September weather forecastCaiçara do Rio do Vento, Brazil
September
Weather in September
September, the first month of the spring in Caiçara do Rio do Vento, is still a warm month, with an average temperature fluctuating between 29.7°C (85.5°F) and 22.6°C (72.7°F).Temperature
Caiçara do Rio do Vento's average high-temperature marks a still warm 29.7°C (85.5°F) with the advent of September, closely mirroring that of the preceding month. Caiçara do Rio do Vento's temperature tends to fall to an average low of 22.6°C (72.7°F) during the nights of September.Heat index
For September, the heat index is calculated to be a sweltering 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 7.6 days and accumulates 5mm (0.2") of precipitation.Daylight
In Caiçara do Rio do Vento, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:23 and sunset at 17:24. On the last day of September, sunrise is at 05:09 and sunset at 17:18 -03.
Sunshine
In Caiçara do Rio do Vento, Brazil, the average sunshine in September is 7.8h.UV index
The months with the highest UV index are January through June, August through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 7 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Caiçara do Rio do Vento, Brazil
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is March (31.7°C).
The month with the lowest average high temperature is July (28.7°C).
- Average low temperature in September: 22.6°C
The months with the highest average low temperature are February and March (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.1°C).
Average pressure in September
Caiçara do Rio do Vento, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is August (1014.9mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).
Average wind speed in September
Caiçara do Rio do Vento, Brazil
- Average wind speed in September: 23.2km/h
The windiest month (with the highest average wind speed) is September (23.2km/h).
The calmest month (with the lowest average wind speed) is April (16km/h).
Average humidity in September
Caiçara do Rio do Vento, Brazil
- Average humidity in September: 73%
The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is November (69%).
Average rainfall in September
Caiçara do Rio do Vento, Brazil
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is March (86mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in September
Caiçara do Rio do Vento, Brazil
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is September (7.6 days).
Average daylight in September /
Average sunshine in September
Caiçara do Rio do Vento, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 7h and 48min
The months with the most sunshine are October and November (Average sunshine: 8h and 0min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in September
Caiçara do Rio do Vento, Brazil
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in September
Caiçara do Rio do Vento, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 6).
Average cloud cover in September
Caiçara do Rio do Vento, Brazil
- Average cloud cover in September: 41
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 38).
Average visibility in September
Caiçara do Rio do Vento, 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).
