Nilópolis Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Nilópolis.
Climate overview of Nilópolis
With consistently stable weather, Nilópolis, Rio de Janeiro State, Brazil, sees little seasonal temperature change. Daytime highs average 29°C (84°F), ranging from 33°C (91°F) in February to 27°C (81°F) in July.
The city receives considerable rainfall, with around 1461 mm (58 in) annually. January is the wettest month. It has a distinct rainy season from November to March. The sunniest month is January, with 7.1 hours of sunshine per day on average.
Nilópolis Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Nilópolis - and find the best time to visit.
Monthly Temperature in Nilópolis
The climate in Nilópolis remains fairly constant, offering comfortable temperatures throughout the year. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in February to a comfortable 27°C (81°F) in the coolest month, July.
Nights vary from 23°C (73°F) in February to around 16°C (61°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Nilópolis
Nilópolis is known for its substantial rainfall, with annual precipitation reaching 1461 mm (58 in). The climate in Nilópolis shows significant variation throughout the year. Expect heavy rainfall in January, the wettest month, with an average of 233 mm (9.2 in) of precipitation over 20 rainy days.
In contrast, the driest month August offers drier and sunnier days, with around 40 mm (1.6 in) of rainfall over 9 rainy days. For more details, please visit our Nilópolis Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Nilópolis
Nilópolis offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between January (7.1 hours daily) and September (4.8 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Nilópolis by Month
The relative humidity is high throughout the year in Nilópolis.
The city experiences its highest humidity in March, reaching 80%. In July, the humidity drops to its lowest level at 77%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Nilópolis
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: January, February and March
- Most sunshine: January, February and March
- Fewest rainy days: June, July and August
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from November to March
Frequently asked questions about the climate in Nilópolis
What is the best time to visit Nilópolis?
May, June, July, August and September typically offer the most optimal weather in Nilópolis. In contrast, January, February, March and December tend to have less optimal conditions. Nilópolis has a distinct rainy season from November to March.
What temperatures can I expect in Nilópolis?
Daytime highs range from 27°C (81°F) in July to 33°C (91°F) in February. Nighttime lows range from 16°C (61°F) to 23°C (73°F). Temperatures stay relatively stable year-round.
How much rain does Nilópolis get?
Annual rainfall is around 1461 mm (58 in). January is the wettest month with 233 mm (9.2 in), while August is the driest with 40 mm (1.6 in).
How sunny is Nilópolis?
Nilópolis receives around 2,183 hours of sunshine per year. January is the sunniest month with 212 hours, while September is the cloudiest with just 144 hours. Overall, Nilópolis enjoys abundant sunshine.
Nilópolis 3-Day Forecast
Nilópolis on the map
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