 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 30min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in September
Botai, Guinea-Bissau
- Average sunshine days in September: 8 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in September
Botai, Guinea-Bissau
- 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
Botai, Guinea-Bissau
- Average cloud cover in September: 46
The month with the most cloud cover is August (Cloud cover 57).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility in September
Botai, Guinea-Bissau
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
