Climate averages 1991–2020

Tatuí weather
in January.

A warm, very wet month: the joint 2nd warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 27.3°C Daytime mean, January
Average low 19.3°C Night-time mean, January
Rainfall 258 mm 22 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Tatuí · average highYear overview

January is a warm month in Tatuí: daytime highs average 27.3°C and nights cool to about 19.3°C. By daytime temperature it is the joint 2nd warmest of the 12 months.

Expect about 258 mm of rain on roughly 22 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 24 min on an average January day.

The nearest other city in this atlas is Itapetininga (33 km away). In January its highs average 26.9°C, about as warm as Tatuí, with 274 mm of rain.

Among the 448 cities listed in Brazil, Tatuí ranks joint 327th of 448 for the warmest January highs and 334th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Tatuí is 1.2°C cooler than that mean.

From January to February, average highs rise by 0.2°C to 27.5°C, and monthly rainfall falls from 258 mm to 174 mm.

The annual picture

January in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Tatuí climate table

1991–2020
Monthly climate averages for Tatuí, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 27.3°C19.3°C19.3°C25822.113.413 h
February 27.5°C19.3°C19.3°C17418.512.913 h
March 26.7°C18.5°C18.5°C13016.512.212 h
April 25.7°C16.7°C16.7°C587.811.612 h
May 23.0°C13.9°C13.9°C626.611.011 h
June 22.1°C12.4°C12.4°C495.210.711 h
July 22.3°C11.7°C11.7°C424.610.811 h
August 24.1°C12.5°C12.5°C384.311.311 h
September 25.7°C14.6°C14.6°C828.811.912 h
October 26.6°C16.3°C16.3°C11412.412.613 h
November 26.4°C17.0°C17.0°C14514.513.213 h
December 27.3°C18.5°C18.5°C19119.413.514 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Tatuí

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Tatuí) is explained once on the Tatuí year overview and on the Sources, method and limits page.