Climate averages 1991–2020
Itaboraí weather
in April.
A warm, wet month: the joint 5th 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 Itaboraí: daytime highs average 27.0°C and nights cool to about 20.1°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 108 mm of rain on roughly 14 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 Maricá (20 km away). In April its highs average 27.4°C, about as warm as Itaboraí, with 78 mm of rain.
Among the 448 cities listed in Brazil, Itaboraí ranks joint 222nd of 448 for the warmest April highs and joint 301st of 448 for the driest April (rainfall, lowest first). The mean April high of those 448 cities is 27.0°C; Itaboraí is level with that mean.
From April to May, average highs fall by 2.2°C to 24.8°C, and monthly rainfall falls from 108 mm to 77 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
Itaboraí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C22.5°C | 22.5°C | 259 | 21.3 | 13.413 h |
| February | 30.1°C22.5°C | 22.5°C | 203 | 18.2 | 12.913 h |
| March | 28.6°C21.8°C | 21.8°C | 220 | 21.7 | 12.212 h |
| April, selected | 27.0°C20.1°C | 20.1°C | 108 | 14.2 | 11.612 h |
| May | 24.8°C17.5°C | 17.5°C | 77 | 10.9 | 11.011 h |
| June | 24.4°C16.1°C | 16.1°C | 44 | 6.9 | 10.811 h |
| July | 24.1°C15.4°C | 15.4°C | 44 | 7.3 | 10.911 h |
| August | 24.9°C15.8°C | 15.8°C | 43 | 7.4 | 11.311 h |
| September | 25.9°C17.4°C | 17.4°C | 82 | 11.1 | 11.912 h |
| October | 27.0°C19.1°C | 19.1°C | 112 | 13.4 | 12.613 h |
| November | 27.0°C20.1°C | 20.1°C | 210 | 18.7 | 13.213 h |
| December | 28.7°C21.6°C | 21.6°C | 255 | 21.6 | 13.513 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
- Maricá in AprilBrazil · 20 kmHigh 27.4°C · Low 22.0°C · 78 mm rain
- Magé in AprilBrazil · 21 kmHigh 27.4°C · Low 20.4°C · 101 mm rain
- São Gonçalo in AprilBrazil · 22 kmHigh 27.3°C · Low 20.8°C · 101 mm rain
- Rio de Janeiro in AprilBrazil · 38 kmHigh 28.0°C · Low 21.4°C · 88 mm rain
- Teresópolis in AprilBrazil · 38 kmHigh 23.6°C · Low 16.8°C · 119 mm rain
- Petrópolis in AprilBrazil · 42 kmHigh 24.3°C · Low 17.4°C · 105 mm rain
- Saquarema in AprilBrazil · 43 kmHigh 26.4°C · Low 22.0°C · 78 mm rain
- Duque de Caxias in AprilBrazil · 47 kmHigh 28.1°C · Low 21.0°C · 106 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 Itaboraí) is explained once on the Itaboraí year overview and on the Sources, method and limits page.