Climate averages 1991–2020
São Gonçalo weather
in April.
A warm, wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in São Gonçalo: daytime highs average 27.3°C and nights cool to about 20.8°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 101 mm of rain on roughly 13 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average April day.
The nearest other city in this atlas is Rio de Janeiro (16 km away). In April its highs average 28.0°C, 0.6°C warmer than São Gonçalo, with 88 mm of rain.
Among the 448 cities listed in Brazil, São Gonçalo ranks joint 211th of 448 for the warmest April highs and joint 277th of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; São Gonçalo is 0.4°C warmer than that mean.
From April to May, average highs fall by 2.3°C to 25.0°C, and monthly rainfall falls from 101 mm to 75 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Rio de Janeiro in AprilBrazil · 16 kmHigh 28.0°C · Low 21.4°C · 88 mm rain
- Magé in AprilBrazil · 19 kmHigh 27.4°C · Low 20.4°C · 101 mm rain
- Itaboraí in AprilBrazil · 22 kmHigh 27.0°C · Low 20.1°C · 108 mm rain
- Maricá in AprilBrazil · 26 kmHigh 27.4°C · Low 22.0°C · 78 mm rain
- Duque de Caxias in AprilBrazil · 27 kmHigh 28.1°C · Low 21.0°C · 106 mm rain
- Belford Roxo in AprilBrazil · 36 kmHigh 28.3°C · Low 21.1°C · 85 mm rain
- Barra da Tijuca in AprilBrazil · 37 kmHigh 28.5°C · Low 21.7°C · 88 mm rain
- Petrópolis in AprilBrazil · 38 kmHigh 24.3°C · Low 17.4°C · 105 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.