São João da Barra

São João da Barra, Rio de Janeiro, Brazil

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

20°

Overcast

Feels Like: 18°

Min: 18°

Max: 21°

The next few hours will be overcast, with today reaching 21°C and dropping to 19°C. The coming days will be drizzle

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

20° 21° 20° 20° 20° 20° 20° 21° 21° 20° 20° 20° 20° 20° 20° 19° 19° 20° 20° 20° 20° 21° 21° 21°
46%
46%
30%
30%
30%
48%
48%
42%
42%
42%
70%
70%
70%
90%
90%
90%
90%
90%
90%
88%
88%
88%
82%
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
Today
Tomorrow

Daylight Hours

05:50

Sunrise

17:33

Sunset

11 hours 42 minutes of sunlight today

Moon

Waning Crescent

03:05

Moonrise

14:10

Moonset

Daily Forecast

Today

18°
21°

Tuesday

19°
22°

Wednesday

22°
24°

Thursday

23°
24°

Friday

24°
25°

Saturday

23°
26°

Sunday

22°
24°

Monday

22°
23°

Tuesday

21°
23°

Wednesday

21°
23°

Air Quality Data Available

Upgrade to access real-time air quality data for São João da Barra.

UV Index

No protection needed
1 Low
Low Extreme

Humidity

72% Humid
Low High

Weather in São João da Barra today, September 07, 2026

São João da Barra looks damp on September 07, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.

Temperatures climb from an overnight low near 18°C toward a daytime high of about 21°C. The air stays humid, with relative humidity between 69% and 77% and the peak around 18:00. Winds stay light, near 5.0 km/h by 14:00, so the day feels still more than breezy.

Expect the wet theme to continue later, as rain odds reach 48% near 19:00. Cloud amounts hold near 100% around 14:00. Horizontal visibility sits around 11.8 km, briefly nearer 6.5 km. Daylight runs from 05:50 to 17:33, lasting 11 hours 42 minutes of sunlight today.

Taken together, São João da Barra looks wet enough on September 07, 2026 that flexible outdoor plans work best, with temperatures peaking near 21°C.

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)