Climate averages 1991–2020
Itaguaí weather
in October.
A warm, wet month: the joint 6th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in Itaguaí: daytime highs average 27.5°C and nights cool to about 20.1°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 114 mm of rain on roughly 14 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 Seropédica (14 km away). In October its highs average 28.2°C, 0.7°C warmer than Itaguaí, with 114 mm of rain.
Among the 448 cities listed in Brazil, Itaguaí ranks joint 263rd of 448 for the warmest October highs and joint 237th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Itaguaí is 0.8°C cooler than that mean.
From October to November, average highs stay level at 27.5°C, and monthly rainfall rises from 114 mm to 190 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
Itaguaí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.2°C23.6°C | 23.6°C | 273 | 20.9 | 13.413 h |
| February | 30.7°C23.8°C | 23.8°C | 199 | 17.7 | 12.913 h |
| March | 29.2°C23.0°C | 23.0°C | 200 | 20.2 | 12.212 h |
| April | 27.6°C21.3°C | 21.3°C | 106 | 13.0 | 11.612 h |
| May | 25.4°C18.8°C | 18.8°C | 67 | 10.2 | 11.011 h |
| June | 25.0°C17.4°C | 17.4°C | 40 | 6.7 | 10.811 h |
| July | 24.7°C16.7°C | 16.7°C | 40 | 6.3 | 10.911 h |
| August | 25.6°C17.1°C | 17.1°C | 35 | 6.7 | 11.311 h |
| September | 26.4°C18.6°C | 18.6°C | 79 | 11.0 | 11.912 h |
| October, selected | 27.5°C20.1°C | 20.1°C | 114 | 13.9 | 12.613 h |
| November | 27.5°C21.1°C | 21.1°C | 190 | 18.6 | 13.213 h |
| December | 29.2°C22.6°C | 22.6°C | 226 | 20.7 | 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
October in nearby cities
- Seropédica in OctoberBrazil · 14 kmHigh 28.2°C · Low 19.4°C · 114 mm rain
- Japeri in OctoberBrazil · 26 kmHigh 29.0°C · Low 20.1°C · 114 mm rain
- Queimados in OctoberBrazil · 27 kmHigh 28.3°C · Low 19.5°C · 96 mm rain
- Nova Iguaçu in OctoberBrazil · 35 kmHigh 28.5°C · Low 19.8°C · 96 mm rain
- Belford Roxo in OctoberBrazil · 40 kmHigh 28.4°C · Low 20.0°C · 96 mm rain
- Barra do Piraí in OctoberBrazil · 43 kmHigh 27.3°C · Low 18.4°C · 112 mm rain
- Barra da Tijuca in OctoberBrazil · 45 kmHigh 28.5°C · Low 20.5°C · 92 mm rain
- Duque de Caxias in OctoberBrazil · 48 kmHigh 28.2°C · Low 19.8°C · 121 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 Itaguaí) is explained once on the Itaguaí year overview and on the Sources, method and limits page.
Japeri and Seropédica lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.