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 observes an average high-temperature of a hot 30.6°C (87.1°F), nearly identical to August's 28.4°C (83.1°F). Throughout September nights, a significant departure from daytime temperatures, with an average low of 18.2°C (64.8°F), is recognized in Lapão.Heat index
The heat index for September is computed to be a hot 33°C (91.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
September and October, with an average relative humidity of 56%, are the least humid months.Rainfall
In Lapão, in September, during 2.1 rainfall days, 3mm (0.12") of precipitation is typically accumulated. In Lapão, during the entire year, the rain falls for 110.5 days and collects up to 525mm (20.67") of precipitation.Daylight
In September, the average length of the day is 12h and 2min.On the first day of September, sunrise is at 05:50 and sunset at 17:44. On the last day of the month, sunrise is at 05:31 and sunset at 17:43 -03.
Sunshine
In September, the average sunshine in Lapão is 9.4h.UV index
The months with the highest UV index in Lapão are September through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 7 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. 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
How hot does it get in Lapão in September?
What is the least humid month in Lapão?
What is the average humidity in September in Lapão?
How many days does it rain in September in Lapão?
How many hours of daylight does Lapão have in September?
What time are sunrise and sunset in September in Lapão?
How many hours of sunshine does Lapão have in September?
What is the month with the highest UV index in Lapão?
What is the UV index reading in September in Lapão?
Average temperature in September
Lapão, Brazil
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is July (27.2°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is November (20.7°C).
The coldest month (with the lowest average low temperature) is July (17.2°C).
Average pressure in September
Lapão, Brazil
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is July (1017.6mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in September
Lapão, Brazil
- Average wind speed in September: 21.3km/h
The windiest months (with the highest average wind speed) are August and September (21.3km/h).
The calmest month (with the lowest average wind speed) is March (13.6km/h).
Average humidity in September
Lapão, Brazil
- Average humidity in September: 56%
The month with the highest relative humidity is April (71%).
The months with the lowest relative humidity are September and October (56%).
Average rainfall in September
Lapão, Brazil
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is February (90mm).
The driest months (with the least rainfall) are June, July and August (2mm).
Average rainfall days in September
Lapão, Brazil
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (1.7 days).
Average daylight in September /
Average sunshine in September
Lapão, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are January and February (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).
Average sunshine days in September
Lapão, Brazil
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is September (24.2 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Lapão, Brazil
- Average UV index in September: 7
The months with the highest UV index are September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August and December (UV index 6).
Average cloud cover in September
Lapão, Brazil
- Average cloud cover in September: 21
The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 21).
Average visibility in September
Lapão, Brazil
- 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).
