🇧🇷 Weather in Itaguaí
Map Overlays:
Hourly Forecast for Itaguaí
21:00
20°
3%
22:00
19°
4%
23:00
18°
4%
00:00
18°
5%
01:00
17°
5%
02:00
16°
6%
03:00
16°
6%
04:00
15°
7%
05:00
15°
7%
06:00
15°
7%
07:00
15°
7%
08:00
19°
5%
09:00
22°
3%
10:00
24°
2%
11:00
26°
1%
12:00
28°
1%
13:00
29°
1%
14:00
30°
1%
15:00
29°
1%
16:00
28°
1%
17:00
24°
2%
18:00
22°
3%
19:00
21°
3%
20:00
20°
3%
14-Day Forecast for Itaguaí
2026-07-18
Sunny
29° /
14°
2026-07-19
Sunny
30° /
15°
2026-07-20
Sunny
30° /
16°
2026-07-21
Sunny
31° /
15°
2026-07-22
Sunny
33° /
16°
2026-07-23
Sunny
25° /
17°
2026-07-24
Patchy rain nearby
23° /
19°
Additional Forecasts for Itaguaí
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 115.0 μg/m³
O₃ (Ozone) 56.0 μg/m³
NO₂ (Nitrogen Dioxide) 10.9 μg/m³
SO₂ (Sulphur Dioxide) 3.3 μg/m³
PM2.5 (Fine particles) 7.1 μg/m³
PM10 (Coarse particles) 9.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Brazil
Weather in Itaguaí — FAQ
Answers refreshed each request based on current conditions in Itaguaí.
What is the weather like right now in Itaguaí?
Right now in Itaguaí, Brazil the temperature is 22.0°C (feels like 24.5°C), with clear. Relative humidity is 61% and wind is 8.6 km/h.
What is today's high and low temperature in Itaguaí?
Today's forecast high in Itaguaí is 28.8°C and the overnight low is 14.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Itaguaí today?
The chance of precipitation in Itaguaí today is 2%. 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 Itaguaí differ from nearby cities?
Even short distances can change temperatures noticeably. Itaguaí'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.