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
September, known for its average high temperature of 31.8°C (89.2°F) and an average low temperature of 18.8°C (65.8°F), is the warmest month.Heat index
The heat index value for September is estimated at a tropical 33°C (91.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Realize that the values for the heat index are set for shaded places and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
September is the least humid month, with an average relative humidity of 46%.Rainfall
In Cumari, Brazil, in September, during 7.3 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, there are 222.7 rainfall days, and 1699mm (66.89") of precipitation is accumulated.Daylight
The average length of the day in September in Cumari is 12h and 0min.On the first day of September in Cumari, Brazil, sunrise is at 06:19 and sunset at 18:05. On the last day of the month, sunrise is at 05:54 and sunset at 18:10 -03.
Sunshine
The average sunshine in September is 9.6h.UV index
January, July through October, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during September translates into the following guidance:
Deflect overexposure. Sun protection is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Cumari?
How hot is it in Cumari in September?
What is the least humid month in Cumari?
What is the average humidity in September in Cumari?
How much does it rain in Cumari in September?
What is the average length of the day in September in Cumari?
When is the sunrise / sunset in September in Cumari?
How many hours of sunshine does Cumari have in September?
What is the month with the highest UV index in Cumari?
How high is the UV index in September in Cumari?
Average temperature in September
Cumari, Brazil
- Average high temperature in September: 31.8°C
The warmest month (with the highest average high temperature) is September (31.8°C).
The month with the lowest average high temperature is June (25.4°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is October (19.7°C).
The coldest month (with the lowest average low temperature) is July (14.8°C).
Average pressure in September
Cumari, Brazil
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is July (1018.7mbar).
The month with the lowest atmospheric pressure is November (1011.3mbar).
Average wind speed in September
Cumari, Brazil
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is August (10km/h).
The calmest month (with the lowest average wind speed) is March (6.4km/h).
Average humidity in September
Cumari, Brazil
- Average humidity in September: 46%
The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is September (46%).
Average rainfall in September
Cumari, Brazil
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (284mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in September
Cumari, Brazil
- Average rainfall days in September: 7.3 days
The month with the highest number of rainy days is December (30.3 days).
The month with the least rainy days is August (2.9 days).
Average daylight in September /
Average sunshine in September
Cumari, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 18min).
Average sunshine days in September
Cumari, Brazil
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is December (0.5 days).
Average UV index in September
Cumari, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, July, August, September and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, November and December (UV index 5).
Average cloud cover in September
Cumari, Brazil
- Average cloud cover in September: 15
The month with the most cloud cover is March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Cumari, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April and December (7km).
