Climate averages 1991–2020
Nova Iguaçu weather
in October.
A hot, wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Nova Iguaçu: daytime highs average 28.5°C and nights cool to about 19.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 96 mm of rain on roughly 13 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 36 min on an average October day.
The nearest other city in this atlas is Belford Roxo (5 km away). In October its highs average 28.4°C, about as warm as Nova Iguaçu, with 96 mm of rain.
Among the 448 cities listed in Brazil, Nova Iguaçu ranks joint 202nd of 448 for the warmest October highs and joint 168th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Nova Iguaçu is 0.2°C warmer than that mean.
From October to November, average highs fall by 0.1°C to 28.4°C, and monthly rainfall rises from 96 mm to 165 mm.
The annual picture
October 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
Nova Iguaçu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C23.1°C | 23.1°C | 235 | 20.0 | 13.413 h |
| February | 31.4°C23.2°C | 23.2°C | 170 | 16.6 | 12.913 h |
| March | 29.9°C22.5°C | 22.5°C | 171 | 19.4 | 12.212 h |
| April | 28.2°C20.8°C | 20.8°C | 85 | 12.0 | 11.612 h |
| May | 25.9°C18.1°C | 18.1°C | 58 | 9.6 | 11.011 h |
| June | 25.6°C16.6°C | 16.6°C | 34 | 5.6 | 10.811 h |
| July | 25.3°C15.9°C | 15.9°C | 34 | 6.1 | 10.911 h |
| August | 26.4°C16.4°C | 16.4°C | 32 | 6.4 | 11.311 h |
| September | 27.4°C18.1°C | 18.1°C | 66 | 9.7 | 11.912 h |
| October, selected | 28.5°C19.8°C | 19.8°C | 96 | 12.9 | 12.613 h |
| November | 28.4°C20.8°C | 20.8°C | 165 | 17.6 | 13.213 h |
| December | 30.0°C22.3°C | 22.3°C | 192 | 19.2 | 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
October in nearby cities
- Belford Roxo in OctoberBrazil · 5 kmHigh 28.4°C · Low 20.0°C · 96 mm rain
- Queimados in OctoberBrazil · 12 kmHigh 28.3°C · Low 19.5°C · 96 mm rain
- Duque de Caxias in OctoberBrazil · 15 kmHigh 28.2°C · Low 19.8°C · 121 mm rain
- Japeri in OctoberBrazil · 24 kmHigh 29.0°C · Low 20.1°C · 114 mm rain
- Seropédica in OctoberBrazil · 26 kmHigh 28.2°C · Low 19.4°C · 114 mm rain
- Barra da Tijuca in OctoberBrazil · 28 kmHigh 28.5°C · Low 20.5°C · 92 mm rain
- Rio de Janeiro in OctoberBrazil · 32 kmHigh 28.0°C · Low 20.0°C · 92 mm rain
- Itaguaí in OctoberBrazil · 35 kmHigh 27.5°C · Low 20.1°C · 114 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 Nova Iguaçu) is explained once on the Nova Iguaçu year overview and on the Sources, method and limits page.
Belford Roxo and Queimados lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.