Climate averages 1991–2020

Rionegro weather
in August.

A warm, moderately wet month: the warmest and the 2nd driest of the year.

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

Average high 23.1°C Daytime mean, August

Average low 12.9°C Night-time mean, August

Rainfall 89 mm 14 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

August is a warm month in Rionegro: daytime highs average 23.1°C and nights cool to about 12.9°C. By daytime temperature it is the warmest month of the year.

Expect about 89 mm of rain on roughly 14 days, which makes August a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average August day.

The nearest other city in this atlas is Medellín (24 km away). In August its highs average 25.5°C, 2.4°C warmer than Rionegro, with 180 mm of rain.

Among the 46 cities listed in Colombia, Rionegro ranks 35th of 46 for the warmest August highs and 15th of 46 for the driest August (rainfall, lowest first). The mean August high of those 46 cities is 26.5°C; Rionegro is 3.4°C cooler than that mean.

From August to September, average highs fall by 0.8°C to 22.3°C, and monthly rainfall rises from 89 mm to 176 mm.

The annual picture

August 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	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, selected	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

August 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.