Climate averages 1991–2020

Samambaia weather
in October.

A warm, wet month: the 2nd warmest and the 7th driest of the year.

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

Average high 27.9°C Daytime mean, October
Average low 18.2°C Night-time mean, October
Rainfall 122 mm 15 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Samambaia · average highYear overview

October is a warm month in Samambaia: daytime highs average 27.9°C and nights cool to about 18.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 122 mm of rain on roughly 15 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average October day.

The nearest other city in this atlas is Riacho Fundo II (6 km away). In October its highs average 28.2°C, about as warm as Samambaia, with 122 mm of rain.

Among the 448 cities listed in Brazil, Samambaia ranks joint 243rd of 448 for the warmest October highs and joint 277th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Samambaia is 0.4°C cooler than that mean.

From October to November, average highs fall by 2.5°C to 25.4°C, and monthly rainfall rises from 122 mm to 226 mm.

The annual picture

October 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. 101520253035 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 2500

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

Every month, side by side

Samambaia climate table

1991–2020
Monthly climate averages for Samambaia, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 25.3°C17.6°C17.6°C23022.313.013 h
February 25.5°C17.5°C17.5°C19519.912.613 h
March 25.3°C17.5°C17.5°C21421.812.212 h
April 25.2°C16.8°C16.8°C9313.311.812 h
May 24.9°C15.4°C15.4°C213.411.411 h
June 24.5°C14.2°C14.2°C4.70.811.211 h
July 24.7°C13.9°C13.9°C0.30.111.311 h
August 26.6°C15.3°C15.3°C6.41.511.612 h
September 28.5°C17.5°C17.5°C355.512.012 h
October, selected 27.9°C18.2°C18.2°C12214.812.412 h
November 25.4°C17.6°C17.6°C22622.512.813 h
December 25.2°C17.7°C17.7°C24523.813.013 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

October in nearby cities

Distance from Samambaia

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

Valparaíso de Goiás, Gama and Santa Maria, Brazil lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.