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) - 11ft (3.5m), 11s period with SE swell.
- Evening surf: Evening surf (20 Sep, local time) - 11ft (3.5m), 12s period with SSE swell.
The current surf forecast for Mera at 4PM is: 3.5m 11s primary swell from a Southeast direction and 0.3m 13s secondary swell from a East direction (forecast issued at 08:00am September 20). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 11ft (3.5m) | 12s |
| Afternoon (20 Sep) | 11ft (3.5m) | 11s |
| Evening (20 Sep) | 11ft (3.5m) | 12s |
Table - waves today at Mera. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 126mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Sun morning). Mainly stormy winds. | ||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||
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 11 | SE 11 | SE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 | SSE 14 | SE 10 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 3253 | 2845 | 2767 | 2788 | 2918 | 2981 | 3609 | 3921 | 5895 | 5417 | 6600 | 8165 | 14149 | 30758 | 28742 | 1836 | 1220 | 748 | 612 | 509 | 356 | 253 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | cross-on | cross | off | cross-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 | 18 | 11 | 15 | 8 | 3 | 2 | 4 | 6 | 8 | 5 | 4 | 5 | 10 | 13 | 19 | 11 | 1 | — | — | — | — | 1 |
Temp °C | 23 | 22 | 23 | 23 | 23 | 24 | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 26 | 26 | 27 | 26 | 25 |
Feels °C | 22 | 20 | 21 | 22 | 22 | 23 | 24 | 27 | 28 | 28 | 28 | 26 | 24 | 21 | 17 | 13 | 27 | 26 | 28 | 30 | 27 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | E 11 | — | — | — | SSE 14 | SE 10 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 8 | S 8 |
| kJ | 3253 | 2845 | 2767 | 2788 | 2918 | 2981 | 3609 | 3921 | 4791 | 5417 | 86 | — | — | — | 28742 | 1765 | 1220 | 748 | 612 | 509 | 356 | 253 |
Swell 2 Height (m) Direction Period (s) | — | E 14 | E 14 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | — | — | — | — | — | SSW 12 | E 9 | ENE 10 | ENE 10 | WSW 8 | WSW 7 | WSW 7 |
| kJ | — | 15 | 15 | 31 | 29 | 51 | 72 | 69 | 65 | 85 | — | — | — | — | — | 1836 | 83 | 33 | 19 | 123 | 40 | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NW 6 | NNW 4 | — | — | — | — | — | — | — | S 11 | NNW 6 | NNW 5 | E 13 | ENE 10 | ENE 10 | ENE 10 |
| kJ | — | — | — | — | — | — | 8 | 4 | — | — | — | — | — | — | — | 898 | 37 | 2 | 3 | 19 | 19 | 19 |
Wind waves Height (m) Direction Period (s) | NE 9 | NNE 4 | NNW 5 | NNE 5 | NNE 4 | NNE 4 | — | N 4 | SSE 12 | — | SSE 12 | SSE 12 | SSE 13 | SSE 14 | — | WNW 7 | SW 10 | SW 9 | WSW 8 | — | — | ENE 10 |
| kJ | 12 | 31 | 3 | 40 | 31 | 46 | — | 12 | 5895 | — | 6600 | 8165 | 14149 | 30758 | — | 804 | 1070 | 690 | 365 | — | — | 55 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 54 | 563 | 563 | 57 | 563 | 563 | 578 | 0 | 14 | 578 | 1245 | 544 | 521 | 501 | 500 | 73 | 36 | 63 | 47 | 14 | 0 | 39 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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