Climate averages 1991–2020

Passos weather
in January.

A warm, very wet month: the 4th warmest and the wettest of the year.

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

Average high 27.7°C Daytime mean, January

Average low 19.8°C Night-time mean, January

Rainfall 243 mm 22 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

January is a warm month in Passos: daytime highs average 27.7°C and nights cool to about 19.8°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 243 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 14 min on an average January day.

The nearest other city in this atlas is São Sebastião do Paraíso (45 km away). In January its highs average 26.4°C, 1.3°C cooler than Passos, with 305 mm of rain.

Among the 448 cities listed in Brazil, Passos ranks joint 293rd of 448 for the warmest January highs and joint 289th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Passos is 0.8°C cooler than that mean.

From January to February, average highs rise by 0.3°C to 28.0°C, and monthly rainfall falls from 243 mm to 166 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Passos climate table

1991–2020

Monthly climate averages for Passos, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	27.7°C19.8°C	19.8°C	243	22.2	13.213 h
February	28.0°C19.7°C	19.7°C	166	18.3	12.813 h
March	27.3°C19.2°C	19.2°C	146	18.2	12.212 h
April	26.4°C17.6°C	17.6°C	54	9.1	11.612 h
May	24.4°C14.6°C	14.6°C	35	4.8	11.111 h
June	23.8°C12.9°C	12.9°C	15	2.5	10.911 h
July	24.2°C12.4°C	12.4°C	10	1.8	11.011 h
August	26.3°C13.5°C	13.5°C	13	2.5	11.411 h
September	28.2°C16.2°C	16.2°C	58	7.0	12.012 h
October	28.6°C18.3°C	18.3°C	94	13.5	12.613 h
November	27.4°C18.9°C	18.9°C	168	19.0	13.113 h
December	27.5°C19.6°C	19.6°C	236	23.6	13.413 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 Passos

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 Passos) is explained once on the Passos year overview and on the Sources, method and limits page.