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
The transition into September in São José dos Campos is marked with an average high-temperature of a still warm 25°C (77°F), showing an insignificant shift from August's 23.2°C (73.8°F). São José dos Campos observes an average nighttime low-temperature of 14.1°C (57.4°F) during the month of September.Humidity
August and September, with an average relative humidity of 77%, are the least humid months.Rainfall
In September, the rain falls for 15.5 days. Throughout September, 54mm (2.13") of precipitation is accumulated. In São José dos Campos, during the entire year, the rain falls for 222.3 days and collects up to 1036mm (40.79") of precipitation.Daylight
In September, the average length of the day is 11h and 58min.On the first day of September, sunrise is at 06:13 and sunset at 17:53. On the last day of the month, sunrise is at 05:44 and sunset at 18:02 -03.
Sunshine
The month with the most sunshine is September, with an average of 8.2h of sunshine.UV index
February through September, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What are the least humid months?
What is the average humidity in September?
How many days does it rain in September in São José dos Campos?
What is the average length of the day in September?
When are sunrise and sunset in September?
What month has the most sunshine?
How long on average sun shines in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
São José dos Campos, Brazil
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is February (26.8°C).
The month with the lowest average high temperature is June (21.1°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is January (18.1°C).
The coldest month (with the lowest average low temperature) is July (12.2°C).
Average pressure in September
São José dos Campos, Brazil
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).
Average wind speed in September
São José dos Campos, Brazil
- Average wind speed in September: 7.3km/h
The windiest months (with the highest average wind speed) are October and November (7.5km/h).
The calmest month (with the lowest average wind speed) is February (6.1km/h).
Average humidity in September
São José dos Campos, Brazil
- Average humidity in September: 77%
The month with the highest relative humidity is March (89%).
The months with the lowest relative humidity are August and September (77%).
Average rainfall in September
São José dos Campos, Brazil
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is January (194mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in September
São José dos Campos, Brazil
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is January (26 days).
The month with the least rainy days is August (10.1 days).
Average daylight in September /
Average sunshine in September
São José dos Campos, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is September (Average sunshine: 8h and 12min).
The months with the least sunshine are April and November (Average sunshine: 7h and 0min).
Average sunshine days in September
São José dos Campos, Brazil
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is August (17.5 days).
The month with the least sunshine days is February (3.2 days).
Average UV index in September
São José dos Campos, Brazil
- Average UV index in September: 5
The months with the highest UV index are January and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, September, November and December (UV index 5).
Average cloud cover in September
São José dos Campos, Brazil
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
São José dos Campos, Brazil
- Average visibility in September: 8km
The months with the highest visibility are July, August, September and October (8km).
The months with the lowest visibility are March, April and May (6km).
