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 transition into September marks the average high-temperature at a still moderately hot 27.4°C (81.3°F), differing minimally from August's 26.2°C (79.2°F). During September, the nighttime temperature averages of 18°C (64.4°F).Heat index
For most parts of September, the heat index is calculated to be a tropical 31°C (87.8°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in September in Itamaraju is 81%.Rainfall
September is the month with the least rainfall in Itamaraju. Rain falls for 17.8 days and accumulates 31mm (1.22") of precipitation.Daylight
In September, the average length of the day in Itamaraju is 12h and 1min.On the first day of September, sunrise is at 05:44 and sunset at 17:31. On the last day of the month, sunrise is at 05:20 and sunset at 17:35 -03.
Sunshine
In Itamaraju, the average sunshine in September is 5.7h.UV index
In Itamaraju, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Itamaraju in September?
What is the average humidity in September in Itamaraju?
What is the driest month in Itamaraju?
How many days does it rain in September in Itamaraju?
What is the average length of the day in September in Itamaraju?
When are sunrise and sunset in September in Itamaraju?
How long on average sun shines in September in Itamaraju?
What is the UV index intensity in September in Itamaraju?
Average temperature in September
Itamaraju, Brazil
- Average high temperature in September: 27.4°C
The warmest month (with the highest average high temperature) is February (31°C).
The month with the lowest average high temperature is July (26°C).
- Average low temperature in September: 18°C
The months with the highest average low temperature are March and December (21°C).
The coldest month (with the lowest average low temperature) is August (16.7°C).
Average pressure in September
Itamaraju, Brazil
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in September
Itamaraju, Brazil
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is October (7.6km/h).
The calmest months (with the lowest average wind speed) are May and June (5.7km/h).
Average humidity in September
Itamaraju, Brazil
- Average humidity in September: 81%
The month with the highest relative humidity is June (87%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in September
Itamaraju, Brazil
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is December (105mm).
The driest month (with the least rainfall) is September (31mm).
Average rainfall days in September
Itamaraju, Brazil
- Average rainfall days in September: 17.8 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (14.8 days).
Average daylight in September /
Average sunshine in September
Itamaraju, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The months with the least sunshine are October and November (Average sunshine: 5h and 6min).
Average sunshine days in September
Itamaraju, Brazil
- Average sunshine days in September: 7 days
The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in September
Itamaraju, Brazil
- Average UV index in September: 6
The month with the highest UV index is February (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Itamaraju, Brazil
- Average cloud cover in September: 58
The month with the most cloud cover is May (Cloud cover 66).
The month with the least cloud cover is February (Cloud cover 52).
Average visibility in September
Itamaraju, Brazil
- Average visibility in September: 7km
The months with the highest visibility are January, February, September, October, November and December (7km).
The months with the lowest visibility are March, April, May, June, July and August (6km).
