September weather forecastBrasil, Aruba
September
Weather in September
September introduces interesting shifts in Aruba's weather. There is a significant jump in rainfall to 57mm (2.24"), spread over 15.5 days, the highest in the last six months. Correspondingly, humidity drops to 80%, a subtle alteration mirroring the rainfall pattern for the month. Owing to these changes, September presents a slightly more humid climate without negating the feel of Aruba’s typical warm conditions.Temperature
Brasil experiences its highest average temperatures in September, reaching a peak of 29°C (84.2°F) and a minimum of 28.3°C (82.9°F).Heat index
September's average heat index is computed to be a fiery hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 80%.Rainfall
In Brasil, Aruba, in September, during 15.5 rainfall days, 57mm (2.24") of precipitation is typically accumulated. Throughout the year, there are 184.2 rainfall days, and 472mm (18.58") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 06:28 and sunset at 18:50. On the last day of September, sunrise is at 06:28 and sunset at 18:30 AST.
Sunshine
In Brasil, 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 in Brasil. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brasil, Aruba
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is September (29°C).
The month with the lowest average high temperature is February (26.4°C).
- Average low temperature in September: 28.3°C
The month with the highest average low temperature is September (28.3°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure in September
Brasil, Aruba
- Average pressure in September: 1010.1mbar
The month with the highest atmospheric pressure is January (1012.6mbar).
The month with the lowest atmospheric pressure is October (1009.6mbar).
Average wind speed in September
Brasil, Aruba
- Average wind speed in September: 29.1km/h
The windiest month (with the highest average wind speed) is June (37.5km/h).
The calmest month (with the lowest average wind speed) is November (26.1km/h).
Average humidity in September
Brasil, Aruba
- Average humidity in September: 80%
The month with the highest relative humidity is May (83%).
The month with the lowest relative humidity is November (78%).
Average rainfall in September
Brasil, Aruba
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in September
Brasil, Aruba
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is November (23.9 days).
The month with the least rainy days is June (10.6 days).
Average daylight in September /
Average sunshine in September
Brasil, Aruba
- Average daylight in September: 12h and 12min
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: 9h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in September
Brasil, Aruba
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is August (14.8 days).
The month with the least sunshine days is November (2.1 days).
Average UV index in September
Brasil, Aruba
- 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
Brasil, Aruba
- Average cloud cover in September: 26
The months with the most cloud cover are March and November (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in September
Brasil, Aruba
- 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).
