Blumenau weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: April – September, November
What is the weather like in Blumenau in September?
In September, Blumenau is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 135 mm in total. All in all, September is a good month for a holiday in Blumenau.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 76 | 66 | 60 |
| Day | 21° | 22° | 24° |
| Night | 14° | 15° | 17° |
| Sun | 5 h | 4 h | 4 h |
| Rain days | 9 | 13 | 15 |
More details for September
- Daylight
- 11 h 54 min06:15 – 18:09
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 6 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC−3America/Sao_Paulo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %20 %
- Few rainy daysweight 30 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Blumenau in September: quick answers
Is Blumenau hot in September?
Warm rather than hot: in September, daytime highs in Blumenau average 22 °C and nights cool to about 15 °C.
Does it rain much in Blumenau in September?
Rain is frequent, with about 13 rainy days and 135 mm in total.
Blumenau month by month
The whole year in BlumenauAll destinations: BrazilWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences