Surf Forecasts:
How big are the waves at Mera today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 11ft (3.5m), 12s period with SE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 10ft (3.0m), 11s period with SE swell.
- Evening surf: Evening surf (20 Sep, local time) - 11ft (3.5m), 12s period with SE swell.
The current surf forecast for Mera at 8AM is: 3.5m 12s primary swell from a Southeast direction (forecast issued at 02:00am September 20). An open ocean swell of 0.2m 6s is not directed at the surf break, a second open ocean swell of 1.4m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 11ft (3.5m) | 12s |
| Afternoon (20 Sep) | 10ft (3.0m) | 11s |
| Evening (20 Sep) | 11ft (3.5m) | 12s |
Table - waves today at Mera. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 190mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Sun morning). Winds decreasing (stormy winds from the NNW on Mon night, light winds from the NE by Tue afternoon). | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3680 | 3505 | 3402 | 3256 | 2904 | 2358 | 2729 | 3087 | 3403 | 4604 | 4930 | 4419 | 5994 | 6600 | 8603 | 19929 | 36542 | 13003 | 1908 | 961 | 712 | 495 | 440 | 266 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | off | off |
High Tide | 8:22PM1.20m | 3:07PM1.24m | 00:00AM1.16m | 3:20PM1.31m | ||||||||||||||||||||
Low Tide | 4:59AM0.57m | 6:48AM0.53m | 8:05PM1.09m | 7:52AM0.45m | 8:35PM0.97m | |||||||||||||||||||
 | |  |  | |  | | | | | | |  | |  | |  | | |  |  |  |  | | |
 | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — |
mm | 2 | 5 | 11 | 5 | 19 | 6 | 1 | 1 | 3 | 5 | 6 | 7 | 9 | 6 | 17 | 19 | 27 | 53 | 3 | 1 | — | — | — | 1 |
Temp °C | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 24 | 25 | 26 | 27 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 26 | 27 | 26 | 26 |
Feels °C | 23 | 22 | 21 | 18 | 19 | 20 | 19 | 20 | 22 | 24 | 27 | 28 | 28 | 27 | 23 | 22 | 17 | 11 | 25 | 27 | 27 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | — | — | S 14 | SSE 14 | SSE 13 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 8 |
| kJ | 3680 | 3505 | 3402 | 3256 | 2904 | 2358 | 2729 | 3087 | 3403 | 3680 | 4026 | 4419 | 5156 | — | — | 16337 | 36542 | 13003 | 1908 | 961 | 712 | 495 | 440 | 266 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | E 15 | NNW 6 | E 14 | E 14 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | — | — | — | — | ESE 11 | NNW 7 | E 10 | ENE 10 | ENE 10 | WSW 8 | WSW 7 |
| kJ | 90 | 4 | 3 | 15 | 15 | 31 | 29 | 51 | 72 | 69 | 93 | 86 | 84 | — | — | — | — | 1809 | 149 | 49 | 19 | 9 | 123 | 62 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 13 | — | NNW 6 | — | — | — | — | — | — | — | — | — | — | E 10 | NNW 6 | E 13 | E 13 | ENE 10 | ENE 10 |
| kJ | — | — | — | — | — | 30 | — | 3 | — | — | — | — | — | — | — | — | — | — | 71 | 10 | 3 | 3 | 9 | 19 |
Wind waves Height (m) Direction Period (s) | — | NE 9 | NE 5 | NE 5 | NE 6 | N 5 | NNE 5 | NE 6 | N 5 | SSE 12 | SSE 12 | — | SSE 12 | SSE 12 | SSE 12 | SSE 14 | — | NW 7 | WSW 10 | SW 9 | SW 9 | SW 8 | — | NE 2 |
| kJ | — | 12 | 68 | 140 | 123 | 43 | 45 | 277 | 15 | 4604 | 4930 | — | 5994 | 6600 | 8603 | 19929 | — | 1124 | 1205 | 885 | 594 | 322 | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 14 | 501 | 563 | 563 | 563 | 563 | 563 | 578 | 0 | 0 | 14 | 14 | 522 | 521 | 501 | 500 | 500 | 36 | 51 | 47 | 33 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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