Climate averages 1991–2020
Itapema weather
in September.
A warm, wet month: the 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Itapema: daytime highs average 22.0°C and nights cool to about 15.6°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 137 mm of rain on roughly 13 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average September day.
The nearest other city in this atlas is Camboriú (8 km away). In September its highs average 21.4°C, 0.6°C cooler than Itapema, with 152 mm of rain.
Among the 448 cities listed in Brazil, Itapema ranks joint 399th of 448 for the warmest September highs and 391st of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Itapema is 5.5°C cooler than that mean.
From September to October, average highs rise by 1.7°C to 23.7°C, and monthly rainfall falls from 137 mm to 127 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Itapema climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.2°C22.1°C | 22.1°C | 187 | 18.9 | 13.614 h |
| February | 28.2°C22.2°C | 22.2°C | 165 | 17.6 | 13.013 h |
| March | 27.3°C21.2°C | 21.2°C | 136 | 18.2 | 12.312 h |
| April | 25.5°C19.1°C | 19.1°C | 98 | 12.2 | 11.511 h |
| May | 22.6°C16.0°C | 16.0°C | 116 | 12.1 | 10.811 h |
| June | 21.0°C14.1°C | 14.1°C | 106 | 9.8 | 10.510 h |
| July | 20.3°C13.1°C | 13.1°C | 95 | 9.9 | 10.611 h |
| August | 21.2°C13.9°C | 13.9°C | 95 | 9.6 | 11.211 h |
| September, selected | 22.0°C15.6°C | 15.6°C | 137 | 12.6 | 11.912 h |
| October | 23.7°C17.7°C | 17.7°C | 127 | 13.7 | 12.713 h |
| November | 25.1°C19.0°C | 19.0°C | 120 | 14.5 | 13.413 h |
| December | 27.3°C20.9°C | 20.9°C | 126 | 15.5 | 13.814 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Camboriú in SeptemberBrazil · 8 kmHigh 21.4°C · Low 16.0°C · 152 mm rain
- Balneário Camboriú in SeptemberBrazil · 11 kmHigh 21.0°C · Low 16.0°C · 152 mm rain
- Itajaí in SeptemberBrazil · 21 kmHigh 20.7°C · Low 16.2°C · 152 mm rain
- Brusque in SeptemberBrazil · 30 kmHigh 22.3°C · Low 14.9°C · 158 mm rain
- Gaspar in SeptemberBrazil · 39 kmHigh 22.1°C · Low 15.2°C · 158 mm rain
- Blumenau in SeptemberBrazil · 49 kmHigh 22.2°C · Low 15.0°C · 158 mm rain
- Florianópolis in SeptemberBrazil · 57 kmHigh 21.0°C · Low 15.8°C · 132 mm rain
- São José (Santa Catarina, 27.62°S 48.63°W), Brazil in SeptemberBrazil · 58 kmHigh 21.4°C · Low 15.3°C · 149 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Itapema) is explained once on the Itapema year overview and on the Sources, method and limits page.