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 denotes an average high-temperature of a still warm 28.1°C (82.6°F), subtly different from August's 26.4°C (79.5°F). During the month of September, an average temperature of 18.5°C (65.3°F) is noted during the nights.Heat index
September's mean heat index is computed to be a hot 32°C (89.6°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The least humid month in Itanhém is September, with an average relative humidity of 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 15.2 days and typically collects 21mm (0.83") of precipitation.Daylight
The average length of the day in September is 12h and 1min.On the first day of September, sunrise is at 05:47 and sunset at 17:34. On the last day of the month, sunrise is at 05:23 and sunset at 17:38 -03.
Sunshine
In September, the average sunshine in Itanhém is 6.6h.UV index
The average daily maximum UV index in September in Itanhém, Brazil, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during September leads to these advisories:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Itanhém?
What is the least humid month in Itanhém?
What is the average humidity in September in Itanhém?
What is the driest month in Itanhém?
How many days does it rain in September in Itanhém?
What is the average length of the day in September in Itanhém?
When is the sunrise / sunset in September in Itanhém?
How many hours of sunshine does Itanhém have in September?
How high is the UV index in September in Itanhém?
Average temperature in September
Itanhém, Brazil
- Average high temperature in September: 28.1°C
The warmest month (with the highest average high temperature) is February (31.2°C).
The month with the lowest average high temperature is July (25.9°C).
- Average low temperature in September: 18.5°C
The months with the highest average low temperature are February and March (21.3°C).
The coldest month (with the lowest average low temperature) is July (17.2°C).
Average pressure in September
Itanhém, Brazil
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in September
Itanhém, Brazil
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is October (9.6km/h).
The calmest months (with the lowest average wind speed) are May and June (6.6km/h).
Average humidity in September
Itanhém, Brazil
- Average humidity in September: 78%
The months with the highest relative humidity are April, May and June (85%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Itanhém, Brazil
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is December (123mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Itanhém, Brazil
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is November (23.1 days).
The month with the least rainy days is September (15.2 days).
Average daylight in September /
Average sunshine in September
Itanhém, 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: 6h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 36min).
Average sunshine days in September
Itanhém, Brazil
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is September (10.4 days).
The months with the least sunshine days are April and November (5.4 days).
Average UV index in September
Itanhém, 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
Itanhém, Brazil
- Average cloud cover in September: 48
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is February (Cloud cover 44).
Average visibility in September
Itanhém, Brazil
- Average visibility in September: 8km
The months with the highest visibility are February, September, October and December (8km).
The months with the lowest visibility are January, March, April, May, June, July, August and November (7km).
