Surf Forecasts:
Mera surf forecast from 17 Oct 2026:
- Best quality surf: Friday 23 Oct, 12AM (local time) - 6ft (1.8m), 15s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 22 Oct, 6AM (local time) - 7ft (2.2m), 16s period, S swell with 2,352 kJ wave energy.
- Next surfable swell (1★+): Sunday 18 Oct, 12AM (local time) - 3.5ft (1.1m), 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 Sunday (Oct 18) at 12AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.2m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mera in the next 16 days are 2.2m 16s and forecast to arrive on Thursday (Oct 22) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Thursday (Oct 22) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 18th Oct) | 3.5ft (1.1m) 7s |
| Best Surf | 12AM (Fri 23rd Oct) | 6ft (1.8m) 15s |
| Most Powerful | 6AM (Thu 22nd Oct) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Mera over the next 16 days.
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 19°C on Sat night). Winds increasing (light winds from the ENE on Sat night, fresh winds from the SW by Mon night). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Tue night. Warm (max 25°C on Wed morning, min 17°C on Thu night). Winds increasing (light winds from the SW on Tue night, near gales from the SW by Wed night). | |||||||||||||||||||
Sat 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||
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) | E 7 | E 7 | ESE 8 | SE 10 | ESE 7 | SE 5 | SE 6 | SE 8 | SSE 15 | SE 13 | SSE 12 | S 15 | S 14 | SSE 13 | S 15 | S 14 | SSW 15 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 161 | 124 | 6 | 17 | 31 | 73 | 83 | 132 | 188 | 519 | 616 | 567 | 598 | 1077 | 1920 | 1630 | 1441 | 1762 | 1471 | 1225 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | on | on | cross-on | on | on | on | cross | off | off | off | cross-off | cross-off |
High Tide | 6:35PM1.34m | 11:17AM1.13m | 7:03PM1.24m | 1:12PM1.16m | 8:02PM1.14m | 1:48PM1.22m | 11:22PM1.09m | 2:11PM1.28m | 1:08AM1.17m | 2:31PM1.34m | 2:10AM1.29m | 2:51PM1.39m | 3:00AM1.40m | |||||||
Low Tide | 2:33AM0.44m | 2:03PM1.10m | 3:51AM0.52m | 5:06PM1.12m | 5:33AM0.54m | 7:21PM1.01m | 6:51AM0.52m | 7:56PM0.87m | 7:44AM0.50m | 8:26PM0.70m | 8:27AM0.50m | 8:57PM0.53m | ||||||||
 |  | | |  |  | |  | |  |  | | | | |  | | | | | |
 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — |
 | 5:04 | — | — | 5:02 | — | — | 5:01 | — | — | 5:00 | — | — | 4:59 | — | — | 4:58 | — | — | 4:57 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | 2 | — | — | — | — | — | — |
Temp °C | 20 | 20 | 21 | 21 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 25 | 25 | 25 | 22 | 19 | 18 | 18 | 18 | 19 |
Feels °C | 16 | 16 | 18 | 19 | 19 | 19 | 19 | 21 | 22 | 22 | 25 | 22 | 21 | 19 | 21 | 14 | 12 | 14 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ESE 8 | ENE 9 | ENE 9 | ESE 7 | SE 5 | SE 6 | SE 8 | SE 9 | SE 13 | SSE 12 | SE 12 | S 14 | SSE 13 | S 15 | S 14 | SSW 15 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 41 | 7 | 17 | 16 | 31 | 73 | 83 | 132 | 144 | 519 | 616 | 407 | 598 | 1077 | 1920 | 1630 | 1441 | 1762 | 1471 | 1225 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | ESE 8 | ESE 7 | SE 10 | E 9 | E 9 | SSE 14 | SSE 15 | SSE 17 | S 17 | S 15 | SSE 11 | S 16 | WSW 7 | SE 9 | SE 8 | SE 8 | — | — |
| kJ | 5 | 5 | 6 | 10 | 16 | 6 | 7 | 41 | 188 | 57 | 290 | 567 | 170 | 737 | 91 | 128 | 102 | 118 | — | — |
Swell 3 Height (m) Direction Period (s) | S 12 | SE 11 | S 7 | SE 10 | ENE 9 | NE 12 | SE 16 | SSE 17 | E 9 | — | E 8 | — | S 19 | SSW 21 | SE 9 | WSW 7 | WSW 6 | — | — | — |
| kJ | 3 | 5 | 3 | 17 | 16 | 5 | 10 | 30 | 1 | — | 1 | — | 259 | 144 | 99 | 35 | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 5 | ESE 5 | SE 5 | SSW 4 | SSW 5 | SW 5 | SSW 5 | SSW 5 | SW 5 | SSW 5 | SSW 6 | SW 7 | W 6 | ENE 6 | ENE 6 | E 8 | E 8 | ESE 8 |
| kJ | 161 | 124 | 37 | 31 | 32 | 21 | 52 | 89 | 69 | 44 | 11 | 83 | 402 | 408 | 194 | 87 | 160 | 275 | 233 | 372 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 47 | 0 | 563 | 563 | 153 | 153 | 529 | 73 | 60 | 36 | 12 | 504 | 504 | 501 | 12 | 148 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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