Surf Forecasts:
Mera surf forecast from 12 Jul 2026:
- Best quality surf: Monday 13 Jul, 3AM (local time) - 6.5ft (2.0m), 14s period, SW swell with glassy winds.
- Most powerful swell: Sunday 12 Jul, 3PM (local time) - 10ft (3.0m), 16s period, SW swell with 3,891 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 3AM (local time) - 6.5ft (2.0m), 14s period with SW 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 Monday (Jul 13) at 3AM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 1.1m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mera in the next 16 days are 3.0m 16s and forecast to arrive on Sunday (Jul 12) at 3PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 13th Jul) | 6.5ft (2.0m) 14s |
| Best Surf | 3AM (Mon 13th Jul) | 6.5ft (2.0m) 14s |
| Most Powerful | 3PM (Sun 12th Jul) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Mera over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 28°C on Mon afternoon, min 25°C on Sun morning). Winds decreasing (fresh winds from the SW on Sun night, calm by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
AM | PM | 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) | SW 16 | SW 16 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 10 | SW 10 | SW 9 | SW 9 | E 9 | E 9 | E 9 | E 8 | E 9 | SE 16 | SE 14 | SE 12 | SE 11 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4703 | 3891 | 2265 | 1249 | 597 | 433 | 273 | 192 | 142 | 88 | 84 | 78 | 93 | 99 | 92 | 99 | 581 | 1962 | 1968 | 1363 | 680 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-off | glassy | off | glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy | cross-off | cross-off | off |
High Tide | 4:28PM1.38m | 2:03AM1.47m | 5:12PM1.44m | 3:03AM1.53m | 5:50PM1.47m | 3:57AM1.57m | 6:24PM1.48m | 4:48AM1.58m | 6:55PM1.46m | 5:36AM1.55m | 7:24PM1.44m | 6:24AM1.48m | 7:50PM1.42m | ||||||||
Low Tide | 9:03PM1.11m | 9:40AM-0.05m | 9:58PM1.07m | 10:28AM-0.11m | 10:43PM1.00m | 11:13AM-0.12m | 11:25PM0.92m | 11:56AM-0.07m | 00:06AM0.84m | 12:35PM0.04m | 00:47AM0.76m | 1:11PM0.19m | 1:30AM0.69m | ||||||||
 | |  | | |  |  | |  |  | |  | | | | | | | | | | |
 | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — |
 | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 26 | 27 | 30 | 30 | 32 | 30 | 30 | 29 | 28 | 29 | 29 | 28 | 28 | 27 | 28 | 29 | 29 | 30 | 30 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 10 | SW 10 | SW 9 | SW 9 | E 9 | E 9 | E 9 | E 8 | E 9 | SE 16 | SE 14 | SE 12 | SE 11 | ESE 9 |
| kJ | 4703 | 3891 | 2265 | 1249 | 597 | 433 | 273 | 192 | 142 | 88 | 84 | 78 | 93 | 99 | 92 | 99 | 581 | 1962 | 1968 | 1363 | 680 |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 9 | E 9 | E 9 | SW 6 | SW 6 | E 9 | E 10 | E 10 | E 9 | E 8 | SW 9 | SW 8 | SE 10 | SW 8 | SE 10 | E 9 | E 8 | SW 8 | WSW 8 | SW 10 |
| kJ | 41 | 64 | 27 | 26 | 39 | 24 | 27 | 32 | 31 | 42 | 29 | 39 | 35 | 16 | 18 | 15 | 101 | 92 | 10 | 6 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | E 9 | E 9 | SE 12 | SE 12 | SE 10 | SE 11 | ESE 9 | SE 9 | SSE 9 | SW 10 | SE 10 | SW 8 | SW 8 | SW 9 | SW 10 | SW 10 | — |
| kJ | 39 | 27 | 25 | 16 | 26 | 26 | 22 | 22 | 26 | 18 | 29 | 13 | 8 | 4 | 15 | 10 | 22 | 27 | 4 | 4 | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 5 | — | — | — | — | — | SSW 3 | SSW 3 | SSW 3 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | — | — | — | — | — |
| kJ | — | — | 51 | — | — | — | — | — | 3 | 2 | 2 | 14 | 18 | 50 | 27 | 7 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 61 | 70 | 51 | 0 | 0 | 0 | 0 | 64 | 64 | 70 | 64 | 64 | 64 | 64 | 64 | 64 | 47 | 0 | 0 | 14 | 0 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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