Surf Forecasts:
Mera surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 6PM (local time) - 13ft (4.0m), 11s period, S swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 3PM (local time) - 15ft (4.5m), 11s period, SSE swell with 4,252 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 3PM (local time) - 5.5ft (1.7m), 7s period with E swell.
Best Forecast Surf Conditions for Mera this week:
The surf forecast for Mera over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 3PM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 0.8m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mera in the next 16 days are 4.5m 11s and forecast to arrive on Monday (Sep 07) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Sunday (Sep 06) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sat 5th Sep) | 5.5ft (1.7m) 7s |
| Best Surf | 6PM (Mon 7th Sep) | 13ft (4.0m) 11s |
| Most Powerful | 3PM (Mon 7th Sep) | 15ft (4.5m) 11s |
Table - best surf conditions forecast for Mera over the next 16 days.
Short Range ForecastHeavy rain (total 348mm), heaviest during Sun night. Warm (max 26°C on Sun night, min 22°C on Fri night). Mainly near gales. | Days 5-7 Weather SummaryHeavy rain (total 62mm), heaviest during Mon night. Warm (max 28°C on Wed morning, min 20°C on Thu afternoon). Winds increasing (calm on Mon night, fresh winds from the SSW by Wed afternoon). | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 10 | SSW 10 | E 7 | SW 9 | SW 9 | S 8 | E 8 | S 10 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | SSW 10 | SSW 9 | S 9 | S 9 | S 9 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 149 | 122 | 266 | 71 | 29 | 30 | 1572 | 2105 | 4252 | 2785 | 1348 | 1479 | 485 | 370 | 433 | 678 | 441 | 318 | 239 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross | cross-off | glassy | cross-off | off | cross-off | on | on | on | cross-off | cross-off | cross-off |
High Tide | 8:29PM1.38m | 3:39PM1.28m | 10:32PM1.30m | 3:39PM1.35m | 1:03AM1.33m | 3:58PM1.41m | 2:21AM1.43m | 4:17PM1.45m | 3:17AM1.52m | 4:38PM1.49m | |||||||||
Low Tide | 4:17AM0.40m | 6:04AM0.38m | 6:50PM1.25m | 7:32AM0.30m | 8:28PM1.14m | 8:33AM0.22m | 9:07PM0.99m | 9:20AM0.18m | 9:42PM0.83m | 9:59AM0.18m | 10:14PM0.67m | ||||||||
 |  |  |  |  | |  | | | | | |  |  | | |  | |  | |
 | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | 6:04 | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:57 | — | — | 5:55 | — |
mm | 41 | 23 | — | — | 8 | 12 | 177 | 37 | 50 | 14 | 10 | 9 | 5 | 6 | 7 | 9 | 2 | — | — |
Temp °C | 24 | 22 | 22 | 22 | 22 | 23 | 26 | 24 | 24 | 25 | 25 | 24 | 25 | 28 | 27 | 27 | 24 | 21 | 21 |
Feels °C | 25 | 20 | 20 | 19 | 17 | 20 | 21 | 18 | 25 | 27 | 28 | 25 | 27 | 28 | 26 | 27 | 26 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SW 10 | SW 9 | SW 9 | S 8 | S 11 | E 9 | E 9 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | SSE 8 | SSE 8 | S 9 | S 9 | S 9 | S 8 |
| kJ | 149 | 122 | 120 | 71 | 29 | 30 | 350 | 828 | 276 | 2785 | 1348 | 1479 | 485 | 321 | 347 | 678 | 441 | 318 | 239 |
Swell 2 Height (m) Direction Period (s) | E 9 | SE 9 | ENE 13 | SSE 8 | SSE 8 | SW 10 | SW 10 | — | — | E 9 | ENE 9 | E 9 | SSW 10 | SSW 10 | SSW 9 | E 9 | E 15 | E 15 | ENE 8 |
| kJ | 41 | 12 | 17 | 7 | 13 | 15 | 4 | — | — | 235 | 144 | 106 | 410 | 370 | 433 | 14 | 69 | 67 | 128 |
Swell 3 Height (m) Direction Period (s) | SE 7 | ENE 13 | SE 8 | ENE 12 | SE 12 | E 15 | — | — | — | — | SSE 13 | E 19 | E 9 | E 9 | ENE 9 | E 16 | SE 11 | SE 10 | E 14 |
| kJ | 22 | 17 | 3 | 15 | 6 | 4 | — | — | — | — | 35 | 7 | 60 | 43 | 28 | 45 | 29 | 28 | 102 |
Wind waves Height (m) Direction Period (s) | ENE 3 | E 6 | E 7 | ENE 6 | ENE 7 | ENE 8 | E 8 | S 10 | SSE 11 | — | NE 3 | ENE 9 | NE 5 | N 3 | ENE 9 | NE 4 | ENE 6 | NE 6 | NNW 4 |
| kJ | 7 | 206 | 266 | 253 | 433 | 576 | 1572 | 2105 | 4252 | — | 3 | 227 | 25 | 1 | 75 | 10 | 111 | 118 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 14 | 0 | 500 | 500 | 563 | 521 | 69 | 36 | 0 | 0 | 0 | 0 | 36 | 55 | 36 | 12 | 12 | 33 |
Best forecast wave conditions in Chiba | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Mera Surf forecast
The above surf forecast table for Mera provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mera can be found by selecting the local surf guide option on the grey menu. Our Mera surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mera) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Mera may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Mera is 9 km (6 miles) from Tateyama. If you plan a holiday in Chiba, look for hotels and other accommodation in Tateyama. Tateyama has rooms for a wide range of budgets as well as car hire and transport links.
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