Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The advent of September sees the average high-temperature at a still hot 31.3°C (88.3°F), subtly shifted from August's 30.4°C (86.7°F). In September, Barreiro experiences an average nighttime temperature of 20.5°C (68.9°F).Heat index
During September, the heat index is appraised at a scorching 41°C (105.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Barreiro, during September, the rain falls for 22.3 days and regularly aggregates up to 45mm (1.77") of precipitation. In Barreiro, during the entire year, the rain falls for 296.9 days and collects up to 2322mm (91.42") of precipitation.Daylight
The average length of the day in September is 12h and 6min.On the first day of the month, sunrise is at 06:15 and sunset at 18:20. On the last day of September, sunrise is at 06:04 and sunset at 18:11 -05.
Sunshine
The average sunshine in September is 6.7h.UV index
February through May, July through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun 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
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Barreiro have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Barreiro have in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Barreiro, Ecuador
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is November (31.8°C).
The month with the lowest average high temperature is June (28.5°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is December (22.1°C).
The coldest month (with the lowest average low temperature) is August (20.1°C).
Average pressure in September
Barreiro, Ecuador
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is August (1014.2mbar).
The month with the lowest atmospheric pressure is February (1012.6mbar).
Average wind speed in September
Barreiro, Ecuador
- Average wind speed in September: 6.2km/h
The windiest months (with the highest average wind speed) are August and September (6.2km/h).
The calmest month (with the lowest average wind speed) is February (3.8km/h).
Average humidity in September
Barreiro, Ecuador
- Average humidity in September: 78%
The month with the highest relative humidity is May (89%).
The month with the lowest relative humidity is November (69%).
Average rainfall in September
Barreiro, Ecuador
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is March (487mm).
The driest months (with the least rainfall) are August and November (42mm).
Average rainfall days in September
Barreiro, Ecuador
- Average rainfall days in September: 22.3 days
The month with the highest number of rainy days is January (29.9 days).
The month with the least rainy days is November (15.2 days).
Average daylight in September /
Average sunshine in September
Barreiro, Ecuador
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is November (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Barreiro, Ecuador
- Average sunshine days in September: 5.4 days
The month with the most sunshine days is November (11.5 days).
The month with the least sunshine days is March (0.4 days).
Average UV index in September
Barreiro, Ecuador
- Average UV index in September: 6
The months with the highest UV index are February, March, April, May, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January and June (UV index 5).
Average cloud cover in September
Barreiro, Ecuador
- Average cloud cover in September: 51
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is November (Cloud cover 47).
Average visibility in September
Barreiro, Ecuador
- Average visibility in September: 8km
The months with the highest visibility are October, November and December (9km).
The months with the lowest visibility are January, February, March, April and May (7km).
