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Grajaú weather

Sao Paulo · 384,873 inhabitants · Thursday, October 29 · updated 14:51

Raining now Air: Moderate Moderate storm risk · Tomorrow, Mon, Tue

20°

Light rain

Feels like 20°C

Wind

5 km/h

Gusts

14 km/h

Humidity

89 %

Pressure

1015 hPa

Clouds

74 %

Storm

Rise 05:22 Set 18:18 Day 12 h 56 min UV 4 · Moderate

Morning, afternoon, evening

Trend

Afternoon

Light rain

22°20°

Feels like 27°

Wind ↑ S 5 km/h

Gusts 14 km/h

Humidity 73 %

💧 4.6 mm

Evening

Light rain

18°

Feels like 18°

Wind ↑ W 6 km/h

Gusts 14 km/h

Humidity 95 %

💧 6.9 mm

15:00

20°

4.1mm

S 5

18:00

18°

2.8mm

W 6

Grajaú forecast in charts · next 7 days

The week ahead: highs and lows

≈ A week close to the usual temperatures

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Grajaú climate: what a normal year looks like

A normal year brings roughly 1,950 mm of rain — more than 87% of the towns of 20,000+ people we compared it with.

The hottest stretch is February, when afternoons average 27 °C; the coldest is July, when nights average 13 °C.

From 10 h 40 min of daylight in late June to 13 h 36 min in late December.

The coming week looks normal for October: forecast highs average 25 °C, against a usual 25 °C.

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall
Jan	27 °C	20 °C	315 mm
Feb	28 °C	20 °C	266 mm
Mar	27 °C	19 °C	248 mm
Apr	26 °C	18 °C	110 mm
May	23 °C	15 °C	90 mm
Jun	22 °C	14 °C	69 mm
Jul	22 °C	13 °C	78 mm
Aug	23 °C	13 °C	62 mm
Sep	23 °C	15 °C	122 mm
Oct	25 °C	17 °C	152 mm
Nov	25 °C	17 °C	202 mm
Dec	27 °C	19 °C	240 mm
Whole year	25 °C	16 °C	1,950 mm

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 23.77° S, 46.67° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Grajaú: pollution and pollen

3/6

Moderate

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.522µg/m³

PM1024µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Grajaú

Rain observed over the last two hours by official weather radars around Grajaú, followed by the radar forecast for the next hour where the weather service provides one.

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Grajaú yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Grajaú

Waning gibbous

87 % illuminated · 18.3 days

Rise 16:10 Set 01:54

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Moonrise and moonset in local time (America/Sao_Paulo); phase and lit fraction from a synodic calculation.

Look up a past day in Grajaú

Curious about the weather in Grajaú on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Grajaú weather at a glance

This page gathers everything about the weather in Grajaú, Sao Paulo: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “light rain”, it is 20 °C (feels like 20 °C) and the wind blows at 5 km/h.

Expected range today: 15 °C to 22 °C and around 8 mm of rain; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Other big cities nearby

Diadema 11 km 18°

Jardim Angela 12 km 18°

São Bernardo Do Campo 14 km 19°

Santo André 18 km 19°

Mauá 24 km 19°

São Paulo 25 km 20°

Osasco 29 km 20°

Carapicuíba 32 km 19°

Grajaú weather data for developers

Use the Grajaú forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

Create a free key

Where does this forecast come from? Our engine, checked every day against 1125 weather stations