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
Weather in September
Temperature
Alto Santo records an average high-temperature of a torrid 35.6°C (96.1°F) in September, maintaining a close correlation with August's 34.5°C (94.1°F). Alto Santo encounters a substantial decline from its daily high to a low-temperature of 22.5°C (72.5°F) during September nights.Heat index
In September, the heat index is appraised at an extremely hot 44°C (111.2°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
September is the least humid month in Alto Santo, with an average relative humidity of 55%.Rainfall
September and October are months with the least rain in Alto Santo when the rain falls for 1.9 days and typically aggregates up to 1mm (0.04") of rain.Daylight
The average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:32 and sunset at 17:33. On the last day of September, sunrise is at 05:18 and sunset at 17:27 -03.
Sunshine
September has the most sunshine of the year, with an average of 9.7h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 during September translates into the following guidance:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
How hot does it get in Alto Santo in September?
What is the least humid month in Alto Santo?
What is the average humidity in September in Alto Santo?
What is the driest month in Alto Santo?
How much does it rain in Alto Santo in September?
What is the average length of the day in September in Alto Santo?
When are sunrise and sunset in September in Alto Santo?
What month has the most sunshine in Alto Santo?
How long on average sun shines in September in Alto Santo?
What are the months with the highest UV index in Alto Santo?
What is the month with the lowest UV index in Alto Santo?
What is the UV index reading in September in Alto Santo?
Average temperature in September
Alto Santo, Brazil
- Average high temperature in September: 35.6°C
The warmest month (with the highest average high temperature) is October (36°C).
The month with the lowest average high temperature is June (32°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is December (24.5°C).
The coldest months (with the lowest average low temperature) are July and August (21.6°C).
Average pressure in September
Alto Santo, Brazil
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Alto Santo, Brazil
- Average wind speed in September: 18.1km/h
The windiest month (with the highest average wind speed) is October (18.7km/h).
The calmest month (with the lowest average wind speed) is April (11.3km/h).
Average humidity in September
Alto Santo, Brazil
- Average humidity in September: 55%
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is September (55%).
Average rainfall in September
Alto Santo, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (83mm).
The driest months (with the least rainfall) are September and October (1mm).
Average rainfall days in September
Alto Santo, Brazil
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is September (1.9 days).
Average daylight in September /
Average sunshine in September
Alto Santo, Brazil
- Average daylight in September: 12h and 1min
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 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 48min).
Average sunshine days in September
Alto Santo, Brazil
- Average sunshine days in September: 27.7 days
The months with the most sunshine days are September and October (27.7 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in September
Alto Santo, Brazil
- 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
Alto Santo, Brazil
- Average cloud cover in September: 16
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Alto Santo, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (9km).
Alto Santo, Brazil
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