September weather forecastNilo Peçanha, Brazil
September
Weather in September
September, the first month of the spring in Nilo Peçanha, is still a warm month, with an average temperature ranging between max 27.2°C (81°F) and min 18.8°C (65.8°F).Temperature
The average high-temperature in September, at a still warm 27.2°C (81°F), reveals a modest deviation from August's 26°C (78.8°F). During the month of September, Nilo Peçanha's nighttime temperature lowers to an average of 18.8°C (65.8°F).Heat index
In September, the heat index is computed to be a hot 30°C (86°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Heat index determinations are made taking into account the shade and light air movements. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. 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
In Nilo Peçanha, Brazil, the average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall in Nilo Peçanha. Rain falls for 18.8 days and accumulates 30mm (1.18") of precipitation.Daylight
The average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 05:40 and sunset at 17:32. On the last day of the month, sunrise is at 05:19 and sunset at 17:32 -03.
Sunshine
In September, the average sunshine in Nilo Peçanha is 6.5h.UV index
In September, the average daily maximum UV index in Nilo Peçanha is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 in September translates into these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nilo Peçanha, Brazil
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is March (31.6°C).
The month with the lowest average high temperature is July (25.5°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is February (22°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).
Average pressure in September
Nilo Peçanha, Brazil
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is July (1018.8mbar).
The months with the lowest atmospheric pressure are March and December (1012.7mbar).
Average wind speed in September
Nilo Peçanha, Brazil
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is July (12.4km/h).
The calmest month (with the lowest average wind speed) is March (10.3km/h).
Average humidity in September
Nilo Peçanha, Brazil
- Average humidity in September: 81%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is February (76%).
Average rainfall in September
Nilo Peçanha, Brazil
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is March (61mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in September
Nilo Peçanha, Brazil
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is July (24 days).
The month with the least rainy days is December (18.6 days).
Average daylight in September /
Average sunshine in September
Nilo Peçanha, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 6h and 30min
The month with the most sunshine is February (Average sunshine: 9h and 24min).
The month with the least sunshine is July (Average sunshine: 5h and 12min).
Average sunshine days in September
Nilo Peçanha, Brazil
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is December (8.7 days).
The month with the least sunshine days is July (4.1 days).
Average UV index in September
Nilo Peçanha, Brazil
- Average UV index in September: 6
The months with the highest UV index are January and February (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in September
Nilo Peçanha, Brazil
- Average cloud cover in September: 53
The month with the most cloud cover is May (Cloud cover 61).
The month with the least cloud cover is February (Cloud cover 45).
Average visibility in September
Nilo Peçanha, Brazil
- Average visibility in September: 8km
The month with the highest visibility is February (9km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).
