Guarujá Weather in January
Thinking of visiting Guarujá in January? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 24°C (75°F) at night, and be prepared for the wettest month of the year.
Rainfall in Guarujá in January
Guarujá is in the rainy season in January, with rain on around 21 days and an average of 241 mm (9.5 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Guarujá in January
Daytime temperatures in Guarujá reach 28°C (82°F) in January, dropping to 24°C (75°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Guarujá in January
The month brings about 157 hours of sunlight, offering a comfortable mix of sun and rainy moments.If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Guarujá. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Brazil, check out our Guarujá's climate page.
Guarujá Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
28°C (82°F)
Chance of Rain
69%
Precipitation
241 mm (9.5 in)
Rainy days
21 days
Humidity
78% *
Sunshine
157 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Guarujá typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Guarujá in January
Browse day-by-day weather records for Guarujá spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guarujá historical weather extremes in January
Based on 49 years of weather observations in Guarujá between 1976 and 2025, these are the recorded extremes.
- Guarujá recorded its highest January temperature of 40°C (104°F) on January 2, 2014.
- Guarujá experienced its chilliest January day on January 27, 2012, reaching only 20°C (68°F).
- The lowest overnight temperature recorded in January was 12°C (54°F) (January 15, 2013).
Best Places in Brazil in January
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in January →
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What to Wear in Guarujá in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Guarujá in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Brazil, check out our Guarujá's climate page.
Temperature Rainfall Sunshine Humidity
See the full Guarujá climate overview or explore weather in Brazil.
