September weather forecastJapoatã, Brazil
September
Weather in September
The first month of the spring, September, is also a moderately hot month in Japoatã, Brazil, with temperature in the range of an average high of 27.9°C (82.2°F) and an average low of 21.2°C (70.2°F).Temperature
The advent of September signifies a minor shift to an average high-temperature of a still moderately hot 27.9°C (82.2°F), aligning closely with August. The nighttime temperature, during September, averages of 21.2°C (70.2°F).Heat index
During September, the heat index is estimated at a tropical 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In September, the average relative humidity in Japoatã is 79%.Rainfall
In September, the rain falls for 20.5 days. Throughout September, 34mm (1.34") of precipitation is accumulated. Throughout the year, in Japoatã, there are 222.9 rainfall days, and 509mm (20.04") 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 05:29 and sunset at 17:24. On the last day of the month, sunrise is at 05:11 and sunset at 17:22 -03.
Sunshine
In Japoatã, the average sunshine in September is 7.9h.UV index
The months with the lowest UV index in Japoatã are April through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Japoatã, Brazil
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (26.6°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is March (24.4°C).
The coldest month (with the lowest average low temperature) is August (20.8°C).
Average pressure in September
Japoatã, Brazil
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is August (1017.3mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).
Average wind speed in September
Japoatã, Brazil
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is November (15.5km/h).
The calmest month (with the lowest average wind speed) is May (10km/h).
Average humidity in September
Japoatã, Brazil
- Average humidity in September: 79%
The months with the highest relative humidity are June and July (83%).
The month with the lowest relative humidity is December (71%).
Average rainfall in September
Japoatã, Brazil
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (85mm).
The driest month (with the least rainfall) is November (16mm).
Average rainfall days in September
Japoatã, Brazil
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is July (25.2 days).
The month with the least rainy days is November (11.5 days).
Average daylight in September /
Average sunshine in September
Japoatã, Brazil
- Average daylight in September: 12h and 6min
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: 7h and 54min
The month with the most sunshine is March (Average sunshine: 8h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 12min).
Average sunshine days in September
Japoatã, Brazil
- Average sunshine days in September: 4.4 days
The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is August (2 days).
Average UV index in September
Japoatã, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August and September (UV index 6).
Average cloud cover in September
Japoatã, Brazil
- Average cloud cover in September: 41
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is December (Cloud cover 34).
Average visibility in September
Japoatã, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (10km).
The months with the lowest visibility are May and July (9km).





