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 month of September sees the highest average temperatures, reaching 35.5°C (95.9°F) at the peak and 23.1°C (73.6°F) at the low.Heat index
During September, the heat index is evaluated at a life-threatening hot 46°C (114.8°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Plácido de Castro, the average relative humidity in September is 58%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 32mm (1.26") of precipitation is accumulated. Throughout the year, there are 233.4 rainfall days, and 1251mm (49.25") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 3min.On the first day of September, sunrise is at 05:30 and sunset at 17:26. On the last day of the month, sunrise is at 05:12 and sunset at 17:24 -05.
Sunshine
The average sunshine in September is 9.2h.UV index
July through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 7 transforms into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Plácido de Castro have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index in Plácido de Castro?
What is the UV index reading in September?
Average temperature in September
Plácido de Castro, Brazil
- Average high temperature in September: 35.5°C
The warmest month (with the highest average high temperature) is September (35.5°C).
The month with the lowest average high temperature is January (29.2°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is September (23.1°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).
Average pressure in September
Plácido de Castro, Brazil
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is July (1013.5mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).
Average wind speed in September
Plácido de Castro, Brazil
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is August (5.1km/h).
The calmest month (with the lowest average wind speed) is May (4.2km/h).
Average humidity in September
Plácido de Castro, Brazil
- Average humidity in September: 58%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Plácido de Castro, Brazil
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is February (200mm).
The driest month (with the least rainfall) is July (11mm).
Average rainfall days in September
Plácido de Castro, Brazil
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is January (29 days).
The month with the least rainy days is August (6 days).
Average daylight in September /
Average sunshine in September
Plácido de Castro, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Plácido de Castro, Brazil
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is January (1.5 days).
Average UV index in September
Plácido de Castro, Brazil
- Average UV index in September: 7
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in September
Plácido de Castro, Brazil
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Plácido de Castro, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is February (5km).
