Climate averages 1991–2020
Gualeguaychú weather
in August.
A mild, moderately wet month: the 10th warmest and the joint 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Gualeguaychú: daytime highs average 17.9°C and nights cool to about 8.5°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 87 mm of rain on roughly 7 days, which makes August a moderately wet month (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 54 min on an average August day.
The nearest other city in this atlas is Paysandú (87 km away). In August its highs average 18.4°C, about as warm as Gualeguaychú, with 89 mm of rain.
Among the 67 cities listed in Argentina, Gualeguaychú ranks 24th of 67 for the warmest August highs and 64th of 67 for the driest August (rainfall, lowest first). The mean August high of those 67 cities is 17.2°C; Gualeguaychú is 0.7°C warmer than that mean.
From August to September, average highs rise by 1.7°C to 19.7°C, and monthly rainfall stays at 87 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages 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
| 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 | 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, selected | 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
August in nearby cities
- Paysandú in AugustUruguay · 87 kmHigh 18.4°C · Low 8.6°C · 89 mm rain
- Zárate in AugustArgentina · 130 kmHigh 17.2°C · Low 7.5°C · 69 mm rain
- Campana in AugustArgentina · 135 kmHigh 17.2°C · Low 7.3°C · 64 mm rain
- San Nicolás de los Arroyos in AugustArgentina · 162 kmHigh 17.8°C · Low 8.6°C · 56 mm rain
- Pilar in AugustArgentina · 165 kmHigh 16.8°C · Low 7.2°C · 61 mm rain
- Don Torcuato in AugustArgentina · 166 kmHigh 16.2°C · Low 8.1°C · 63 mm rain
- José C. Paz in AugustArgentina · 169 kmHigh 16.7°C · Low 7.4°C · 63 mm rain
- San Miguel, Argentina in AugustArgentina · 172 kmHigh 16.5°C · Low 7.7°C · 63 mm rain
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 limitsHow 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.