Climate averages 1991–2020
Itajaí weather
in May.
A warm, wet month: the 8th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Itajaí: daytime highs average 22.0°C and nights cool to about 17.1°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 115 mm of rain on roughly 12 days, which makes May a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 49 min on an average May day.
The nearest other city in this atlas is Balneário Camboriú (10 km away). In May its highs average 22.1°C, about as warm as Itajaí, with 115 mm of rain.
Among the 448 cities listed in Brazil, Itajaí ranks joint 372nd of 448 for the warmest May highs and joint 342nd of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Itajaí is 3.3°C cooler than that mean.
From May to June, average highs fall by 1.9°C to 20.1°C, and monthly rainfall falls from 115 mm to 109 mm.
The annual picture
May 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
Itajaí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.1°C22.6°C | 22.6°C | 215 | 21.9 | 13.614 h |
| February | 27.2°C22.8°C | 22.8°C | 196 | 19.5 | 13.013 h |
| March | 26.4°C22.0°C | 22.0°C | 147 | 19.5 | 12.312 h |
| April | 24.7°C20.0°C | 20.0°C | 98 | 12.5 | 11.511 h |
| May, selected | 22.0°C17.1°C | 17.1°C | 115 | 11.7 | 10.811 h |
| June | 20.1°C15.1°C | 15.1°C | 109 | 10.0 | 10.510 h |
| July | 19.2°C14.0°C | 14.0°C | 98 | 10.1 | 10.611 h |
| August | 19.7°C14.6°C | 14.6°C | 98 | 9.9 | 11.211 h |
| September | 20.7°C16.2°C | 16.2°C | 152 | 13.0 | 11.912 h |
| October | 22.4°C18.2°C | 18.2°C | 143 | 15.5 | 12.713 h |
| November | 24.0°C19.6°C | 19.6°C | 143 | 17.0 | 13.413 h |
| December | 26.1°C21.5°C | 21.5°C | 156 | 18.3 | 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
May in nearby cities
- Balneário Camboriú in MayBrazil · 10 kmHigh 22.1°C · Low 16.7°C · 115 mm rain
- Camboriú in MayBrazil · 13 kmHigh 22.4°C · Low 16.6°C · 115 mm rain
- Itapema in MayBrazil · 21 kmHigh 22.6°C · Low 16.0°C · 116 mm rain
- Gaspar in MayBrazil · 30 kmHigh 22.4°C · Low 15.2°C · 109 mm rain
- Brusque in MayBrazil · 33 kmHigh 22.6°C · Low 15.0°C · 109 mm rain
- Blumenau in MayBrazil · 40 kmHigh 22.3°C · Low 15.0°C · 109 mm rain
- Indaial in MayBrazil · 57 kmHigh 22.1°C · Low 14.5°C · 112 mm rain
- Jaraguá do Sul in MayBrazil · 62 kmHigh 22.6°C · Low 15.4°C · 102 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 Itajaí) is explained once on the Itajaí year overview and on the Sources, method and limits page.
Balneário Camboriú and Camboriú lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.