Climate averages 1991–2020

Rionegro weather
in January.

A mild, wet month: the joint 9th warmest and the 4th driest of the year.

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

Average high 21.1°C Daytime mean, January

Average low 12.9°C Night-time mean, January

Rainfall 141 mm 21 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

January is a mild month in Rionegro: daytime highs average 21.1°C and nights cool to about 12.9°C. By daytime temperature it is the joint 9th warmest of the 12 months.

Expect about 141 mm of rain on roughly 21 days, which makes January a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 48 min on an average January day.

The nearest other city in this atlas is Medellín (24 km away). In January its highs average 24.2°C, 3.1°C warmer than Rionegro, with 134 mm of rain.

Among the 46 cities listed in Colombia, Rionegro ranks 38th of 46 for the warmest January highs and 37th of 46 for the driest January (rainfall, lowest first). The mean January high of those 46 cities is 26.5°C; Rionegro is 5.4°C cooler than that mean.

From January to February, average highs rise by 0.3°C to 21.4°C, and monthly rainfall rises from 141 mm to 159 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Rionegro climate table

1991–2020

Monthly climate averages for Rionegro, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	21.1°C12.9°C	12.9°C	141	21.3	11.812 h
February	21.4°C13.0°C	13.0°C	159	22.5	11.912 h
March	21.7°C13.2°C	13.2°C	267	27.1	12.112 h
April	21.5°C13.5°C	13.5°C	319	26.0	12.312 h
May	21.6°C13.6°C	13.6°C	272	24.9	12.412 h
June	21.9°C13.1°C	13.1°C	105	17.3	12.512 h
July	22.4°C12.7°C	12.7°C	69	12.2	12.412 h
August	23.1°C12.9°C	12.9°C	89	13.9	12.312 h
September	22.3°C13.0°C	13.0°C	176	21.4	12.212 h
October	21.1°C13.1°C	13.1°C	332	27.7	12.012 h
November	20.5°C13.2°C	13.2°C	369	28.5	11.812 h
December	20.8°C13.1°C	13.1°C	220	23.8	11.812 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

January in nearby cities

Distance from Rionegro

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