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 sea temperature 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
Weather in September
Temperature
The beginning of September is characterized by an average high temperature of a still warm 27.9°C (82.2°F), consistent with August's weather. The month of September in Ponta Negra is marked by an average minimum temperature of 24°C (75.2°F), slightly cooler than its daytime counterpart.Heat index
The heat index value for September is estimated at a tropical 31°C (87.8°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to 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
In September, the average relative humidity is 75%.Rainfall
September and October are months with the least rain when the rain falls for 8 days and typically aggregates up to 7mm (0.28") of rain.Sea temperature
The months with the coldest seawater in Ponta Negra are July through December, with an average sea temperature of 27°C (80.6°F).Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.
Daylight
The average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 05:20 and sunset at 17:20. On the last day of the month, sunrise is at 05:05 and sunset at 17:15 -03.
Sunshine
In September, the average sunshine is 8.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Frequently asked questions
What are the temperatures in Ponta Negra in September?
What is the average humidity in September in Ponta Negra?
What is the driest month in Ponta Negra?
How much does it rain in Ponta Negra in September?
When is the sea coldest in Ponta Negra?
What is the sea water temperature in September in Ponta Negra?
How many hours of daylight does Ponta Negra have in September?
What time are sunrise and sunset in September in Ponta Negra?
How long on average sun shines in September in Ponta Negra?
When is the highest UV index in Ponta Negra?
What are the months with the lowest UV index in Ponta Negra?
What is the UV index reading in September in Ponta Negra?
Average temperature in September
Ponta Negra, Brazil
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is March (30.2°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is March (26.3°C).
The coldest months (with the lowest average low temperature) are July and August (23.8°C).
Average pressure in September
Ponta Negra, Brazil
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is August (1015mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).
Average wind speed in September
Ponta Negra, Brazil
- Average wind speed in September: 26.2km/h
The windiest month (with the highest average wind speed) is September (26.2km/h).
The calmest months (with the lowest average wind speed) are March and April (17.9km/h).
Average humidity in September
Ponta Negra, Brazil
- Average humidity in September: 75%
The months with the highest relative humidity are June and July (79%).
The months with the lowest relative humidity are October and November (73%).
Average rainfall in September
Ponta Negra, Brazil
- Average rainfall in September: 7mm
The wettest month (with the highest rainfall) is March (134mm).
The driest months (with the least rainfall) are September and October (7mm).
Average rainfall days in September
Ponta Negra, Brazil
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is April (23.4 days).
The month with the least rainy days is September (8 days).
Average sea temperature in September
Ponta Negra, Brazil
- Average sea temperature in September: 27°C
The best months for swimming (with the highest average sea temperature) are January, February, March, April, May and June (28°C).
The coldest months (with the lowest average sea temperature) are July, August, September, October, November and December (27°C).
Average daylight in September /
Average sunshine in September
Ponta Negra, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is October (Average sunshine: 8h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 0min).
Average sunshine days in September
Ponta Negra, Brazil
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is February (1.3 days).
Average UV index in September
Ponta Negra, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Ponta Negra, Brazil
- Average cloud cover in September: 39
The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are October and November (Cloud cover 37).
Average visibility in September
Ponta Negra, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Ponta Negra, Brazil
Weather forecast for your location
2. Allow the app to use your location
