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Surf Forecasts:
Mera surfForecast / Chiba / Japan
16 Day Weather and Surf, issued 2 pm Tuesday 19 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
20.9° C
(Which is normal for this time of year)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 (May 25) at 12AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.4m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mera in the next 16 days are 2.2m 9s and forecast to arrive on Saturday (May 23) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Friday (May 22) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 25th May) | 4.5ft (1.3m) 9s |
| Best Surf | 12AM (Mon 25th May) | 4.5ft (1.3m) 9s |
| Most Powerful | 6PM (Sat 23rd May) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Mera over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu afternoon. Warm (max 22°C on Wed night, min 15°C on Fri morning). Winds increasing (light winds from the WSW on Thu afternoon, near gales from the N by Fri morning). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun morning. Warm (max 20°C on Mon morning, min 14°C on Fri night). Winds decreasing (near gales from the NNE on Fri afternoon, light winds from the NNE by Mon morning). | ||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SE 11 | ESE 10 | SE 10 | ESE 10 | ESE 10 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 7 | SW 8 | SW 7 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | |
110 | 212 | 102 | 168 | 157 | 286 | 557 | 348 | 166 | 115 | 23 | 9 | 2 | 2 | 461 | 343 | 252 | 220 | 169 | 108 | 61 | |
Wind (km/h) | |||||||||||||||||||||
on | on | on | on | on | on | cross-on | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | |
High Tide | 7:31PM1.35m | 5:28AM1.45m | 8:25PM1.29m | 6:11AM1.37m | 9:21PM1.22m | 7:00AM1.27m | 10:18PM1.18m | 8:06AM1.14m | 11:11PM1.16m | 9:52AM1.03m | 11:56PM1.16m | 12:00PM1.00m | 00:34AM1.19m | ||||||||
Low Tide | 00:19AM0.94m | 12:59PM-0.13m | 1:04AM0.96m | 1:49PM-0.01m | 1:57AM0.95m | 2:43PM0.14m | 3:10AM0.92m | 3:43PM0.30m | 4:51AM0.84m | 4:48PM0.45m | 6:23AM0.70m | 5:55PM0.58m | 7:23AM0.53m | ||||||||
 |  | |  |  |  |  |  | | | | | |  | | |  |  | | | | |
 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 |
 | 6:38 | — | — | 6:39 | — | — | 6:39 | — | — | 6:40 | — | — | 6:42 | — | — | 6:43 | — | — | 6:43 | — | 6:44 |
— | — | — | — | 2 | 3 | 14 | 15 | 5 | 1 | — | — | — | — | 3 | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 21 | 21 | 22 | 21 | 20 | 17 | 15 | 15 | 15 | 18 | 18 | 17 | 17 | 19 | 19 | 20 | 21 | 19 | 20 |
17 | 18 | 19 | 18 | 22 | 20 | 20 | 14 | 5 | 6 | 5 | 11 | 11 | 11 | 12 | 18 | 18 | 19 | 21 | 17 | 19 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | ESE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 7 | SW 8 | E 9 | E 9 | E 9 | E 9 | E 9 | S 8 | E 8 | E 8 |
 kJ | 110 | 212 | 102 | 168 | 157 | 105 | 83 | 348 | 166 | 115 | 23 | 9 | 2 | 661 | 461 | 343 | 252 | 220 | 117 | 108 | 61 |
Swell 2 Height (m) Direction Period (s) | E 9 | NE 9 | E 10 | NE 8 | NE 8 | NE 8 | NE 8 | ESE 10 | — | — | — | — | — | SW 7 | SW 7 | N 3 | SE 11 | S 8 | SE 11 | S 7 | SSE 6 |
| kJ | 79 | 3 | 70 | 3 | 3 | 2 | 2 | 52 | — | — | — | — | — | 2 | 2 | 1 | 30 | 99 | 29 | 37 | 15 |
Swell 3 Height (m) Direction Period (s) | NE 9 | — | SE 5 | — | — | — | NE 12 | ESE 10 | — | — | — | — | — | — | — | NNW 4 | E 16 | SE 6 | E 16 | SE 7 | ESE 10 |
| kJ | 3 | — | 6 | — | — | — | 5 | 72 | — | — | — | — | — | — | — | 1 | 5 | 19 | 5 | 21 | 40 |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 3 | SW 4 | SSW 4 | SSW 4 | SSW 7 | SSW 8 | NE 4 | NE 7 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | N 4 | — | NE 3 | NE 4 | E 8 | — | E 4 |
| kJ | 8 | 6 | 10 | 21 | 12 | 286 | 557 | 43 | 394 | 910 | 1081 | 1102 | 994 | 847 | 9 | — | 6 | 18 | 169 | — | 20 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 529 | 73 | 153 | 504 | 73 | 36 | 12 | 14 | 501 | 563 | 500 | 890 | 153 | 563 | 153 | 56 | 0 | 0 | 0 | 0 | 0 |
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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