Climate averages 1991–2020
Mar del Plata weather
in July.
A cool, moderately wet month: the coolest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Mar del Plata: daytime highs average 11.8°C and nights cool to about 5.8°C. By daytime temperature it is the coolest month of the year.
Expect about 54 mm of rain on roughly 7 days, which makes July a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 48 min on an average July day.
The nearest other city in this atlas is Necochea (120 km away). In July its highs average 11.7°C, about as warm as Mar del Plata, with 52 mm of rain.
Among the 67 cities listed in Argentina, Mar del Plata ranks joint 60th of 67 for the warmest July highs and 37th of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Mar del Plata is 2.8°C cooler than that mean.
From July to August, average highs rise by 1.7°C to 13.5°C, and monthly rainfall rises from 54 mm to 60 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
Mar del Plata climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.1°C16.7°C | 16.7°C | 77 | 8.3 | 14.514 h |
| February | 24.3°C16.8°C | 16.8°C | 77 | 7.5 | 13.514 h |
| March | 22.5°C15.5°C | 15.5°C | 72 | 8.1 | 12.412 h |
| April | 19.0°C12.5°C | 12.5°C | 77 | 8.6 | 11.111 h |
| May | 15.7°C9.9°C | 9.9°C | 49 | 6.8 | 10.110 h |
| June | 12.9°C7.1°C | 7.1°C | 60 | 6.9 | 9.610 h |
| July, selected | 11.8°C5.8°C | 5.8°C | 54 | 7.0 | 9.810 h |
| August | 13.5°C6.6°C | 6.6°C | 60 | 7.0 | 10.711 h |
| September | 14.7°C7.5°C | 7.5°C | 60 | 7.4 | 11.812 h |
| October | 17.3°C9.8°C | 9.8°C | 80 | 9.0 | 13.013 h |
| November | 20.5°C12.3°C | 12.3°C | 77 | 9.3 | 14.114 h |
| December | 23.7°C14.9°C | 14.9°C | 69 | 8.0 | 14.715 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
- Necochea in JulyArgentina · 120 kmHigh 11.7°C · Low 6.5°C · 52 mm rain
- Tandil in JulyArgentina · 158 kmHigh 11.6°C · Low 3.5°C · 40 mm rain
- Mar del Tuyú in JulyArgentina · 176 kmHigh 11.4°C · Low 7.7°C · 68 mm rain
- Olavarría in JulyArgentina · 273 kmHigh 12.1°C · Low 3.6°C · 38 mm rain
- San Vicente in JulyArgentina · 340 kmHigh 13.8°C · Low 5.7°C · 59 mm rain
- La Plata in JulyArgentina · 344 kmHigh 13.1°C · Low 7.2°C · 64 mm rain
- Berisso in JulyArgentina · 349 kmHigh 13.2°C · Low 7.4°C · 83 mm rain
- Ezeiza in JulyArgentina · 360 kmHigh 13.9°C · Low 6.0°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 Mar del Plata) is explained once on the Mar del Plata year overview and on the Sources, method and limits page.