Weather Forecast for Ilha Grande

Rio de Janeiro, Brazil

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Light rain shower

Current Weather - Ilha Grande: 23°C

Rio de Janeiro, Brazil

Light rain shower

Feels like 25°C

Wind

4 km/h ENE

Humidity

93%

Pressure

1014 mb

UV Index

2

Visibility

10 km

Moderate rain

Moderate rain

Thursday, March 12, 2026

High

24°C

Low

22°C

Rain Chance

96%

Hourly Forecast

Light rain shower 24°C
12:00
Light rain shower 24°C
13:00
Light rain shower 24°C
14:00
Light rain shower 24°C
15:00
Light rain shower 24°C
16:00
Light rain shower 23°C
17:00
Light rain shower 23°C
18:00
Light rain shower 23°C
19:00
Patchy rain nearby 23°C
20:00
Patchy rain nearby 23°C
21:00
Patchy rain nearby 23°C
22:00
Patchy rain nearby 23°C
23:00
Mar 13

Day Statistics

Maximum Wind

5 km/h

Humidity

92%

Precipitation

6 mm

UV Index

1

Visibility

9 km

Rain Chance

96%

Snow Chance

0%

Sun & Moon

Sunrise

05:58 AM

Sunset

06:16 PM

Moonrise

No moonrise

Moonset

01:56 PM

Moon Phase

Waning Crescent

Moon Illumination

44%

Air Quality

PM2.5

3.2

μg/m³

PM10

3.7

μg/m³

NO₂

5.7

μg/m³

O₃

52.7

μg/m³

SO₂

3.1

μg/m³

CO

171.1

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

5.66

Diffuse Radiation

3.93

DNI

1.92

GTI

5.17

When to visit Ilha Grande?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July August

January

☀️
27°C
💧
25 Days of rain
❄️
No snowfall
🌧 Wettest month,

February

☀️
28°C
💧
19 Days of rain
❄️
No snowfall
🔥 Hottest month

March

☀️
27°C
💧
22 Days of rain
❄️
No snowfall

April

☀️
26°C
💧
16 Days of rain
❄️
No snowfall

May

☀️
24°C
💧
14 Days of rain
❄️
No snowfall

June

☀️
24°C
💧
10 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
23°C
💧
11 Days of rain
❄️
No snowfall
Best time to visit

August

☀️
23°C
💧
9 Days of rain
❄️
No snowfall
Best time to visit
🥶 Coldest month
🌵 Driest month

September

☀️
23°C
💧
15 Days of rain
❄️
No snowfall

October

☀️
24°C
💧
16 Days of rain
❄️
No snowfall

November

☀️
24°C
💧
21 Days of rain
❄️
No snowfall

December

☀️
26°C
💧
19 Days of rain
❄️
No snowfall