Climate averages 1991–2020

Castanhal weather
in June.

A hot, wet month: the 8th warmest and the 7th driest of the year.

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

Average high 29.7°C Daytime mean, June
Average low 22.7°C Night-time mean, June
Rainfall 120 mm 21 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Castanhal · average highYear overview

June is a hot month in Castanhal: daytime highs average 29.7°C and nights cool to about 22.7°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 120 mm of rain on roughly 21 days, which makes June a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average June day.

The nearest other city in this atlas is Santa Isabel do Pará (26 km away). In June its highs average 29.7°C, about as warm as Castanhal, with 132 mm of rain.

Among the 448 cities listed in Brazil, Castanhal ranks joint 49th of 448 for the warmest June highs and 383rd of 448 for the driest June (rainfall, lowest first). The mean June high of those 448 cities is 24.7°C; Castanhal is 5.0°C warmer than that mean.

From June to July, average highs rise by 0.3°C to 30.0°C, and monthly rainfall falls from 120 mm to 91 mm.

The annual picture

June 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. 2025303540 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 5000

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

Every month, side by side

Castanhal climate table

1991–2020
Monthly climate averages for Castanhal, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.8°C23.3°C23.3°C26927.012.212 h
February 29.0°C23.0°C23.0°C35727.212.212 h
March 28.9°C22.9°C22.9°C45630.512.112 h
April 28.9°C23.0°C23.0°C42729.612.112 h
May 29.4°C23.0°C23.0°C27827.712.112 h
June, selected 29.7°C22.7°C22.7°C12021.412.012 h
July 30.0°C22.6°C22.6°C9118.112.112 h
August 31.2°C23.0°C23.0°C5112.712.112 h
September 32.3°C23.4°C23.4°C348.612.112 h
October 33.1°C23.7°C23.7°C348.012.112 h
November 32.9°C24.0°C24.0°C498.712.212 h
December 31.8°C24.0°C24.0°C11817.212.212 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

June in nearby cities

Distance from Castanhal

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