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BrazilRio de Janeiro23.05°S · 43.53°W

Grumari

Updated 14:00 · Masterforecast by Windmaster

Surf

Forecast now

1026

kts

Kite now

Today

Now → 23:00

Now

10

26

·

1.6 m · 11s

15:00

11

23

·

1.6 m · 11s

16:00

12

24

·

1.7 m · 10s

17:00

13

28

·

1.8 m · 9s

18:00

12

26

·

1.9 m · 9s

19:00

10

22

·

1.9 m · 9s

20:00

10

19

·

1.9 m · 9s

21:00

9

19

·

1.9 m · 9s

22:00

8

17

·

1.9 m · 9s

23:00

7

14

·

1.9 m · 9s

Wave

1.6m

11s · SSE

Air

22°

feels 23°

Water

23°

boardshorts

Sunset

17:22

in 3h 22m

Live wind

Live

Model agreement

Forecast now, 4 models

High

Masterforecast

10–26 kt

ECMWF

10–26 kt

GFS

10–12 kt

ECMWF 25km

8–19 kt

Models agree within ±1 kts. Confidence in forecast is high.

Live wind

Live

Get a 7 am heads-up when Grumari turns on. Wind alerts and saved spots are free in beta.

3 days forecast

Masterforecast by Windmaster · Updated 14:00

TodayTue, Jul 7

WedJul 8

ThuJul 9

Hour

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

22

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

22

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

22

Sky

Temp°C

18°

18°

20°

22°

24°

25°

26°

24°

22°

22°

21°

20°

20°

20°

20°

20°

19°

18°

18°

19°

19°

20°

20°

21°

21°

20°

20°

20°

20°

18°

18°

18°

18°

19°

16°

16°

18°

20°

21°

22°

22°

21°

21°

21°

20°

19°

19°

18°

18°

17°

17°

Windkts

6

7

9

9

9

9

7

11

10

11

12

13

12

10

10

9

8

8

8

8

7

7

6

6

6

6

5

4

4

3

2

2

3

3

5

4

4

3

2

1

6

8

7

8

8

8

7

6

5

4

4

Gustkts

12

13

17

20

20

20

20

22

26

23

24

28

26

22

19

19

17

17

15

15

16

16

16

14

15

15

14

12

10

9

6

5

6

6

10

9

7

8

9

8

14

18

18

19

19

18

14

13

11

9

7

Dir

Kite

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

Wavem · s

1.7

12s

1.7

12s

1.7

12s

1.7

12s

1.7

12s

1.6

12s

1.6

12s

1.6

12s

1.6

11s

1.6

11s

1.7

10s

1.8

9s

1.9

9s

1.9

9s

1.9

9s

1.9

9s

1.9

9s

2.1

9s

2.0

9s

2.0

9s

2.0

9s

2.0

9s

2.0

9s

1.9

9s

1.9

9s

1.9

9s

1.8

9s

1.8

9s

1.8

9s

1.8

9s

1.7

9s

1.7

9s

1.7

9s

1.7

9s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.5

10s

1.5

10s

1.5

10s

1.5

10s

1.5

10s

1.4

10s

1.4

10s

1.4

10s

16-day outlook

GFS · 13 km · NOAA GFS · Updated 14:00

TodayTue, Jul 7

WedJul 8

ThuJul 9

FriJul 10

SatJul 11

SunJul 12

MonJul 13

TueJul 14

WedJul 15

ThuJul 16

FriJul 17

SatJul 18

SunJul 19

MonJul 20

TueJul 21

WedJul 22

Hour

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

06

08

10

12

14

16

18

20

22

Sky

Temp°C

17°

19°

24°

26°

23°

21°

20°

19°

19°

18°

18°

20°

21°

21°

19°

19°

19°

19°

16°

18°

21°

22°

22°

20°

17°

17°

16°

16°

18°

23°

26°

28°

23°

18°

18°

18°

17°

19°

23°

26°

25°

22°

18°

19°

19°

18°

21°

24°

25°

24°

22°

20°

20°

19°

20°

20°

21°

23°

24°

23°

21°

20°

20°

20°

20°

19°

19°

19°

19°

19°

19°

19°

19°

19°

22°

24°

23°

21°

20°

20°

20°

20°

22°

24°

25°

24°

22°

21°

20°

20°

19°

22°

25°

27°

25°

22°

21°

21°

21°

20°

21°

23°

24°

23°

22°

20°

19°

19°

19°

22°

25°

27°

27°

25°

22°

21°

21°

19°

22°

25°

27°

26°

24°

22°

21°

21°

19°

21°

24°

26°

25°

23°

21°

20°

20°

18°

21°

24°

26°

25°

23°

21°

20°

20°

Windkts

4

3

3

7

10

10

9

5

5

4

3

2

4

4

3

3

2

1

3

2

2

5

4

5

4

4

3

4

3

3

2

3

5

1

2

2

2

3

3

2

6

4

4

4

3

2

2

4

6

3

1

1

2

3

4

4

4

3

4

5

4

4

4

4

5

5

4

3

3

4

4

4

3

3

3

4

5

6

6

6

5

2

2

2

5

7

7

7

5

4

3

3

1

3

4

4

3

1

2

2

2

2

5

6

6

4

1

2

3

3

3

5

7

7

6

5

4

3

3

2

3

6

8

7

5

4

3

2

2

4

7

8

7

5

4

4

3

2

4

6

7

7

5

3

Gustkts

5

5

8

9

12

14

16

10

9

6

5

4

3

2

4

5

2

1

3

3

2

3

3

6

7

5

4

5

5

6

6

5

7

2

1

2

3

3

2

3

3

5

6

5

3

4

4

5

7

4

2

1

3

5

6

7

7

5

6

7

7

7

7

5

7

8

6

5

5

5

6

5

4

4

4

3

5

7

10

9

8

2

2

3

4

6

9

10

8

5

5

5

6

6

8

6

4

3

2

2

3

4

5

7

7

5

3

2

4

4

4

5

7

8

8

6

4

4

5

5

5

6

8

9

6

5

4

4

4

5

6

8

11

8

5

5

5

5

4

6

9

10

6

4

Dir

Kite

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

·

Wavem · s

1.7

12s

1.7

12s

1.7

12s

1.6

12s

1.6

11s

1.7

10s

1.9

9s

1.9

9s

1.9

9s

2.1

9s

2.0

9s

2.0

9s

1.9

9s

1.9

9s

1.8

9s

1.8

9s

1.7

9s

1.7

9s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.6

10s

1.5

10s

1.5

10s

1.4

10s

1.4

10s

1.2

10s

1.2

10s

1.2

10s

1.2

10s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.2

11s

1.1

11s

1.1

11s

1.1

11s

1.1

11s

1.1

11s

1.1

10s

1.1

11s

1.1

11s

1.2

10s

1.7

8s

1.9

7s

2.0

8s

2.0

8s

2.0

9s

2.4

10s

2.4

10s

2.4

10s

2.3

10s

2.3

10s

2.3

11s

2.2

11s

2.2

11s

2.2

11s

2.1

10s

2.0

10s

2.0

10s

2.0

10s

1.9

10s

1.9

10s

1.8

10s

1.8

10s

1.7

10s

1.5

10s

1.5

10s

1.4

10s

1.4

10s

1.3

10s

1.3

10s

1.2

9s

1.2

9s

1.1

9s

1.0

9s

1.0

9s

1.0

9s

0.9

9s

1.0

8s

1.0

8s

1.0

8s

0.9

9s

0.0

9s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

0.0

0s

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