Normal weather for Itajaí in September
It's hot in September in Itajaí with an average temperature of 30°C. Temperatures this month range from a low of 27°C to a high of 31°C. At night, you can expect temperatures between 16°C and 20°C.
In September, there is an average of 47 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the East.
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Itajaí in September |
London | ||
|---|---|---|---|
 Average Temperature |
30°C | 20°C | |
 High Temp |
31°C | 22°C | |
| Low Temp |
27°C | 17°C | |
 Total Precipitation |
47 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
Curious about the climate in other parts of Brazil? Check out the weather and climate in places like Rio de Janeiro, Salvador, Pipa, or have a look at other destinations in Brazil.
Start of September
The month of September starts in Itajaí with hot temperatures, averaging around 29°C during the day and nights close to 18°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature rises to around 31°C, with nights close to 18°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Itajaí will be around 31°C, with nights close to 19°C. A shower might show up, but overall the weather will be dry and sunny.
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Is September a good time to visit Itajaí?
September is a great month to be in Itajaí for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for Itajaí in September
With 40°C, Itajaí hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 19°C in 2022. The extreme night temperatures ranged from a low of 11°C to a high of 24°C.
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Daily Temperature in September in Itajaí
This chart shows the average daily temperatures, both day and night, for each day in September in Itajaí, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Itajaí
The chart below shows the average daily precipitation in September for Itajaí, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 9 days of rain in Itajaí.
Daily UV Index in September in Itajaí
This chart shows the average daily UV index in September in Itajaí, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Itajaí Over the Years
This chart shows the average temperature in September in Itajaí, measured in degrees Celsius, over the past years.
Total Precipitation in September in Itajaí Over the Years
This chart shows the average precipitation in September in Itajaí, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Itajaí
Click on a specific day in September for detailed info on the typical weather on that day in Itajaí. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Itajaí
Have you been to Itajaí in September?
Share your weather experience in September in Itajaí.
Average Weather in Itajaí by Month
Click on a month below to see detailed weather info for Itajaí. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
