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Indaiatuba weather by month: averages, rainfall & climate trends

Temperatures in Indaiatuba stay within a narrow band all year, with the monthly means just 6.2°C apart. The heavier rain months run from October to March. Indaiatuba weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

+0.2°Chigh near average

27° / 14°Today
27° / 17°Average
see today in detail →

How it's changed

+2.0°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49127days above 30°C a year now (2016–2025) · 12 in the 1940sdays above 30°C · 12 in the 1940s+2.0°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 235 mmhigh 28°low 20°February, rain 188 mmhigh 28°low 20°March, rain 149 mmhigh 28°low 19°April, rain 74 mmhigh 27°low 17°May, rain 69 mmhigh 24°low 15°June, rain 49 mmhigh 23°low 13°July, rain 43 mmhigh 23°low 13°August, rain 38 mmhigh 26°low 14°September, rain 78 mmhigh 27°low 16°October, rain 142 mmhigh 27°low 17°November, rain 157 mmhigh 27°low 18°December, rain 228 mmhigh 28°low 19°wettest month January, 235 mm · 1,450 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Overcast

Right now

18.9°

18°feels like
78%humidity
15°dew point
15 km/hfrom SE
UV index0.0
sunrise05:30sunset18:15day length12h 45m
TodayOvercast27°14°
ThuOvercast24°18°
FriLight rain21°18°
SatOvercast24°20°
SunOvercast22°16°
MonPartly cloudy20°15°
TueOvercast26°15°

On this date: October 21

Today (forecast)
27° / 14°
Average for October 21
27° / 17°

High near average · +0.2°C

  • Highest since 1940: 36.0° · 1963
  • Lowest since 1940: 10.4° · 1981
  • One year ago: 24° / 11°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Indaiatuba is sampled from the ECMWF ERA5 reanalysis at 23.09°S, 47.21°W, with daily records since 1940.

Coordinates
23.09°S, 47.21°W
Time zone
America/Sao Paulo
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

13 of the last 31 days were warmer than the historical average for that date. Average difference: +0.2°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in February, at around 28.4°C by mid-afternoon, with nights around 19.7°C. Around 95 nights a year stay above 20°C. In July, the coolest month, afternoons reach about 23.5°C and nights dip to 12.5°C. Frost is essentially unknown.

In total, Indaiatuba averages about 1,450 mm of precipitation a year; January is usually the wettest month (235 mm) and August the driest (38 mm).

Comparing the record's first decade with its most recent one, Indaiatuba now averages 2.0°C warmer than it did in the 1940s. The count of days past 30°C has risen from roughly 12 a year to 125 between the record's first and last decades.

Climate graph (climograph)

February is the warmest month, July the coolest: a yearly swing of 6°C. Wettest month: January (~235 mm). Whole year averages ~1,450 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Indaiatuba month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainDaylightHighestLowest
January28.2°19.7°235 mm13.3 h40.4° (2015)12.2° (1943)
February28.4°19.7°188 mm12.8 h38.7° (2014)14.3° (1980)
March27.9°19.0°149 mm12.2 h35.5° (2018)11.5° (1987)
April26.5°17.2°74 mm11.5 h34.1° (2014)6.5° (1971)
May24.2°14.6°69 mm10.9 h33.6° (2024)3.6° (2022)
June23.3°13.1°49 mm10.6 h30.5° (2010)0.8° (1979)
July23.5°12.5°43 mm10.7 h31.7° (2014)1.7° (1981)
August25.6°13.7°38 mm11.2 h34.3° (2019)3.2° (1987)
September27.0°15.6°78 mm11.9 h38.1° (1961)5.0° (2002)
October27.3°17.2°142 mm12.6 h39.4° (2020)8.9° (1974)
November27.5°17.9°157 mm13.1 h38.1° (2023)10.0° (1970)
December27.7°19.1°228 mm13.4 h37.8° (2013)12.0° (1952)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +2.0°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.27°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Dec–Feb is warming fastest: +0.31°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 12.1 early in the record → 127.0 recently. Frost days: 0 → 0.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 2015, coldest in 1979: 40.4°C / 0.8°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~1,450 mm/year on average. Last decade: −22% vs that average. Long-term trend: −44 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Indaiatuba

Which is the warmest month in Indaiatuba?
On long-term average, the warmest month in Indaiatuba is February (mean daily temperature of about 23.6°C) and the coolest is July (about 17.4°C).
How does today's temperature in Indaiatuba compare to the historical average?
On October 21, 2026, Indaiatuba is forecast to reach a high of 27.2°C and a low of 14.1°C. The long-term average for this date (the full record since 1940) is a high of 27.0°C and a low of 17.0°C, so today's high is about equal to that average.
How much has Indaiatuba warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Indaiatuba is about 2.0°C warmer.
How much does it rain in Indaiatuba?
Indaiatuba receives about 1,450 mm of precipitation per year on long-term average, with January typically the wettest month.
What is the average temperature in Indaiatuba?
Over the full record (since 1940), the annual mean temperature in Indaiatuba is about 21.0°C. The warmest month is February and the coolest is July.
What are the average temperatures in Indaiatuba by month?
Average daily highs and lows for each month in Indaiatuba (°C, full record since 1940): January 28°/20°, February 28°/20°, March 28°/19°, April 27°/17°, May 24°/15°, June 23°/13°, July 23°/13°, August 26°/14°, September 27°/16°, October 27°/17°, November 27°/18°, December 28°/19°.
What is the weather like in Indaiatuba in summer?
In summer, December through February, Indaiatuba is wet and warm. Daytime highs sit at 28°C and nights at 19–20°C; February is the warmest month. About 217 mm of rain a month. No season is wetter.
What is the weather like in Indaiatuba in winter?
In winter, June through August, Indaiatuba is pleasantly warm. Afternoons run 23–26°C and nights 13–14°C; July is the coldest month. Rain is steady at around 44 mm a month. It is the driest season of the year.
What is the weather like in Indaiatuba in spring?
In spring, September through November, Indaiatuba is wet and warm. Expect 27°C by day and 16–18°C at night, with November the warmest month. Rain picks up through the season, 78 mm in September to 157 mm in November.
What is the weather like in Indaiatuba in autumn?
In autumn, March through May, Indaiatuba is warm. March is still 28°C by day and 19°C at night; by May it is down to 24°C and 15°C. Rain eases through the season, 149 mm in March to 69 mm in May.

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