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
São Miguel do Guamá's weather in September indicates an average high-temperature of a still hot 32.5°C (90.5°F), nearly consistent with the 32.2°C (90°F) of August. São Miguel do Guamá's September nights cool down to an average low-temperature of 21.5°C (70.7°F).Heat index
September's heat index is evaluated at a life-threatening hot 46°C (114.8°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 19.4 days and typically collects 30mm (1.18") of precipitation.Daylight
The average length of the day in September in São Miguel do Guamá is 12h and 6min.On the first day of the month, sunrise is at 06:07 and sunset at 18:12. On the last day of September, in São Miguel do Guamá, sunrise is at 05:55 and sunset at 18:03 -03.
Sunshine
In São Miguel do Guamá, the average sunshine in September is 7.6h.UV index
The months with the highest UV index in São Miguel do Guamá are July, September through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in São Miguel do Guamá in September?
What is the average humidity in September in São Miguel do Guamá?
What is the driest month in São Miguel do Guamá?
How much does it rain in São Miguel do Guamá in September?
How many hours of daylight does São Miguel do Guamá have in September?
What time are sunrise and sunset in September in São Miguel do Guamá?
How long on average sun shines in September in São Miguel do Guamá?
What is the month with the highest UV index in São Miguel do Guamá?
What is the UV index intensity in September in São Miguel do Guamá?
Average temperature in September
São Miguel do Guamá, Brazil
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is November (33.6°C).
The months with the lowest average high temperature are March and April (29.8°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is December (22.6°C).
The coldest month (with the lowest average low temperature) is July (20.9°C).
Average pressure in September
São Miguel do Guamá, Brazil
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is July (1012.8mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
São Miguel do Guamá, Brazil
- Average wind speed in September: 7.3km/h
The windiest months (with the highest average wind speed) are September and November (7.3km/h).
The calmest month (with the lowest average wind speed) is April (4.8km/h).
Average humidity in September
São Miguel do Guamá, Brazil
- Average humidity in September: 79%
The month with the highest relative humidity is April (92%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
São Miguel do Guamá, Brazil
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is March (228mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in September
São Miguel do Guamá, Brazil
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is March (30.3 days).
The month with the least rainy days is November (16.5 days).
Average daylight in September /
Average sunshine in September
São Miguel do Guamá, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 8h and 6min).
The month with the least sunshine is March (Average sunshine: 5h and 12min).
Average sunshine days in September
São Miguel do Guamá, Brazil
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is November (11.7 days).
The month with the least sunshine days is April (0.3 days).
Average UV index in September
São Miguel do Guamá, Brazil
- Average UV index in September: 7
The months with the highest UV index are July, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August and December (UV index 6).
Average cloud cover in September
São Miguel do Guamá, Brazil
- Average cloud cover in September: 53
The months with the most cloud cover are March and April (Cloud cover 76).
The month with the least cloud cover is November (Cloud cover 49).
Average visibility in September
São Miguel do Guamá, Brazil
- Average visibility in September: 7km
The month with the highest visibility is November (8km).
The months with the lowest visibility are February, March, April and May (5km).
