Climate averages 1991–2020
Gualeguaychú weather
in July.
A mild, moderately wet month: the coolest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Gualeguaychú: daytime highs average 15.4°C and nights cool to about 7.2°C. By daytime temperature it is the coolest month of the year.
Expect about 64 mm of rain on roughly 6 days, which makes July a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 12 min on an average July day.
The nearest other city in this atlas is Paysandú (87 km away). In July its highs average 15.8°C, about as warm as Gualeguaychú, with 72 mm of rain.
Among the 67 cities listed in Argentina, Gualeguaychú ranks joint 20th of 67 for the warmest July highs and joint 54th of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Gualeguaychú is 0.8°C warmer than that mean.
From July to August, average highs rise by 2.5°C to 17.9°C, and monthly rainfall rises from 64 mm to 87 mm.
The annual picture
July 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, selected | 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
July in nearby cities
- Paysandú in JulyUruguay · 87 kmHigh 15.8°C · Low 7.3°C · 72 mm rain
- Zárate in JulyArgentina · 130 kmHigh 14.6°C · Low 6.1°C · 59 mm rain
- Campana in JulyArgentina · 135 kmHigh 14.6°C · Low 6.0°C · 59 mm rain
- San Nicolás de los Arroyos in JulyArgentina · 162 kmHigh 15.1°C · Low 7.4°C · 42 mm rain
- Pilar in JulyArgentina · 165 kmHigh 14.3°C · Low 5.9°C · 58 mm rain
- Don Torcuato in JulyArgentina · 166 kmHigh 13.9°C · Low 6.8°C · 60 mm rain
- José C. Paz in JulyArgentina · 169 kmHigh 14.2°C · Low 6.1°C · 60 mm rain
- San Miguel, Argentina in JulyArgentina · 172 kmHigh 14.0°C · Low 6.3°C · 60 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.