El Niño in Fortaleza
During El Niño, Fortaleza gets on average 41% less rain in April–June than in neutral years (309 mm vs 525 mm).
Weather in Fortaleza: next 7 days
Fortaleza
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Weather forecast: MET Norway (CC BY 4.0), updated every hour. For official warnings, follow your national weather service.
El Niño is active right now: the El Niño columns show what Fortaleza typically sees in this phase.
Monthly rainfall by phase
El NiñoNeutralLa Niña
Month by month
| Month | El Niño | Neutral | La Niña | Change El Niño | Temp. El Niño / neutral |
|---|---|---|---|---|---|
| January | 94 mm | 110 mm | 127 mm | -14% | 27.6 / 27.3 °C |
| February | 158 mm | 158 mm | 146 mm | 0% | 27.6 / 27.2 °C |
| March | 215 mm | 265 mm | 284 mm | -19% | 27.5 / 27.1 °C |
| April | 166 mm | 267 mm | 299 mm | -38% | 27.4 / 27.0 °C |
| May | 79 mm | 155 mm | 212 mm | -49% | 27.2 / 27.2 °C |
| June | 65 mm | 103 mm | 94 mm | -37% | 26.8 / 26.7 °C |
| July | 44 mm | 46 mm | 31 mm | -4% | 26.4 / 26.2 °C |
| August | 10 mm | 13 mm | 7 mm | -20% | 26.4 / 26.5 °C |
| September | 4 mm | 7 mm | 3 mm | -36% | 26.8 / 26.8 °C |
| October | 5 mm | 3 mm | 6 mm | — | 27.2 / 27.2 °C |
| November | 6 mm | 4 mm | 8 mm | — | 27.6 / 27.5 °C |
| December | 27 mm | 29 mm | 25 mm | -8% | 27.7 / 27.6 °C |
NASA POWER (MERRA-2), 1981–2025, classified by NOAA ONI. Averages, not a forecast.
Frequently asked questions
How does El Niño affect Fortaleza?
During El Niño, Fortaleza gets on average 41% less rain in April–June than in neutral years (309 mm vs 525 mm).
And La Niña?
In April–June, La Niña years average 605 mm, compared with 525 mm in neutral years.
Where does this data come from?
Monthly rainfall and temperature from NASA POWER (MERRA-2 reanalysis, 1981–2025) at -3.73, -38.52, classified by NOAA's Oceanic Niño Index for each month. These are averages; each event is different.