Fortaleza Weather in December
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.
Rainfall in Fortaleza in December
Expect around 15 days of rain based on historical data, with 37 mm (1.5 in) average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Fortaleza in December
Daytime temperatures in Fortaleza reach 31°C (88°F) in December, dropping to 26°C (79°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Fortaleza in December
Expect a lot of sunshine this month, with about 261 hours of sun. These sunny conditions add to the overall experience.
Average water temperature in December
With water at 27°C (81°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.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.
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 Fortaleza's climate page.
Fortaleza Temperature in December
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Water Temperature
27°C (81°F)
Chance of Rain
51%
Precipitation
37 mm (1.5 in)
Rainy days
15 days
Humidity
76%
Sunshine
261 hours
Percentage Sunshine
Daily Historical Temperatures
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).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Fortaleza in December
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.
Fortaleza historical weather extremes in December
Based on 26 years of weather observations in Fortaleza between 1999 and 2025, these are the recorded extremes.
- The hottest December day on record in Fortaleza reached 33°C (91°F) (December 19, 2005).
- On December 16, 2000, Fortaleza saw its coldest December day with temperatures maxing out at 26°C (79°F).
- The lowest overnight temperature recorded in December was 22°C (72°F) (December 18, 2010).
Best Places in Brazil in December
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 →
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What to Wear in Fortaleza in December
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.What To Do in Fortaleza in December
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 Fortaleza's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Fortaleza climate overview or explore weather in Brazil.
