September weather forecastIcapuí, Brazil
September
Weather in September
September, the first month of the spring in Icapuí, is also a hot month, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 23.7°C (74.7°F).Temperature
The advent of September denotes an average high-temperature of a still tropical 31°C (87.8°F), subtly different from August's 30.9°C (87.6°F). Icapuí experiences an average low-temperature of 23.7°C (74.7°F) in the month of September.Heat index
In September, the average heat index is computed to be a very hot 37°C (98.6°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
August and September, with an average relative humidity of 68%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 2.5 days and typically collects 1mm (0.04") of precipitation.Daylight
In September, the average length of the day is 12h and 5min.On the first day of September in Icapuí, sunrise is at 05:28 and sunset at 17:30. On the last day of the month, sunrise is at 05:14 and sunset at 17:23 -03.
Sunshine
In Icapuí, the average sunshine in September is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Icapuí, Brazil
- Average high temperature in September: 31°C
The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is July (29.9°C).
- Average low temperature in September: 23.7°C
The months with the highest average low temperature are January, February and December (25.7°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in September
Icapuí, Brazil
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Icapuí, Brazil
- Average wind speed in September: 25.5km/h
The windiest month (with the highest average wind speed) is September (25.5km/h).
The calmest month (with the lowest average wind speed) is April (16.2km/h).
Average humidity in September
Icapuí, Brazil
- Average humidity in September: 68%
The months with the highest relative humidity are April and May (77%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in September
Icapuí, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is April (116mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days in September
Icapuí, Brazil
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is April (22.3 days).
The month with the least rainy days is September (2.5 days).
Average daylight in September /
Average sunshine in September
Icapuí, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 8h and 6min).
Average sunshine days in September
Icapuí, Brazil
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is September (25.3 days).
The month with the least sunshine days is April (6.3 days).
Average UV index in September
Icapuí, Brazil
- 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
Icapuí, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is April (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Icapuí, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
