Nova Iguaçu Temperature by Month
Nova Iguaçu, Rio de Janeiro State, Brazil has a consistently comfortable climate year-round, with daytime highs averaging 30°C (86°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Nova Iguaçu Monthly Temperatures
With little seasonal fluctuation, Nova Iguaçu offers a predictable and steady climate. Maximum daytime temperatures reach a very warm 33°C (91°F) in February and a comfortable 27°C (81°F) in July. At night, lows range from 23°C (73°F) to 16°C (61°F) throughout the year.
The chart below illustrates the average maximum day and minimum night temperatures in Nova Iguaçu by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. February, the warmest month, averages 202 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Nova Iguaçu vs Brazil
The map below shows the annual temperature across Brazil. You can also select individual months if you want to compare a specific time of year.
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Nova Iguaçu vs World: Temperature Compared
Nova Iguaçu's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Nova Iguaçu?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Nova Iguaçu, July is the coolest month, with average highs of 27°C (81°F) and humidity around 77% — considered high. In February, the warmest month, temperatures average 33°C (91°F) with 79% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Nova Iguaçu's weather — including monthly rainfall, sunshine hours, and humidity — visit our Nova Iguaçu climate page.
