Climate averages 1991–2020
São Gonçalo weather
in July.
A warm, moderately wet month: the coolest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in São Gonçalo: daytime highs average 24.3°C and nights cool to about 16.4°C. By daytime temperature it is the coolest month of the year.
Expect about 49 mm of rain on roughly 7 days, which makes July a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 52 min on an average July day.
The nearest other city in this atlas is Rio de Janeiro (16 km away). In July its highs average 24.9°C, 0.6°C warmer than São Gonçalo, with 51 mm of rain.
Among the 448 cities listed in Brazil, São Gonçalo ranks joint 239th of 448 for the warmest July highs and joint 269th of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; São Gonçalo is 0.4°C cooler than that mean.
From July to August, average highs rise by 0.9°C to 25.3°C, and monthly rainfall falls from 49 mm to 44 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
São Gonçalo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.1°C23.0°C | 23.0°C | 244 | 20.4 | 13.413 h |
| February | 30.5°C23.1°C | 23.1°C | 183 | 17.0 | 12.913 h |
| March | 29.0°C22.4°C | 22.4°C | 205 | 19.6 | 12.212 h |
| April | 27.3°C20.8°C | 20.8°C | 101 | 13.2 | 11.612 h |
| May | 25.0°C18.3°C | 18.3°C | 75 | 10.5 | 11.011 h |
| June | 24.6°C17.1°C | 17.1°C | 48 | 7.0 | 10.811 h |
| July, selected | 24.3°C16.4°C | 16.4°C | 49 | 7.2 | 10.911 h |
| August | 25.3°C16.8°C | 16.8°C | 44 | 7.3 | 11.311 h |
| September | 26.3°C18.1°C | 18.1°C | 85 | 10.7 | 11.912 h |
| October | 27.4°C19.6°C | 19.6°C | 114 | 13.3 | 12.613 h |
| November | 27.4°C20.5°C | 20.5°C | 204 | 18.0 | 13.213 h |
| December | 29.1°C22.1°C | 22.1°C | 229 | 19.9 | 13.514 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
- Rio de Janeiro in JulyBrazil · 16 kmHigh 24.9°C · Low 17.1°C · 51 mm rain
- Magé in JulyBrazil · 19 kmHigh 24.4°C · Low 15.6°C · 49 mm rain
- Itaboraí in JulyBrazil · 22 kmHigh 24.1°C · Low 15.4°C · 44 mm rain
- Maricá in JulyBrazil · 26 kmHigh 24.4°C · Low 17.9°C · 45 mm rain
- Duque de Caxias in JulyBrazil · 27 kmHigh 25.1°C · Low 16.1°C · 47 mm rain
- Belford Roxo in JulyBrazil · 36 kmHigh 25.3°C · Low 16.3°C · 34 mm rain
- Barra da Tijuca in JulyBrazil · 37 kmHigh 25.5°C · Low 17.0°C · 51 mm rain
- Petrópolis in JulyBrazil · 38 kmHigh 21.4°C · Low 13.0°C · 39 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 São Gonçalo) is explained once on the São Gonçalo year overview and on the Sources, method and limits page.
Magé lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.