September weather forecastIguaba, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Iguaba, Brazil, with an average temperature varying between 18.5°C (65.3°F) and 29.9°C (85.8°F).Temperature
The arrival of September coincides with an average high-temperature of a still moderately hot 29.9°C (85.8°F), indicating a minimal shift from August's 28.3°C (82.9°F). In September, the nighttime temperature in Iguaba lowers to an average of 18.5°C (65.3°F).Heat index
September's heat index is computed to be a fiery hot 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Iguaba, the average relative humidity in September is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.1 days and typically collects 10mm (0.39") of precipitation.Daylight
In Iguaba, Brazil, the average length of the day in September is 12h and 3min.On the first day of September in Iguaba, sunrise is at 05:33 and sunset at 17:29. On the last day of the month, sunrise is at 05:15 and sunset at 17:27 -03.
Sunshine
In September, the average sunshine is 6.6h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during September leads to these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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 hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Iguaba, Brazil
- Average high temperature in September: 29.9°C
The warmest month (with the highest average high temperature) is November (33.4°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 18.5°C
The months with the highest average low temperature are February and March (21.8°C).
The coldest month (with the lowest average low temperature) is August (17.5°C).
Average pressure in September
Iguaba, Brazil
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is July (1017.4mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in September
Iguaba, Brazil
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is October (17.4km/h).
The calmest month (with the lowest average wind speed) is April (13.3km/h).
Average humidity in September
Iguaba, Brazil
- Average humidity in September: 72%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is November (63%).
Average rainfall in September
Iguaba, Brazil
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Iguaba, Brazil
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (8.9 days).
Average daylight in September /
Average sunshine in September
Iguaba, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is January (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 4h and 48min).
Average sunshine days in September
Iguaba, Brazil
- Average sunshine days in September: 11 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Iguaba, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in September
Iguaba, Brazil
- Average cloud cover in September: 49
The month with the most cloud cover is July (Cloud cover 62).
The months with the least cloud cover are November and December (Cloud cover 36).
Average visibility in September
Iguaba, Brazil
- Average visibility in September: 9km
The months with the highest visibility are February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July and August (8km).
