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
The arrival of September brings an average high-temperature of a hot 30.4°C (86.7°F), subtly diverging from August's 27.8°C (82°F). In Santo Expedito, the average temperature during the nights of September marks a significant drop from the daily high, settling at a refreshing 18.3°C (64.9°F).Heat index
The heat index in September is computed to be a tropical 33°C (91.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Observations indicate that the heat index values are for shady locations with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
August and September, with an average relative humidity of 59%, are the least humid months in Santo Expedito.Rainfall
In Santo Expedito, in September, during 9.6 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Santo Expedito, during the entire year, the rain falls for 196.8 days and collects up to 1260mm (49.61") of precipitation.Daylight
In Santo Expedito, the average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:34 and sunset at 18:16. On the last day of the month, sunrise is at 06:06 and sunset at 18:24 -03.
Sunshine
The average sunshine in September is 9.1h.UV index
The months with the highest UV index in Santo Expedito, Brazil, are January through March, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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 Santo Expedito in September?
What are the least humid months in Santo Expedito?
What is the average humidity in September in Santo Expedito?
How much does it rain in Santo Expedito in September?
What is the average length of the day in September in Santo Expedito?
What time are sunrise and sunset in September in Santo Expedito?
How long on average sun shines in September in Santo Expedito?
What is the month with the highest UV index in Santo Expedito?
How high is the UV index in September in Santo Expedito?
Average temperature in September
Santo Expedito, Brazil
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is October (30.9°C).
The month with the lowest average high temperature is June (24.1°C).
- Average low temperature in September: 18.3°C
The months with the highest average low temperature are January and December (21.3°C).
The coldest months (with the lowest average low temperature) are June and July (15.3°C).
Average pressure in September
Santo Expedito, Brazil
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is July (1018.1mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
Santo Expedito, Brazil
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is August (11.1km/h).
The calmest months (with the lowest average wind speed) are February and March (7.8km/h).
Average humidity in September
Santo Expedito, Brazil
- Average humidity in September: 59%
The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August and September (59%).
Average rainfall in September
Santo Expedito, Brazil
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is January (233mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Santo Expedito, Brazil
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is January (28.5 days).
The month with the least rainy days is August (5.3 days).
Average daylight in September /
Average sunshine in September
Santo Expedito, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).
Average sunshine days in September
Santo Expedito, Brazil
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is January (2 days).
Average UV index in September
Santo Expedito, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are April and May (UV index 5).
Average cloud cover in September
Santo Expedito, Brazil
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Santo Expedito, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May and June (8km).
Santo Expedito, Brazil
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