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
With the advent of September, Iapu experiences an average high-temperature of a still warm 28.9°C (84°F), mirroring a close resemblance to the previous month. During the nights in September, an average low-temperature of 17°C (62.6°F) is observed.Heat index
In September, the average heat index is computed to be a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The least humid month is September, with an average relative humidity of 68%.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 26mm (1.02") of precipitation is accumulated. Throughout the year, there are 170.4 rainfall days, and 754mm (29.69") of precipitation is accumulated.Daylight
In Iapu, the average length of the day in September is 12h and 0min.On the first day of the month, sunrise is at 05:56 and sunset at 17:41. On the last day of September, sunrise is at 05:30 and sunset at 17:46 -03.
Sunshine
With an average of 8.4h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are January through May, August through October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Iapu?
What is the least humid month in Iapu?
What is the average humidity in September in Iapu?
How many days does it rain in September in Iapu?
How many hours of daylight does Iapu have in September?
When are sunrise and sunset in September in Iapu?
What month has the most sunshine in Iapu?
How many hours of sunshine does Iapu have in September?
What is the month with the highest UV index in Iapu?
What is the UV index intensity in September in Iapu?
Average temperature in September
Iapu, Brazil
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is October (29.5°C).
The months with the lowest average high temperature are June and July (25.3°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is December (19.9°C).
The coldest month (with the lowest average low temperature) is July (14.1°C).
Average pressure in September
Iapu, Brazil
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is December (1013mbar).
Average wind speed in September
Iapu, Brazil
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is October (7.1km/h).
The calmest month (with the lowest average wind speed) is May (4.3km/h).
Average humidity in September
Iapu, Brazil
- Average humidity in September: 68%
The months with the highest relative humidity are March, April and December (85%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Iapu, Brazil
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (154mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in September
Iapu, Brazil
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is August (8.1 days).
Average daylight in September /
Average sunshine in September
Iapu, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is September (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
Iapu, Brazil
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Iapu, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, August, September, October and December (UV index 6).
The months with the lowest UV index are June, July and November (UV index 5).
Average cloud cover in September
Iapu, Brazil
- Average cloud cover in September: 35
The month with the most cloud cover is November (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in September
Iapu, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May and December (7km).
