🇧🇷 Weather in Itajaí
Map Overlays:
Hourly Forecast for Itajaí
19:00
18°
92%
20:00
18°
95%
21:00
18°
92%
22:00
18°
62%
23:00
18°
88%
00:00
18°
58%
01:00
18°
84%
02:00
17°
84%
03:00
17°
57%
04:00
17°
46%
05:00
16°
43%
06:00
16°
43%
07:00
16°
44%
08:00
17°
43%
09:00
18°
38%
10:00
20°
29%
11:00
22°
23%
12:00
21°
47%
13:00
22°
50%
14:00
19°
38%
15:00
19°
30%
16:00
20°
27%
17:00
19°
36%
18:00
17°
34%
14-Day Forecast for Itajaí
2026-08-31
Light rain shower
19° /
17°
2026-09-01
Fog
22° /
15°
2026-09-02
Sunny
20° /
12°
2026-09-03
Fog
23° /
11°
2026-09-04
Fog
27° /
13°
2026-09-05
Light rain shower
15° /
14°
2026-09-06
Overcast
15° /
12°
Additional Forecasts for Itajaí
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 246.0 μg/m³
O₃ (Ozone) 42.0 μg/m³
NO₂ (Nitrogen Dioxide) 18.2 μg/m³
SO₂ (Sulphur Dioxide) 2.1 μg/m³
PM2.5 (Fine particles) 5.9 μg/m³
PM10 (Coarse particles) 6.5 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Brazil
Weather in Itajaí — FAQ
Answers refreshed each request based on current conditions in Itajaí.
What is the weather like right now in Itajaí?
Right now in Itajaí, Brazil the temperature is 18.4°C (feels like 20.4°C), with light rain shower. Relative humidity is 100% and wind is 5.4 km/h.
What is today's high and low temperature in Itajaí?
Today's forecast high in Itajaí is 18.9°C and the overnight low is 17.2°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Itajaí today?
The chance of precipitation in Itajaí today is 95%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Itajaí differ from nearby cities?
Even short distances can change temperatures noticeably. Itajaí's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.