Climate averages 1991–2020

Santa Inês weather
in August.

A hot, very dry month: the 4th warmest and the driest of the year.

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

Average high 33.0°C Daytime mean, August
Average low 23.6°C Night-time mean, August
Rainfall 11 mm 3 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Santa Inês · average highYear overview

August is a hot month in Santa Inês: daytime highs average 33.0°C and nights cool to about 23.6°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 11 mm of rain on roughly 3 days, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average August day.

The nearest other city in this atlas is Bacabal (91 km away). In August its highs average 33.9°C, 0.9°C warmer than Santa Inês, with 5.4 mm of rain.

Among the 448 cities listed in Brazil, Santa Inês ranks joint 31st of 448 for the warmest August highs and joint 104th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Santa Inês is 6.8°C warmer than that mean.

From August to September, average highs rise by 1.1°C to 34.0°C, and monthly rainfall rises from 11 mm to 12 mm.

The annual picture

August 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 3500

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

Every month, side by side

Santa Inês climate table

1991–2020
Monthly climate averages for Santa Inês, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.2°C23.6°C23.6°C25325.412.312 h
February 29.6°C23.4°C23.4°C27826.012.212 h
March 29.4°C23.3°C23.3°C34129.512.112 h
April 29.4°C23.4°C23.4°C31027.912.012 h
May 29.8°C23.5°C23.5°C16321.512.012 h
June 30.3°C23.3°C23.3°C5511.611.912 h
July 31.2°C23.1°C23.1°C326.411.912 h
August, selected 33.0°C23.6°C23.6°C112.812.012 h
September 34.0°C24.3°C24.3°C122.112.112 h
October 34.4°C24.8°C24.8°C194.012.212 h
November 33.7°C24.8°C24.8°C498.012.312 h
December 32.3°C24.5°C24.5°C12015.312.312 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

August in nearby cities

Distance from Santa Inês

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