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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Tuesday 12 May 2026 JSTForecast update in hr min s Forecast update imminent
Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mera sea temperature is
19.1° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 2PM is: 1.4m 9s primary swell from a Southeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 08:00am May 12). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 4.5ft (1.3m) | 9s |
| Afternoon (12 May) | 4.5ft (1.4m) | 9s |
| Evening (12 May) | 4.5ft (1.4m) | 9s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 20°C on Wed afternoon, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | |
311 | 287 | 328 | 328 | 365 | 330 | 330 | 323 | 346 | 354 | 393 | 462 | 472 | 482 | 480 | 480 | 463 | 450 | 441 | 490 | 480 | 463 | 464 | 470 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross | cross | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | |
High Tide | 12:48PM1.04m | 1:35AM1.21m | 2:07PM1.15m | 2:05AM1.27m | 3:10PM1.26m | 2:35AM1.34m | ||||||||||||||||||
Low Tide | 7:12AM0.65m | 7:01PM0.50m | 7:59AM0.46m | 7:59PM0.56m | 8:40AM0.26m | 8:49PM0.63m | ||||||||||||||||||
 | | | | |  |  | |  | | | |  |  | | | |  | | | | | | | |
 | 4:39 | — | — | — | — | — | — | 4:39 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:37 |
 | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — | 6:36 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 17 | 17 | 18 | 19 | 20 | 20 | 19 | 18 | 18 | 17 | 19 | 19 | 20 | 18 | 16 | 16 | 16 |
17 | 18 | 17 | 17 | 17 | 19 | 18 | 16 | 15 | 16 | 18 | 20 | 20 | 18 | 17 | 16 | 15 | 17 | 17 | 18 | 15 | 13 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | NE 10 | E 10 | E 10 | E 10 | — |
 kJ | 311 | 287 | 328 | 328 | 365 | 330 | 330 | 323 | 346 | 354 | 393 | 462 | 472 | 482 | 480 | 480 | 463 | 450 | 441 | 4 | 480 | 463 | 267 | — |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | E 10 | E 10 | — | NE 9 | NE 9 | N 9 | NE 9 | NE 12 | NE 12 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | — | NNE 10 | — | — | — |
| kJ | 2 | 2 | 2 | 2 | — | 3 | 3 | 2 | 3 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | — | 10 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | E 13 | NE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | NNE 3 | — | NE 4 | — | E 10 | — | NE 5 | E 10 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | — | 21 | — | 490 | — | 49 | 464 | 470 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 0 | 36 | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 14 | 47 | 0 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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