Climate averages 1991–2020

Gualeguaychú weather
in March.

A warm, wet month: the 4th warmest and the 9th driest of the year. Meets the pleasant-weather rule

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

Average high 26.4°C Daytime mean, March

Average low 17.5°C Night-time mean, March

Rainfall 121 mm 8 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

March is a warm month in Gualeguaychú: daytime highs average 26.4°C and nights cool to about 17.5°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 121 mm of rain on roughly 8 days, which makes March a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average March day.

The nearest other city in this atlas is Paysandú (87 km away). In March its highs average 26.8°C, about as warm as Gualeguaychú, with 122 mm of rain.

Among the 67 cities listed in Argentina, Gualeguaychú ranks 23rd of 67 for the warmest March highs and joint 54th of 67 for the driest March (rainfall, lowest first). The mean March high of those 67 cities is 25.6°C; Gualeguaychú is 0.8°C warmer than that mean.

From March to April, average highs fall by 3.7°C to 22.7°C, and monthly rainfall rises from 121 mm to 130 mm.

The annual picture

March 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

Gualeguaychú climate table

1991–2020

Monthly climate averages for Gualeguaychú, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	29.9°C20.1°C	20.1°C	110	7.7	14.114 h
February	28.3°C19.3°C	19.3°C	117	8.1	13.313 h
March, selected	26.4°C17.5°C	17.5°C	121	8.0	12.312 h
April	22.7°C14.2°C	14.2°C	130	7.9	11.311 h
May	18.9°C11.1°C	11.1°C	80	6.1	10.410 h
June	16.2°C8.3°C	8.3°C	69	6.5	10.010 h
July	15.4°C7.2°C	7.2°C	64	6.0	10.210 h
August	17.9°C8.5°C	8.5°C	87	6.5	10.911 h
September	19.7°C10.1°C	10.1°C	87	7.0	11.912 h
October	22.5°C13.1°C	13.1°C	124	9.8	12.913 h
November	25.8°C15.6°C	15.6°C	104	6.9	13.814 h
December	28.6°C18.3°C	18.3°C	128	8.6	14.314 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

March in nearby cities

Distance from Gualeguaychú

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