See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Mostly Clear
Feels Like: 21°
Min: 15°
Max: 24°
The next few hours will be overcast, with tomorrow reaching 24°C and dropping to 17°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:11
Sunrise
18:10
Sunset
Moon
Waxing Gibbous
12:41
Moonrise
02:12
Moonset
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View stargazing scoreWeather in Rio Negrinho tomorrow, September 21, 2026
Rio Negrinho looks damp on September 21, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 78% near 10:00. Skies look heaviest around 11:00, with cover close to 90%.
Expect highs of 24°C and cooler readings close to 17°C. Expect humidity between 64% and 99%, most humid near 09:00. Expect gentle winds, highest near 15:00 at 6.9 km/h.
Expect the wet theme to continue later, as rain odds reach 78% near 12:00. Cloud amounts hold near 95% around 17:00. Horizontal visibility holds close to 16.1 km. The sun rises at 06:09 and sets at 18:10, for a total of 12 hours 0 minutes of sunlight today.
In short, treat September 21, 2026 in Rio Negrinho as a damp day: pack covers, watch the wetter hours, and expect a high near 24°C.
Frequently asked questions about weather in Rio Negrinho
How warm does it get in Rio Negrinho?
The warmest month in Rio Negrinho is February, with average high temperatures of 26°C. The average temperature during this period is around 21°C.
How cold does it get in Rio Negrinho?
The coldest month in Rio Negrinho is July, with average low temperatures of 9°C. The average temperature during this period is around 13°C.
What is the wettest time of year in Rio Negrinho?
The wettest month in Rio Negrinho is January, with an average of 206mm of precipitation.
What is the driest time of year in Rio Negrinho?
The driest month in Rio Negrinho is July, with an average of 59mm of precipitation.
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