Climate averages 1991–2020

Montelíbano weather
in September.

A hot, very wet month: the 9th warmest and the 10th driest of the year.

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

Average high 29.8°C Daytime mean, September
Average low 23.4°C Night-time mean, September
Rainfall 182 mm 28 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Montelíbano · average highYear overview

September is a hot month in Montelíbano: daytime highs average 29.8°C and nights cool to about 23.4°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 182 mm of rain on roughly 28 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.

The nearest other city in this atlas is Montería (100 km away). In September its highs average 30.1°C, about as warm as Montelíbano, with 243 mm of rain.

Among the 46 cities listed in Colombia, Montelíbano ranks 12th of 46 for the warmest September highs and 21st of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 26.4°C; Montelíbano is 3.4°C warmer than that mean.

From September to October, average highs fall by 0.5°C to 29.4°C, and monthly rainfall rises from 182 mm to 206 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. 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 2500

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

Every month, side by side

Montelíbano climate table

1991–2020
Monthly climate averages for Montelíbano, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.1°C23.6°C23.6°C339.511.712 h
February 33.4°C24.7°C24.7°C398.611.912 h
March 33.1°C24.7°C24.7°C8916.712.112 h
April 31.1°C24.1°C24.1°C16925.312.312 h
May 30.0°C23.8°C23.8°C22428.712.512 h
June 30.0°C23.7°C23.7°C16325.212.613 h
July 30.1°C23.6°C23.6°C14924.612.513 h
August 30.1°C23.6°C23.6°C16126.212.412 h
September, selected 29.8°C23.4°C23.4°C18227.512.212 h
October 29.4°C23.2°C23.2°C20629.512.012 h
November 29.1°C23.1°C23.1°C17727.111.812 h
December 29.6°C23.2°C23.2°C9619.311.712 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 Montelíbano

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