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
Batau signifies an average high-temperature of a tropical 30.9°C (87.6°F) in September, closely mirroring the 29.8°C (85.6°F) of August. Batau's nighttime temperature in September drops to an average of 24.7°C (76.5°F).Heat index
The heat index value for September is estimated at a blisteringly hot 41°C (105.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.For clarity, heat index numbers account for light winds and areas under shade. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 80%.Rainfall
In Batau, during September, the rain falls for 20.5 days and regularly aggregates up to 133mm (5.24") of precipitation. In Batau, during the entire year, the rain falls for 103.1 days and collects up to 677mm (26.65") of precipitation.Daylight
In Batau, the average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 06:54 and sunset at 19:15. On the last day of September, sunrise is at 06:53 and sunset at 18:55 GMT.
Sunshine
In Batau, 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. 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: The UV index of 7 during September translates into the following guidance:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Batau in September?
What is the average humidity in September in Batau?
How much does it rain in Batau in September?
How many hours of daylight does Batau have in September?
When are sunrise and sunset in September in Batau?
How many hours of sunshine does Batau have in September?
What are the months with the highest UV index in Batau?
What is the UV index intensity in September in Batau?
Average temperature in September
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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
Batau, 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).
