
São Mateus is turning on a proper sunny day, the kind that makes you want to leave the windows open all afternoon. The air carries that soft, coastal warmth, though the sun is strong enough that you’ll feel it on your skin by midday.
Temperatures hover around 28 degrees at the peak, slipping to a comfortable 18 overnight, and with humidity sitting near 76 percent, it’ll feel a touch muggier than the thermometer suggests. You won’t need a jacket, but a light shirt that breathes will keep you happier than something heavy.
There’s a tiny chance of a sprinkle, barely half a millimeter, so don’t cancel plans over it. A steady breeze from the east at about 15 kilometers per hour keeps things from getting stuffy, and it’s just enough to stir the leaves without scattering your papers.
If you’re heading out, aim for the late morning or early evening when the sun isn’t at its harshest; the UV is high enough that a hat or sunscreen is worth grabbing. Otherwise, enjoy the glow, keep water handy, and let the day unfold at its own easy pace.
Weather map
Wind, rain and temperature — São MateusDetails
Humidity • Wind • SunNext 24h
33° 19°Wind
Speed and direction of windAir quality
PM2.5 • PM10Sun times
Sunrise and sunsetDistricts
São João de MeritiNearby cities
São João de Meriti and regionToday's weather in São Mateus, São João de Meriti (RJ)
Today's weather in the district of São Mateus, São João de Meriti (Rio de Janeiro) with up-to-date data: temperature, feels-like, humidity, wind, atmospheric pressure, visibility, UV index and chance of rain throughout the day. See temperature variation, estimated precipitation and hour-by-hour details.


