Climate averages 1991–2020
Rio Grande weather
in July.
A mild, wet month: the coolest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Rio Grande: daytime highs average 15.0°C and nights cool to about 11.7°C. By daytime temperature it is the coolest month of the year.
Expect about 112 mm of rain on roughly 10 days, which makes July a wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 16 min on an average July day.
The nearest other city in this atlas is Pelotas (37 km away). In July its highs average 16.2°C, 1.2°C warmer than Rio Grande, with 117 mm of rain.
Among the 448 cities listed in Brazil, Rio Grande ranks 448th of 448 for the warmest July highs and joint 391st of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; Rio Grande is 9.7°C cooler than that mean.
From July to August, average highs rise by 0.8°C to 15.8°C, and monthly rainfall falls from 112 mm to 108 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
Rio Grande climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.6°C21.9°C | 21.9°C | 87 | 8.6 | 14.014 h |
| February | 24.9°C22.3°C | 22.3°C | 85 | 9.8 | 13.213 h |
| March | 24.0°C21.4°C | 21.4°C | 92 | 9.9 | 12.312 h |
| April | 21.7°C18.8°C | 18.8°C | 112 | 10.1 | 11.311 h |
| May | 18.6°C15.8°C | 15.8°C | 104 | 9.8 | 10.511 h |
| June | 16.1°C13.0°C | 13.0°C | 110 | 9.7 | 10.110 h |
| July, selected | 15.0°C11.7°C | 11.7°C | 112 | 10.1 | 10.310 h |
| August | 15.8°C12.5°C | 12.5°C | 108 | 9.6 | 11.011 h |
| September | 16.7°C13.7°C | 13.7°C | 125 | 10.2 | 11.912 h |
| October | 18.9°C16.1°C | 16.1°C | 129 | 10.1 | 12.913 h |
| November | 21.0°C18.0°C | 18.0°C | 87 | 7.7 | 13.714 h |
| December | 23.2°C20.2°C | 20.2°C | 86 | 8.0 | 14.214 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
- Pelotas in JulyBrazil · 37 kmHigh 16.2°C · Low 10.1°C · 117 mm rain
- Bagé in JulyBrazil · 206 kmHigh 16.3°C · Low 8.1°C · 117 mm rain
- Guaíba in JulyBrazil · 226 kmHigh 18.3°C · Low 9.9°C · 140 mm rain
- Cachoeira do Sul in JulyBrazil · 235 kmHigh 17.9°C · Low 9.0°C · 146 mm rain
- Porto Alegre in JulyBrazil · 238 kmHigh 18.4°C · Low 9.8°C · 140 mm rain
- Viamão in JulyBrazil · 240 kmHigh 17.9°C · Low 10.1°C · 136 mm rain
- Alvorada in JulyBrazil · 246 kmHigh 18.4°C · Low 10.0°C · 136 mm rain
- Canoas in JulyBrazil · 251 kmHigh 18.5°C · Low 9.8°C · 140 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 Rio Grande) is explained once on the Rio Grande year overview and on the Sources, method and limits page.