Climate averages 1991–2020

Chía weather
in September.

A mild, fairly dry month: the warmest and the 3rd driest of the year.

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

Average high 19.6°C Daytime mean, September
Average low 10.6°C Night-time mean, September
Rainfall 34 mm 10 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Chía · average highYear overview

September is a mild month in Chía: daytime highs average 19.6°C and nights cool to about 10.6°C. By daytime temperature it is the warmest month of the year.

Expect about 34 mm of rain on roughly 10 days, which makes September a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average September day.

The nearest other city in this atlas is Zipaquirá (19 km away). In September its highs average 19.8°C, about as warm as Chía, with 77 mm of rain.

Among the 46 cities listed in Colombia, Chía ranks joint 43rd of 46 for the warmest September highs and 2nd of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 26.4°C; Chía is 6.8°C cooler than that mean.

From September to October, average highs fall by 0.7°C to 18.9°C, and monthly rainfall rises from 34 mm to 100 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. 510152025 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 1500

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

Every month, side by side

Chía climate table

1991–2020
Monthly climate averages for Chía, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 19.2°C10.4°C10.4°C6014.111.912 h
February 19.5°C10.8°C10.8°C8415.412.012 h
March 19.3°C11.2°C11.2°C14018.812.112 h
April 18.7°C11.4°C11.4°C14819.712.212 h
May 18.4°C11.3°C11.3°C9616.312.312 h
June 18.4°C11.1°C11.1°C3910.212.412 h
July 18.5°C10.8°C10.8°C339.412.412 h
August 19.4°C10.8°C10.8°C247.312.312 h
September, selected 19.6°C10.6°C10.6°C3410.412.112 h
October 18.9°C10.6°C10.6°C10017.912.012 h
November 18.5°C10.7°C10.7°C12920.611.912 h
December 18.7°C10.5°C10.5°C7715.811.812 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 Chía

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