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São João de Meriti has a hot semi-arid climate.
Dry country, big sun, modest rain — here's what that means in plain terms.
What this climate feels like
The four things a regular visitor actually wants to know:
Highs near 91°F in February.
Lows near 63°F in July.
About 16 in of rain a year. Wettest in December.
A roughly even mix of sun and cloud.
What "hot semi-arid" means
Climate scientists sort every place on Earth into about 30 climate types, based on how hot, cold, wet and dry it is across the year. São João de Meriti's type — hot semi-arid — sits in the broad family of dry climates — deserts and steppes.
Researchers write climate types as a short letter code. Here is what each letter means:
Cities with the same climate as São João de Meriti
A hot semi-arid climate (BSh) — these recognizable cities share it. If you know one of them, you know roughly what to expect.
São João de Meriti sits near a climate boundary
This city sits right on the line between hot semi-arid and the next type along. Different climate maps file it on different sides of that line; the lived weather doesn't change at the line — it's a naming boundary, not a wall.
Has São João de Meriti's climate type changed?
Stable — São João de Meriti's climate has held the same type between the 1971–2000 and 1991–2020 normals. The label is steady; the climate beneath it is still warming.
What this climate means for you
Native grasses, drought-tolerant shrubs and hardy fruit trees (figs, pomegranate, olives) do well. Vegetable gardens need irrigation.
Cool half of the year is comfortable; summer is hot and dusty. Watch for wet-season storms during the short rainy stretch.
Hot, dry and dusty — drought is a recurring issue. Comfortable winters; tough, sun-blasted summers.
Where these numbers come from
The climate type and the month-by-month figures on this page are computed from São João de Meriti's measured 30-year climate normals (1991–2020) — the same official records behind São João de Meriti's main climate page, so the two always agree.
Long-range climate maps measure things slightly differently and can place a city in a neighbouring category. Where they differ, this page uses the measured station record as the climate today.
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Galeao Antonio Carlos Jobim, a weather station, about 13 km from the city centre. The underlying daily records come from NOAA's global station network.