Middle of the wetter season · Weather & things to do
Ilha Grande in January
Ilha Grande's warmest month brings highs averaging 86°F (30°C), lows of 75°F (24°C) and about 8.9 in (227 mm) of rain.
With a comfort score of 42/100 (12th of 12), it's one of the toughest months, held back mainly by rain.
- Avg high
- 86°F (30°C)
- Avg low
- 75°F (24°C)
- Rain
- 8.9 in (227 mm)
- Humidity
- 83%
- Cloud cover
- 72%
- Daylight
- ~13 h 17 min
- Comfort score
- 42/100 · Tough
What January feels like
Days are warm, averaging 86°F (30°C).
Even at night it stays warm, around 75°F (24°C).
Humidity averages 83%, so the air feels sticky and the heat feels stronger than the thermometer says.
Rain is a real factor, with about 8.9 in (227 mm) across the month.
Plan around January
January is one of the lower-scoring months here; the best are June – August.
- Inside the wettest three-month stretch, November – January.
- Comfort slips from 47/100 in December to 42/100.
- Our Rio, Ilha Grande & Paraty route recommends Apr – Jun, Sep – Nov, so January falls outside its suggested window.
What to pack for January
- Light, breathable clotheshighs average 86°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Quick-dry fabrics83% average humidity
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost picks involve some walking
What to do in Ilha Grande in January
With 8.9 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Casarão da Ilha
Long-established spot near the pier for drinks and food as the boats come in.
Why now A sit-down stop to wait out showers in a month with 8.9 in of rain.
Lua e Mar
Beachfront restaurant on Abraão's sand, known for moqueca and fish with green banana.
Why now Easy to slot in when January's rain moves in.
Vila do Abraão
The island's main village of sand lanes, pousadas, a white church and boat docks.
Why now An indoor-leaning stop for a month with 8.9 in of rain.
Restaurante Dom Mario
Small, popular restaurant with generous seafood plates at fair prices.
Why now Keeps part of the day dry on wetter January days.
Lagoa Azul
Shallow lagoon between islets with clear water for snorkeling, usually on a boat tour.
Nearby in January
- Paraty in January~35 mi · highs 89°F, 9.0 in rain · 2°C (3°F) warmer by day, about as wet
- Rio de Janeiro in January~65 mi · highs 83°F, 8.2 in rain · 1°C (3°F) cooler by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~438 m to Ilha Grande's ~6 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Ilha Grande in January: quick answers
Is January a good time to visit Ilha Grande?
It's one of the tougher months here, scoring 42/100, held back mainly by rain. The best months are June – August. Expect highs of 86°F (30°C) and 8.9 in (227 mm) of rain. Our Rio, Ilha Grande & Paraty route recommends Apr – Jun, Sep – Nov, so January is outside its suggested window.
How hot is Ilha Grande in January?
Average highs are 86°F (30°C) and average lows 75°F (24°C), making it the warmest month by daytime highs.
Does it rain a lot in Ilha Grande in January?
Yes: about 8.9 in (227 mm) of rain falls across January on average, the wettest month of the year. The annual total is about 58.1 in (1475 mm).
What should I pack for Ilha Grande in January?
Bring light, breathable clothes (highs average 86°F), sunscreen, sunglasses and a hat (high UV on clear days), quick-dry fabrics (83% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most picks involve some walking).
More on Ilha Grande
Planning Ilha Grande in January?
Share this January plan with your group, poll everyone on dates and keep the packing list in one place.