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
Weather in September
Temperature
September observes an average high-temperature of a still tropical 32.5°C (90.5°F), marking an insignificant difference from August's 30.7°C (87.3°F). Petrolina experiences a substantial divergence from daytime highs in September, with average lows hovering around a pleasant 20.3°C (68.5°F).Heat index
September's mean heat index is appraised at a very hot 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In September, the average relative humidity in Petrolina is 52%.Rainfall
The months with the least rainfall are August and September Rain falls for 1.1 days and accumulates 1mm (0.04") of rain.Daylight
In September, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 05:43 and sunset at 17:40. On the last day of September, sunrise is at 05:26 and sunset at 17:37 -03.
Sunshine
In September, the average sunshine in Petrolina, Brazil, is 8.8h.UV index
The months with the highest UV index in Petrolina are January through April, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Ward off overexposure. Defence against solar harm is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
How hot is it in Petrolina in September?
What is the average humidity in September in Petrolina?
What is the driest month in Petrolina?
How much does it rain in Petrolina in September?
How many hours of daylight does Petrolina have in September?
When are sunrise and sunset in September in Petrolina?
How many hours of sunshine does Petrolina have in September?
When is the highest UV index in Petrolina?
How high is the UV index in September in Petrolina?
Average temperature in September
Petrolina, Brazil
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is November (34.1°C).
The month with the lowest average high temperature is July (29.4°C).
- Average low temperature in September: 20.3°C
The month with the highest average low temperature is November (23.5°C).
The coldest month (with the lowest average low temperature) is August (18.9°C).
Average pressure in September
Petrolina, Brazil
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Petrolina, Brazil
- Average wind speed in September: 23.1km/h
The windiest month (with the highest average wind speed) is September (23.1km/h).
The calmest month (with the lowest average wind speed) is March (14.2km/h).
Average humidity in September
Petrolina, Brazil
- Average humidity in September: 52%
The months with the highest relative humidity are April, May and June (65%).
The month with the lowest relative humidity is November (49%).
Average rainfall in September
Petrolina, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is December (56mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in September
Petrolina, Brazil
- Average rainfall days in September: 1.1 days
The month with the highest number of rainy days is March (14.5 days).
The month with the least rainy days is September (1.1 days).
Average daylight in September /
Average sunshine in September
Petrolina, Brazil
- Average daylight in September: 12h and 1min
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 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is January (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).
Average sunshine days in September
Petrolina, Brazil
- Average sunshine days in September: 26.6 days
The month with the most sunshine days is September (26.6 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in September
Petrolina, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 6).
Average cloud cover in September
Petrolina, Brazil
- Average cloud cover in September: 22
The months with the most cloud cover are May and June (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 22).
Average visibility in September
Petrolina, 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).
Petrolina, Brazil
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