Big Rivermouth (Mendocino) Surf Report

Current surf conditions for Big Rivermouth (2025-12-18)
Wave height * 5.5ft / 1.6m
Swell period 11s
Swell direction °
Wind ° 12mph / 19km/h
Weather Light rain 13°C / 55°F
Sea temp 13°C / 55°F
* Wave size is face height of set waves.
Big Rivermouth surf map

10 day Big Rivermouth surf forecast

Thu

18/Dec
5ft

5

7

7
  • Low 3:40am
  • High 9:42am
  • Low 5:08pm

Fri

19/Dec
7.5ft

18

10

4
  • High 12:16am
  • Low 4:17am
  • High 10:16am
  • Low 5:43pm

Sat

20/Dec
4.5ft

4

4

5
  • High 12:52am
  • Low 4:55am
  • High 10:52am
  • Low 6:19pm

Sun

21/Dec
5ft

11

9

1
  • High 1:29am
  • Low 5:35am
  • High 11:28am
  • Low 6:54pm

Mon

22/Dec
4.5ft

3

5

6
  • High 2:06am
  • Low 6:20am
  • High 12:08pm
  • Low 7:30pm

Tue

23/Dec
5ft

7

6

22
  • High 2:42am
  • Low 7:14am
  • High 12:52pm
  • Low 8:06pm

Wed

24/Dec
5ft

8

13

17
  • High 3:17am
  • Low 8:18am
  • High 1:44pm
  • Low 8:43pm

Thu

25/Dec
17ft

12

20

22
  • High 3:52am
  • Low 9:33am
  • High 2:51pm
  • Low 9:23pm

Fri

26/Dec
11.5ft

10

8

7
  • High 4:29am
  • Low 10:51am
  • High 4:15pm
  • Low 10:06pm

Thu 18th Dec

Surf report for Thu 18/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 6ft 8.7ft 11s 6mph (6mph) weather symbol 9°C/49°F
7:00 5.5ft 8.1ft 11s 5mph (6mph) weather symbol 11°C/52°F
10:00 5.5ft 7.4ft 11s 5mph (7mph) weather symbol 13°C/55°F
13:00 5ft 6.8ft 11s 7mph (9mph) weather symbol 14°C/56°F
16:00 5ft 6.6ft 10s 7mph (11mph) weather symbol 14°C/57°F
19:00 5ft 6.7ft 10s 7mph (9mph) weather symbol 13°C/56°F
Tide times
Low 3:40am (3.38m)
High 9:42am (6.32m)
Low 5:08pm (-0.44m)
Daylight
First light06:59
Sunrise07:29
Sunset16:54
Dark17:24

Fri 19th Dec

Surf report for Fri 19/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 6ft 8.4ft 11s 12mph (25mph) weather symbol 13°C/56°F
7:00 7ft 9.6ft 11s 18mph (30mph) weather symbol 13°C/56°F
10:00 7.5ft 10.4ft 11s 14mph (26mph) weather symbol 13°C/56°F
13:00 7.5ft 10.3ft 11s 10mph (18mph) weather symbol 13°C/56°F
16:00 7ft 9.8ft 11s 5mph (11mph) weather symbol 13°C/55°F
19:00 6.5ft 9.2ft 11s 4mph (6mph) weather symbol 12°C/54°F
Tide times
High 12:16am (4.46m)
Low 4:17am (3.37m)
High 10:16am (6.28m)
Low 5:43pm (-0.56m)
Daylight
First light07:00
Sunrise07:30
Sunset16:54
Dark17:24

Sat 20th Dec

Surf report for Sat 20/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 5ft 8ft 12s 4mph (4mph) weather symbol 10°C/51°F
7:00 5ft 7.7ft 12s 4mph (4mph) weather symbol 10°C/50°F
10:00 4.5ft 7.6ft 12s 4mph (5mph) weather symbol 12°C/54°F
13:00 4.5ft 7.4ft 12s 4mph (7mph) weather symbol 14°C/57°F
16:00 4.5ft 7.2ft 12s 1mph (2mph) weather symbol 12°C/54°F
19:00 4.5ft 6.9ft 11s 5mph (8mph) weather symbol 12°C/54°F
Tide times
High 12:52am (4.45m)
Low 4:55am (3.33m)
High 10:52am (6.19m)
Low 6:19pm (-0.62m)
Daylight
First light07:00
Sunrise07:31
Sunset16:55
Dark17:25

Sun 21st Dec

Surf report for Sun 21/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 4.5ft 6.6ft 11s 14mph (22mph) weather symbol 14°C/56°F
7:00 5ft 7.2ft 11s 11mph (19mph) weather symbol 14°C/56°F
10:00 5ft 7.7ft 11s 14mph (26mph) weather symbol 14°C/56°F
13:00 5ft 7.7ft 11s 9mph (13mph) weather symbol 13°C/56°F
16:00 5ft 7.4ft 11s 2mph (2mph) weather symbol 13°C/55°F
19:00 5ft 7.1ft 10s 1mph (2mph) weather symbol 12°C/54°F
Tide times
High 1:29am (4.44m)
Low 5:35am (3.28m)
High 11:28am (6.01m)
Low 6:54pm (-0.60m)
Daylight
First light07:01
Sunrise07:31
Sunset16:55
Dark17:25

Mon 22nd Dec

Surf report for Mon 22/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 4ft 6.2ft 10s 3mph (5mph) weather symbol 11°C/53°F
7:00 4.5ft 6.2ft 10s 3mph (4mph) weather symbol 11°C/52°F
10:00 4ft 6.3ft 10s 1mph (2mph) weather symbol 11°C/52°F
13:00 4.5ft 6.6ft 13s 5mph (6mph) weather symbol 11°C/52°F
16:00 4.5ft 6.9ft 13s 5mph (8mph) weather symbol 11°C/52°F
19:00 4.5ft 7.1ft 13s 6mph (10mph) weather symbol 11°C/51°F
Tide times
High 2:06am (4.47m)
Low 6:20am (3.23m)
High 12:08pm (5.75m)
Low 7:30pm (-0.45m)
Daylight
First light07:01
Sunrise07:32
Sunset16:56
Dark17:26

Tue 23rd Dec

Surf report for Tue 23/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 4.5ft 7.4ft 12s 6mph (8mph) weather symbol 10°C/50°F
7:00 5ft 7.5ft 12s 7mph (11mph) weather symbol 10°C/50°F
10:00 5ft 7.6ft 12s 13mph (19mph) weather symbol 10°C/49°F
13:00 5ft 7.6ft 12s 6mph (4mph) weather symbol 10°C/50°F
16:00 5ft 7.6ft 12s 15mph (32mph) weather symbol 12°C/54°F
19:00 5ft 7.8ft 12s 22mph (40mph) weather symbol 14°C/56°F
Tide times
High 2:42am (4.58m)
Low 7:14am (3.14m)
High 12:52pm (5.38m)
Low 8:06pm (-0.16m)
Daylight
First light07:02
Sunrise07:32
Sunset16:56
Dark17:26

Wed 24th Dec

Surf report for Wed 24/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 4.5ft 7.6ft 12s 4mph (7mph) weather symbol 9°C/48°F
7:00 4.5ft 7.3ft 12s 8mph (11mph) weather symbol 9°C/48°F
10:00 4.5ft 7.3ft 11s 12mph (19mph) weather symbol 11°C/51°F
13:00 5ft 7.7ft 11s 13mph (23mph) weather symbol 12°C/54°F
16:00 5ft 8.5ft 8s 13mph (26mph) weather symbol 12°C/54°F
19:00 6.5ft 9.8ft 8s 17mph (35mph) weather symbol 12°C/53°F
Tide times
High 3:17am (4.77m)
Low 8:18am (2.97m)
High 1:44pm (4.91m)
Low 8:43pm (0.27m)
Daylight
First light07:02
Sunrise07:32
Sunset16:57
Dark17:27

Thu 25th Dec

Surf report for Thu 25/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 11ft 13.8ft 10s 26mph (56mph) weather symbol 12°C/53°F
7:00 11ft 14ft 10s 12mph (24mph) weather symbol 10°C/50°F
10:00 15ft 18.1ft 15s 21mph (36mph) weather symbol 11°C/52°F
13:00 17ft 20.4ft 14s 20mph (35mph) weather symbol 13°C/55°F
16:00 15ft 19.3ft 14s 20mph (34mph) weather symbol 12°C/53°F
19:00 14ft 19.5ft 15s 22mph (37mph) weather symbol 11°C/52°F
Tide times
High 3:52am (5.07m)
Low 9:33am (2.65m)
High 2:51pm (4.40m)
Low 9:23pm (0.82m)
Daylight
First light07:03
Sunrise07:33
Sunset16:57
Dark17:27

Fri 26th Dec

Surf report for Fri 26/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 10.5ft 15.5ft 13s 16mph (26mph) weather symbol 11°C/51°F
7:00 9.5ft 14.4ft 13s 10mph (18mph) weather symbol 9°C/48°F
10:00 10ft 14.8ft 13s 6mph (11mph) weather symbol 11°C/51°F
13:00 11.5ft 16ft 15s 8mph (10mph) weather symbol 9°C/49°F
16:00 10.5ft 15.7ft 14s 7mph (10mph) weather symbol 9°C/48°F
19:00 9.5ft 14.1ft 13s 7mph (11mph) weather symbol 8°C/46°F
Tide times
High 4:29am (5.45m)
Low 10:51am (2.12m)
High 4:15pm (3.96m)
Low 10:06pm (1.43m)
Daylight
First light07:03
Sunrise07:33
Sunset16:58
Dark17:28

Sat 27th Dec

Surf report for Sat 27/12
  Wave size Primary swell Direction Period Wind direction Wind speed Weather
4:00 7ft 10.3ft 12s 10mph (19mph) weather symbol 7°C/44°F
7:00 6ft 9.2ft 11s 10mph (21mph) weather symbol 7°C/44°F
10:00 5.5ft 8.4ft 11s 10mph (20mph) weather symbol 10°C/50°F
13:00 5.5ft 8.1ft 10s 10mph (17mph) weather symbol 12°C/54°F
16:00 5.5ft 7.8ft 10s 6mph (13mph) weather symbol 12°C/53°F
Tide times
High 5:07am (5.88m)
Low 12:03pm (1.43m)
Daylight
First light07:03
Sunrise07:33
Sunset16:59
Dark17:29

Nearest buoys

Surf spots nearby

Not Magic Seaweed (MSW)

Although we look a bit like Magic Seaweed we are not MagicSeaweed as they no longer exist...