Climate averages 1991–2020
San Nicolás de los Arroyos 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 San Nicolás de los Arroyos: daytime highs average 15.1°C and nights cool to about 7.4°C. By daytime temperature it is the coolest month of the year.
Expect about 42 mm of rain on roughly 5 days, which makes July a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 10 min on an average July day.
The nearest other city in this atlas is Gobernador Gálvez (52 km away). In July its highs average 15.3°C, about as warm as San Nicolás de los Arroyos, with 36 mm of rain.
Among the 67 cities listed in Argentina, San Nicolás de los Arroyos ranks 25th of 67 for the warmest July highs and 33rd of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; San Nicolás de los Arroyos is 0.5°C warmer than that mean.
From July to August, average highs rise by 2.7°C to 17.8°C, and monthly rainfall rises from 42 mm to 56 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
San Nicolás de los Arroyos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C20.3°C | 20.3°C | 103 | 8.2 | 14.114 h |
| February | 28.1°C19.5°C | 19.5°C | 109 | 8.1 | 13.313 h |
| March | 26.3°C17.8°C | 17.8°C | 117 | 7.4 | 12.312 h |
| April | 22.4°C14.5°C | 14.5°C | 106 | 8.1 | 11.311 h |
| May | 18.7°C11.5°C | 11.5°C | 66 | 6.0 | 10.410 h |
| June | 15.8°C8.7°C | 8.7°C | 44 | 5.2 | 10.010 h |
| July, selected | 15.1°C7.4°C | 7.4°C | 42 | 5.1 | 10.210 h |
| August | 17.8°C8.6°C | 8.6°C | 56 | 5.0 | 10.911 h |
| September | 20.0°C10.4°C | 10.4°C | 67 | 6.3 | 11.912 h |
| October | 22.7°C13.3°C | 13.3°C | 112 | 9.7 | 12.913 h |
| November | 25.9°C16.1°C | 16.1°C | 115 | 7.6 | 13.814 h |
| December | 28.4°C18.6°C | 18.6°C | 108 | 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
- Gobernador Gálvez in JulyArgentina · 52 kmHigh 15.3°C · Low 7.1°C · 36 mm rain
- Rosario in JulyArgentina · 59 kmHigh 15.4°C · Low 6.9°C · 36 mm rain
- Pergamino in JulyArgentina · 70 kmHigh 14.7°C · Low 6.1°C · 37 mm rain
- Zárate in JulyArgentina · 139 kmHigh 14.6°C · Low 6.1°C · 59 mm rain
- Campana in JulyArgentina · 148 kmHigh 14.6°C · Low 6.0°C · 59 mm rain
- Junín in JulyArgentina · 156 kmHigh 14.3°C · Low 5.6°C · 32 mm rain
- Gualeguaychú in JulyArgentina · 162 kmHigh 15.4°C · Low 7.2°C · 64 mm rain
- Venado Tuerto in JulyArgentina · 169 kmHigh 14.9°C · Low 5.9°C · 25 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 San Nicolás de los Arroyos) is explained once on the San Nicolás de los Arroyos year overview and on the Sources, method and limits page.