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 coincides with an average high-temperature of a moderately hot 24.1°C (75.4°F), indicating a minimal shift from August's 22.7°C (72.9°F). São Caetano do Sul's nights in September cool down to an average low-temperature of 15.9°C (60.6°F).Humidity
In September, the average relative humidity is 76%.Rainfall
In São Caetano do Sul, during September, the rain falls for 14.6 days and regularly aggregates up to 52mm (2.05") of precipitation. Throughout the year, there are 217.7 rainfall days, and 1056mm (41.57") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 06:16 and sunset at 17:55. On the last day of September, in São Caetano do Sul, sunrise is at 05:46 and sunset at 18:05 -03.
Sunshine
September has the most sunshine of the year, with an average of 7.8h of sunshine.UV index
February, April through September, with an average maximum UV index of 5, are months with the lowest UV index in São Caetano do Sul. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the usual temperature for São Caetano do Sul in September?
What is the average humidity in September in São Caetano do Sul?
How much does it rain in São Caetano do Sul in September?
What is the average length of the day in September in São Caetano do Sul?
What time are sunrise and sunset in September in São Caetano do Sul?
What month has the most sunshine in São Caetano do Sul?
How long on average sun shines in September in São Caetano do Sul?
When is the lowest UV index in São Caetano do Sul?
What is the UV index intensity in September in São Caetano do Sul?
Average temperature in September
São Caetano do Sul, Brazil
- Average high temperature in September: 24.1°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is July (21.4°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is January (20.4°C).
The coldest month (with the lowest average low temperature) is July (14.3°C).
Average pressure in September
São Caetano do Sul, Brazil
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).
Average wind speed in September
São Caetano do Sul, Brazil
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is November (10.1km/h).
The calmest month (with the lowest average wind speed) is February (8.1km/h).
Average humidity in September
São Caetano do Sul, Brazil
- Average humidity in September: 76%
The months with the highest relative humidity are March and April (84%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
São Caetano do Sul, Brazil
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is January (199mm).
The driest month (with the least rainfall) is August (37mm).
Average rainfall days in September
São Caetano do Sul, Brazil
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is January (26.7 days).
The month with the least rainy days is August (10.9 days).
Average daylight in September /
Average sunshine in September
São Caetano do Sul, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is September (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in September
São Caetano do Sul, Brazil
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is August (17.2 days).
The month with the least sunshine days is February (3.1 days).
Average UV index in September
São Caetano do Sul, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, March, October, November and December (UV index 6).
The months with the lowest UV index are February, April, May, June, July, August and September (UV index 5).
Average cloud cover in September
São Caetano do Sul, Brazil
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
São Caetano do Sul, Brazil
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (8km).
São Caetano do Sul, Brazil
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