September weather forecastGuaiçara, Brazil
September
Weather in September
September, the first month of the spring in Guaiçara, is a hot month, with an average temperature ranging between max 30.6°C (87.1°F) and min 17.8°C (64°F).Temperature
As Guaiçara transitions from August to September, the average high-temperatures adjust to a hot 30.6°C (87.1°F), nearly the same as the previous 28.3°C (82.9°F). Guaiçara registers a prominent dip from daytime highs, with an average of 17.8°C (64°F) during the nights of September.Heat index
The heat index in September is appraised at a tropical 34°C (93.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
The months with the lowest humidity in Guaiçara are August and September, with an average relative humidity of 58%.Rainfall
In Guaiçara, in September, it is raining for 8.6 days, with typically 40mm (1.57") of accumulated precipitation. In Guaiçara, during the entire year, the rain falls for 195.6 days and collects up to 1139mm (44.84") of precipitation.Daylight
In September, the average length of the day is 11h and 59min.On the first day of the month, sunrise is at 06:27 and sunset at 18:10. On the last day of September, sunrise is at 06:00 and sunset at 18:17 -03.
Sunshine
In Guaiçara, the average sunshine in September is 9.3h.UV index
The months with the highest UV index are January through April, July through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Guaiçara, Brazil
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is October (30.7°C).
The month with the lowest average high temperature is June (24.4°C).
- Average low temperature in September: 17.8°C
The month with the highest average low temperature is December (21.1°C).
The coldest month (with the lowest average low temperature) is June (15°C).
Average pressure in September
Guaiçara, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1018.2mbar).
The month with the lowest atmospheric pressure is December (1010.1mbar).
Average wind speed in September
Guaiçara, Brazil
- Average wind speed in September: 10.6km/h
The windiest months (with the highest average wind speed) are August and September (10.6km/h).
The calmest month (with the lowest average wind speed) is February (7.3km/h).
Average humidity in September
Guaiçara, Brazil
- Average humidity in September: 58%
The month with the highest relative humidity is March (85%).
The months with the lowest relative humidity are August and September (58%).
Average rainfall in September
Guaiçara, Brazil
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is January (201mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Guaiçara, Brazil
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (3.9 days).
Average daylight in September /
Average sunshine in September
Guaiçara, 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 18min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days in September
Guaiçara, Brazil
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is August (26.1 days).
The month with the least sunshine days is February (1.9 days).
Average UV index in September
Guaiçara, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 5).
Average cloud cover in September
Guaiçara, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Guaiçara, 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, May and December (8km).





