Surf Forecasts:
How big are the waves at Mera today (21 Sep):
- Afternoon surf: Afternoon surf (21 Sep, local time) - 20ft (6.0m), 13s period with SSE swell.
- Evening surf: Evening surf (21 Sep, local time) - 15ft (4.5m), 12s period with SSE swell.
The current surf forecast for Mera at 9PM is: 4.5m 12s primary swell from a South-southeast direction and 2.1m 10s secondary swell from a East direction (forecast issued at 02:00pm September 21). An open ocean swell of 3.0m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | - | - |
| Afternoon (21 Sep) | 20ft (6.0m) | 13s |
| Evening (21 Sep) | 15ft (4.5m) | 12s |
Table - waves today at Mera. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 191mm), heaviest during Mon afternoon. Warm (max 27°C on Mon night, min 22°C on Wed night). Winds decreasing (severe gales from the NNW on Mon night, light winds from the ESE by Tue afternoon). | ||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||
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) | SSE 13 | SSE 13 | SSE 13 | SSE 12 | S 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 8 | S 7 | S 7 | S 7 | SSE 6 | SSE 6 | SSE 6 | SSE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 8957 | 12111 | 14553 | 6193 | 1084 | 502 | 402 | 368 | 295 | 240 | 197 | 151 | 115 | 70 | 48 | 44 | 44 | 45 | 47 | 7 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off |
High Tide | 3:07PM1.24m | 00:00AM1.16m | 3:20PM1.31m | 1:33AM1.25m | 3:36PM1.37m | |||||||||||||||
Low Tide | 8:05PM1.09m | 7:52AM0.45m | 8:35PM0.97m | 8:35AM0.38m | ||||||||||||||||
 |  |  |  |  |  |  | |  | |  | | | |  | | | | | | |
 | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — |
mm | 9 | 59 | 85 | 29 | — | — | — | — | — | — | 1 | — | 1 | 2 | 1 | 2 | 1 | 2 | 2 | 2 |
Temp °C | 27 | 26 | 26 | 25 | 27 | 26 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 |
Feels °C | 25 | 23 | 23 | 16 | 27 | 27 | 26 | 26 | 28 | 29 | 25 | 24 | 24 | 22 | 21 | 21 | 21 | 22 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 13 | SSE 13 | SSE 12 | S 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 8 | S 7 | S 7 | S 7 | SSE 6 | SSE 6 | SSE 6 | NE 10 |
| kJ | 8957 | 12111 | 14553 | 6193 | 1084 | 502 | 402 | 368 | 295 | 240 | 197 | 151 | 115 | 70 | 48 | 44 | 44 | 45 | 47 | 23 |
Swell 2 Height (m) Direction Period (s) | — | — | E 10 | E 10 | E 10 | E 9 | E 9 | SW 8 | SW 6 | WSW 6 | ENE 9 | ENE 10 | ENE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSW 8 | SSE 9 | SSE 9 |
| kJ | — | — | 1697 | 861 | 400 | 318 | 136 | 182 | 66 | 15 | 29 | 31 | 30 | 9 | 8 | 8 | 8 | 6 | 8 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 6 | N 5 | NW 4 | ENE 9 | E 9 | ENE 9 | WSW 6 | E 13 | ENE 10 | SSE 9 | SSE 9 | SSE 9 | E 12 | — | SSW 8 | SSW 8 |
| kJ | — | — | — | — | 142 | 14 | 1 | 66 | 44 | 29 | 7 | 3 | 31 | 8 | 8 | 8 | 3 | — | 6 | 6 |
Wind waves Height (m) Direction Period (s) | E 11 | E 9 | N 6 | NNW 7 | NW 6 | WSW 8 | SW 6 | SW 6 | — | — | SE 3 | ENE 4 | ESE 4 | E 5 | E 5 | E 5 | E 6 | E 6 | E 5 | ESE 6 |
| kJ | 84 | 1533 | 169 | 887 | 226 | 106 | 120 | 132 | — | — | 2 | 5 | 19 | 54 | 104 | 112 | 101 | 105 | 85 | 114 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 522 | 521 | 501 | 87 | 52 | 33 | 57 | 47 | 39 | 0 | 47 | 14 | 14 | 204 | 533 | 848 | 1419 | 1419 | 1039 | 204 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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