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Fortaleza in December averages 31°C (88°F) during the day and 26°C (79°F) at night. Some rainfall is typical for this time of year.
For Fortaleza itself, August, September, October and November generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Fortaleza - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Fortaleza typically stay consistent throughout December, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Fortaleza spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 26 years of weather observations in Fortaleza between 1999 and 2025, these are the recorded extremes.
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in December →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in December. 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). Some rain is possible, so pack something to handle light showers. The water temperature sits at about 27°C (81°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Fortaleza climate overview or explore weather in Brazil.
Where to go in December - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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