Climate averages 1991–2020
Bahía Blanca weather
in July.
A cool, fairly dry 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 Bahía Blanca: daytime highs average 12.7°C and nights cool to about 5.0°C. By daytime temperature it is the coolest month of the year.
Expect about 34 mm of rain on roughly 5 days, which makes July a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 44 min on an average July day.
The nearest other city in this atlas is Olavarría (265 km away). In July its highs average 12.1°C, 0.7°C cooler than Bahía Blanca, with 38 mm of rain.
Among the 67 cities listed in Argentina, Bahía Blanca ranks 54th of 67 for the warmest July highs and 24th of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Bahía Blanca is 1.9°C cooler than that mean.
From July to August, average highs rise by 2.4°C to 15.1°C, and monthly rainfall rises from 34 mm to 35 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
Bahía Blanca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C18.7°C | 18.7°C | 54 | 7.1 | 14.515 h |
| February | 28.0°C17.7°C | 17.7°C | 65 | 6.7 | 13.614 h |
| March | 25.3°C16.0°C | 16.0°C | 67 | 6.7 | 12.412 h |
| April | 20.7°C12.2°C | 12.2°C | 55 | 6.0 | 11.111 h |
| May | 16.7°C9.2°C | 9.2°C | 38 | 5.4 | 10.110 h |
| June | 13.4°C6.2°C | 6.2°C | 28 | 4.4 | 9.510 h |
| July, selected | 12.7°C5.0°C | 5.0°C | 34 | 5.0 | 9.710 h |
| August | 15.1°C6.4°C | 6.4°C | 35 | 4.7 | 10.611 h |
| September | 17.6°C8.0°C | 8.0°C | 45 | 6.2 | 11.812 h |
| October | 20.6°C10.9°C | 10.9°C | 64 | 7.7 | 13.113 h |
| November | 24.5°C14.0°C | 14.0°C | 63 | 7.0 | 14.214 h |
| December | 28.0°C16.9°C | 16.9°C | 57 | 6.2 | 14.815 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
- Olavarría in JulyArgentina · 265 kmHigh 12.1°C · Low 3.6°C · 38 mm rain
- Santa Rosa, Argentina in JulyArgentina · 294 kmHigh 13.3°C · Low 4.1°C · 19 mm rain
- Necochea in JulyArgentina · 307 kmHigh 11.7°C · Low 6.5°C · 52 mm rain
- Tandil in JulyArgentina · 315 kmHigh 11.6°C · Low 3.5°C · 40 mm rain
- Mar del Plata in JulyArgentina · 418 kmHigh 11.8°C · Low 5.8°C · 54 mm rain
- General Roca in JulyArgentina · 462 kmHigh 12.3°C · Low 3.1°C · 18 mm rain
- Junín in JulyArgentina · 473 kmHigh 14.3°C · Low 5.6°C · 32 mm rain
- Cipolletti in JulyArgentina · 496 kmHigh 12.2°C · Low 2.6°C · 18 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 Bahía Blanca) is explained once on the Bahía Blanca year overview and on the Sources, method and limits page.