Climate averages 1991–2020

Colón weather
in December.

A warm, very wet month: one of the coolest and the 5th driest of the year.

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

Average high 27.4°C Daytime mean, December
Average low 24.6°C Night-time mean, December
Rainfall 190 mm 26 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Colón · average highYear overview

December is a warm month in Colón: daytime highs average 27.4°C and nights cool to about 24.6°C. By daytime temperature it is one of the coolest months of the year.

Expect about 190 mm of rain on roughly 26 days, which makes December a very wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average December day.

The nearest other city in this atlas is Arraiján (55 km away). In December its highs average 27.6°C, about as warm as Colón, with 124 mm of rain.

Among the 6 cities listed in Panama, Colón ranks 6th of 6 for the warmest December highs and 6th of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 28.4°C; Colón is 0.9°C cooler than that mean.

From December to January, average highs stay level at 27.4°C, and monthly rainfall falls from 190 mm to 63 mm.

The annual picture

December 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. 20253035 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

Colón climate table

1991–2020
Monthly climate averages for Colón, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.4°C24.8°C24.8°C6315.411.612 h
February 27.6°C24.8°C24.8°C369.911.812 h
March 27.9°C24.9°C24.9°C4111.612.112 h
April 28.3°C25.1°C25.1°C12720.112.312 h
May 28.4°C24.7°C24.7°C28429.412.513 h
June 28.5°C24.5°C24.5°C28929.412.713 h
July 28.1°C24.4°C24.4°C33430.512.613 h
August 28.2°C24.3°C24.3°C32530.612.412 h
September 28.3°C24.2°C24.2°C30029.512.212 h
October 28.1°C24.1°C24.1°C32030.111.912 h
November 27.5°C24.0°C24.0°C34129.011.712 h
December, selected 27.4°C24.6°C24.6°C19025.511.612 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

December in nearby cities

Distance from Colón

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