Climate averages 1991–2020

Tumbes weather
in December.

A hot, fairly dry month: the warmest and the 7th driest of the year.

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

Average high 30.2°C Daytime mean, December
Average low 22.3°C Night-time mean, December
Rainfall 34 mm 6 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Tumbes · average highYear overview

December is a hot month in Tumbes: daytime highs average 30.2°C and nights cool to about 22.3°C. By daytime temperature it is the warmest month of the year.

Expect about 34 mm of rain on roughly 6 days, which makes December a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average December day.

The nearest other city in this atlas is Loja (146 km away). In December its highs average 21.3°C, 8.9°C cooler than Tumbes, with 146 mm of rain.

Among the 24 cities listed in Peru, Tumbes ranks 3rd of 24 for the warmest December highs and 14th of 24 for the driest December (rainfall, lowest first). The mean December high of those 24 cities is 24.6°C; Tumbes is 5.6°C warmer than that mean.

From December to January, average highs fall by 0.2°C to 30.0°C, and monthly rainfall rises from 34 mm to 74 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. 1520253035 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

Tumbes climate table

1991–2020
Monthly climate averages for Tumbes, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.0°C23.2°C23.2°C7412.312.312 h
February 29.5°C23.5°C23.5°C15016.812.212 h
March 29.6°C23.5°C23.5°C16716.612.112 h
April 29.7°C23.3°C23.3°C10312.312.012 h
May 29.7°C22.9°C22.9°C417.112.012 h
June 29.3°C21.8°C21.8°C9.82.511.912 h
July 29.2°C20.9°C20.9°C4.51.311.912 h
August 29.3°C20.4°C20.4°C1.10.312.012 h
September 29.3°C20.6°C20.6°C6.01.812.112 h
October 29.4°C20.9°C20.9°C9.62.812.212 h
November 29.6°C21.1°C21.1°C153.712.312 h
December, selected 30.2°C22.3°C22.3°C345.812.312 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 Tumbes

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