September weather forecastAratuba, Brazil
September weather forecast for Aratuba, Brazil: The average heat index, which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 41°C (105.8°F). September and October are months with the least rain when the rain falls for 4.1 days and typically aggregates up to 3mm (0.12") of rain.
September
Weather in September
September, the first month of the spring in Aratuba, is still a tropical month, with an average temperature ranging between min 21.2°C (70.2°F) and max 33.5°C (92.3°F).Temperature
September experiences an average high-temperature of a still hot 33.5°C (92.3°F), barely different from August's 32.8°C (91°F). Aratuba's nights during September are marked by a pronounced drop from daytime temperatures, experiencing an average low of 21.2°C (70.2°F).Heat index
In September, the heat index is computed to be an extremely hot 41°C (105.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
September and October, with an average relative humidity of 61%, are the least humid months.Rainfall
September and October are months with the least rain when the rain falls for 4.1 days and typically aggregates up to 3mm (0.12") of rain.Daylight
In Aratuba, the average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 05:35 and sunset at 17:36. On the last day of the month, sunrise is at 05:21 and sunset at 17:30 -03.
Sunshine
The average sunshine in September is 9.3h.UV index
August through December, with an average maximum UV index of 7, are months with the highest UV index in Aratuba. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 7 during September translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aratuba, Brazil
- Average high temperature in September: 33.5°C
The warmest month (with the highest average high temperature) is October (34.1°C).
The month with the lowest average high temperature is May (29.8°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is December (23.1°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).
Average pressure in September
Aratuba, Brazil
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Aratuba, Brazil
- Average wind speed in September: 16.9km/h
The windiest month (with the highest average wind speed) is October (17.2km/h).
The calmest month (with the lowest average wind speed) is April (9.4km/h).
Average humidity in September
Aratuba, Brazil
- Average humidity in September: 61%
The month with the highest relative humidity is April (84%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in September
Aratuba, Brazil
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is March (158mm).
The driest months (with the least rainfall) are September and October (3mm).
Average rainfall days in September
Aratuba, Brazil
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is March (26.8 days).
The month with the least rainy days is September (4.1 days).
Average daylight in September /
Average sunshine in September
Aratuba, 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 18min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is March (Average sunshine: 5h and 54min).
Average sunshine days in September
Aratuba, Brazil
- Average sunshine days in September: 22.6 days
The months with the most sunshine days are September and October (22.6 days).
The month with the least sunshine days is March (3 days).
Average UV index in September
Aratuba, Brazil
- Average UV index in September: 7
The months with the highest UV index are August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and July (UV index 6).
Average cloud cover in September
Aratuba, Brazil
- Average cloud cover in September: 23
The month with the most cloud cover is March (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 23).
Average visibility in September
Aratuba, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (7km).
