September weather forecast
Ventanas, Ecuador

September

Weather in September

September, the first month of the spring in Ventanas, is still a tropical month, with an average temperature ranging between max 31.3°C (88.3°F) and min 20.5°C (68.9°F).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 31.3°C (88.3°F), from a not significantly different 30.4°C (86.7°F). An average nighttime temperature of 20.5°C (68.9°F) is recorded during September.

Heat index

September's mean heat index is estimated at a blisteringly hot 41°C (105.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight 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 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. 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 Ventanas, in September, it is raining for 22.3 days, with typically 45mm (1.77") of accumulated precipitation. In Ventanas, during the entire year, the rain falls for 296.9 days and collects up to 2322mm (91.42") of precipitation.

Daylight

In September, the average length of the day is 12h and 6min.
On the first day of September, sunrise is at 06:15 and sunset at 18:20. On the last day of the month, sunrise is at 06:03 and sunset at 18:11 -05.

Sunshine

In Ventanas, 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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during September leads to these advisories:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is it in September?
The high-temperature during September is 31.3°C (88.3°F) and the low-temperature is 20.5°C (68.9°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 41°C (105.8°F).
What is the average humidity in September?
In September, the average relative humidity is 78%.
How many days does it rain in September?
In Ventanas, in September, during 22.3 rainfall days, 45mm (1.77") of precipitation is typically accumulated.
How many hours of daylight does Ventanas have in September?
In September, the average day length is 12h and 6min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:15 and sunset at 18:20. On the last day of the month, sunrise is at 06:03 and sunset at 18:11 -05.
How many hours of sunshine does Ventanas have in September?
In September, the average sunshine duration is 6.7h.
When is the highest UV index?
February through May, July through December, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in September?
In Ventanas, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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
Ventanas, 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).

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