Climate averages 1991–2020

Ciudad Guayana weather
in December.

A hot, moderately wet month: the coolest and the 5th driest of the year.

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

Average high 29.3°C Daytime mean, December
Average low 22.6°C Night-time mean, December
Rainfall 48 mm 10 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Ciudad Guayana · average highYear overview

December is a hot month in Ciudad Guayana: daytime highs average 29.3°C and nights cool to about 22.6°C. By daytime temperature it is the coolest month of the year.

Expect about 48 mm of rain on roughly 10 days, which makes December a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 39 min on an average December day.

The nearest other city in this atlas is Upata (45 km away). In December its highs average 29.3°C, about as warm as Ciudad Guayana, with 63 mm of rain.

Among the 65 cities listed in Venezuela, Ciudad Guayana ranks joint 32nd of 65 for the warmest December highs and 37th of 65 for the driest December (rainfall, lowest first). The mean December high of those 65 cities is 29.1°C; Ciudad Guayana is 0.2°C warmer than that mean.

From December to January, average highs rise by 0.3°C to 29.6°C, and monthly rainfall falls from 48 mm to 23 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 2000

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

Every month, side by side

Ciudad Guayana climate table

1991–2020
Monthly climate averages for Ciudad Guayana, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.6°C22.1°C22.1°C234.411.712 h
February 30.6°C22.2°C22.2°C112.211.912 h
March 32.1°C22.7°C22.7°C111.912.112 h
April 32.9°C23.5°C23.5°C324.912.312 h
May 31.9°C23.6°C23.6°C10612.612.512 h
June 29.9°C23.1°C23.1°C16520.612.613 h
July 29.4°C22.7°C22.7°C19124.312.613 h
August 30.1°C22.9°C22.9°C16122.612.412 h
September 31.3°C23.3°C23.3°C11217.312.212 h
October 31.5°C23.5°C23.5°C8915.911.912 h
November 30.3°C23.2°C23.2°C8515.911.712 h
December, selected 29.3°C22.6°C22.6°C4810.211.612 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 Ciudad Guayana

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