Fortaleza weather in December
In December, Fortaleza has an average high of 30 °C86 °F and an average low of 26 °C79 °F, with about 24 mm1.0 in of precipitation. December is the warmest month of the year and ranks 8th for precipitation.
How December compares with other months
Compared with November, December is about the same temperature and wetter by 18 mm0.7 in. Compared with January, December is about the same temperature and drier by 103 mm4.1 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 74% and the average cloud amount 52%.
Is December a good time to visit Fortaleza?
Yes — December is one of the most comfortable months to visit Fortaleza by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Fortaleza in December, pack light summer clothes such as T-shirts, shorts or light dresses.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Fortaleza | 3086 | 2679 | 241.0 |
| Maracanaú | 3392 | 2475 | 291.1 |
| Itapipoca | 3290 | 2475 | 230.9 |
| Sobral | 3696 | 2374 | 240.9 |
| Mossoró | 3494 | 2476 | 150.6 |
| Parnaíba | 3493 | 2476 | 291.1 |
| Juazeiro do Norte | 3595 | 2373 | 692.7 |
| São Gonçalo do Amarante | 3493 | 2374 | 210.8 |
| Natal | 2883 | 2679 | 261.0 |
Nearby places that are more than 1 °C1.8 °F warmer in December: Sobral, Mossoró and Parnaíba.
Other months in Fortaleza
- January29 °C85 °F / 26 °C78 °F
- February29 °C84 °F / 26 °C79 °F
- March29 °C84 °F / 26 °C79 °F
- April28 °C83 °F / 26 °C79 °F
- May29 °C84 °F / 26 °C78 °F
- June28 °C83 °F / 25 °C77 °F
- July29 °C83 °F / 24 °C76 °F
- August29 °C84 °F / 24 °C76 °F
- September30 °C85 °F / 25 °C76 °F
- October30 °C86 °F / 25 °C77 °F
- November30 °C86 °F / 26 °C78 °F
- December30 °C86 °F / 26 °C79 °F
Frequently asked questions
How warm is Fortaleza in December?
In December the average high in Fortaleza is 30 °C (86 °F) and the average low is 26 °C (79 °F).
Does it rain a lot in Fortaleza in December?
On average about 24 mm (1.0 in) of precipitation falls in December; it ranks 8th of the 12 months.
Is December the warmest month in Fortaleza?
No. The warmest month in Fortaleza is November, with an average high of 30 °C (86 °F). The coldest month is August, with an average low of 24 °C (76 °F).
How long is the day in Fortaleza in December?
In the middle of December the day in Fortaleza lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Fortaleza in December?
The average relative humidity in December is about 74%. Combined with warm days, it can feel muggy.
How cloudy is Fortaleza in December?
On average about 52% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.