See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:12
Sunrise
17:53
Sunset
Moon
Waning Crescent
03:32
Moonrise
14:28
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Rio Grande da Serra.
UV Index
Humidity
Weather in Rio Grande da Serra today, September 07, 2026
Rain features in Rio Grande da Serra on September 07, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The morning carries the wetter risk, with rain chances near 94% and the highest odds around 10:00. Cloud is also thick early on, peaking near 100% around 09:00.
The temperature range runs from about 10°C up to 12°C. Relative humidity sits between 87% and 100%, reaching its peak around 21:00. Airflow remains manageable, reaching about 3.7 km/h around 09:00.
Through the afternoon wet weather remains a factor, with rain chances near 98% around 13:00. Cloud also stays substantial, close to 100% near 12:00. Expect visibility near 2.3 km, with poorer spells close to 0.1 km. Sunrise is at 06:12 and sunset at 17:53, giving 11 hours 40 minutes of sunlight today.
In short, treat September 07, 2026 in Rio Grande da Serra as a damp day: pack covers, watch the wetter hours, and expect a high near 12°C.
Frequently asked questions about weather in Rio Grande da Serra
How warm does it get in Rio Grande da Serra?
The warmest month in Rio Grande da Serra is June, with average high temperatures of -10°C. The average temperature during this period is around -11°C.
How cold does it get in Rio Grande da Serra?
The coldest month in Rio Grande da Serra is September, with average low temperatures of -18°C. The average temperature during this period is around -17°C.
What is the wettest time of year in Rio Grande da Serra?
The wettest month in Rio Grande da Serra is August, with an average of 17mm of precipitation.
What is the driest time of year in Rio Grande da Serra?
The driest month in Rio Grande da Serra is February, with an average of 0mm of precipitation.
Explore more weather forecasts
- Ribeirão Pires, São Paulo
- São Paulo, São Paulo
- Mauá, São Paulo
- Rio de Janeiro, Rio de Janeiro
- Santo André, São Paulo
- Belo Horizonte, Minas Gerais
- Cubatão, São Paulo
- Salvador, Bahia
- São Bernardo do Campo, São Paulo
- Fortaleza, Ceará
- São Caetano do Sul, São Paulo
- Manaus, Amazonas
- Ferraz de Vasconcelos, São Paulo
- Brasília, Federal District
- Diadema, São Paulo
- Curitiba, Paraná