Weather in Fortaleza in January

Shoulder season. January is shoulder season in Fortaleza — cheaper, quieter, and a genuine gamble. You should expect rain on 18 days of the month, which is more days wet than dry.

January ranks 8 of 12 in Fortaleza: past the worst of the year but short of August, which is the month to book if the dates are open.

Rain on 18 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29.6 °C days and 26.1 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 12 days top 30 °C — hot spells arrive, but they break; the day barely swings — 3.4 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest January day reached 31.5 °C and the coldest night fell to 24.4 °C, and the wettest single day dropped 59 mm — roughly 46% of the month's rain in one day.

January is moderately variable: 41 mm in the driest year against 363 mm in the wettest, around an average of 128 mm. Roughly two Januarys in three land near that average, and the third does something else entirely.

Wind sits around 17.2 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How January sits in the year

Temperatures hold steady either side: 30.2 °C in December, 29.6 here, 29.2 in February. Nothing about the timing within the month matters much. Rain has already shifted: 12 days more than December had.

Daylight in January

Fortaleza sits close enough to the equator that daylight barely moves all year — 12.3 hours in January, against a range of just 0.4 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 27.8 °C in January — warm enough that the water offers no relief from the heat. The sea peaks at 28.8 °C in April and bottoms out at 26.6 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

January in Fortaleza versus nearby

If Fortaleza is one option among several, the nearby comparison is worth making. Recife is close enough to be a coin toss — within a degree on temperature, 3 days less rain. Maceió is close enough to be a coin toss — within a degree on temperature, 4 days less rain.

So: January is a compromise. August is 31 points better and is what Fortaleza is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Fortaleza

See all twelve months in Fortaleza, or where else to go in January.