Climate averages 1991–2020

Colombo, Brazil weather
in September.

A mild, 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 20.2°C Daytime mean, September
Average low 11.8°C Night-time mean, September
Rainfall 124 mm 10 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Colombo · average highYear overview

September is a mild month in Colombo, Brazil: daytime highs average 20.2°C and nights cool to about 11.8°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 124 mm of rain on roughly 10 days, which makes September a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average September day.

The nearest other city in this atlas is Almirante Tamandaré (9 km away). In September its highs average 21.0°C, 0.8°C warmer than Colombo, Brazil, with 124 mm of rain.

Among the 448 cities listed in Brazil, Colombo, Brazil ranks joint 438th of 448 for the warmest September highs and joint 366th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Colombo, Brazil is 7.3°C cooler than that mean.

From September to October, average highs rise by 1.4°C to 21.6°C, and monthly rainfall rises from 124 mm to 125 mm.

The annual picture

September 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 2500

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

Every month, side by side

Colombo, Brazil climate table

1991–2020
Monthly climate averages for Colombo, Brazil, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 24.3°C17.3°C17.3°C23322.913.514 h
February 24.3°C17.4°C17.4°C19320.213.013 h
March 23.4°C16.6°C16.6°C12617.412.312 h
April 21.8°C14.7°C14.7°C709.611.512 h
May 18.7°C11.7°C11.7°C868.810.911 h
June 17.8°C10.3°C10.3°C948.510.611 h
July 17.6°C9.5°C9.5°C857.410.711 h
August 19.2°C10.2°C10.2°C727.211.211 h
September, selected 20.2°C11.8°C11.8°C12410.411.912 h
October 21.6°C13.6°C13.6°C12514.112.713 h
November 22.3°C14.6°C14.6°C12314.813.313 h
December 24.0°C16.3°C16.3°C16418.713.714 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

September in nearby cities

Distance from Colombo

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

Almirante Tamandaré lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.