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Surf Forecasts:
Mera surfForecast / Chiba / Japan
16 Day Weather and Surf, issued 2 am Friday 17 Apr 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
17.6° C
(Which is slightly cooler than normal)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 Friday (Apr 17) at 9AM. The primary swell is predicted to be 1.7m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mera in the next 16 days are 3.0m 15s and forecast to arrive on Sunday (Apr 19) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 11s period and expected on Friday (Apr 17) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 17th Apr) | 5.5ft (1.7m) 15s |
| Best Surf | 12PM (Sun 19th Apr) | 8ft (2.5m) 15s |
| Most Powerful | 6PM (Sun 19th Apr) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Mera over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Very mild (max 18°C on Sun morning, min 11°C on Fri morning). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Wed afternoon, min 16°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 1254 | 956 | 2282 | 2472 | 2102 | 2042 | 2699 | 3456 | 3110 | 2042 | 1659 | 1299 | 947 | 764 | 534 | 373 | 238 | 143 | 80 | 77 | 50 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- on | cross- on | cross- off | off | cross- off | off | off | cross- off | cross | on | cross- on | on | on | cross- on | on | on | on | cross- off |
High Tide / height (m) | 4:53PM 1.42 | 4:23AM 1.41 | 5:40PM 1.43 | 4:48AM 1.44 | 6:29PM 1.40 | 5:15AM 1.45 | 7:21PM 1.32 | 5:43AM 1.43 | 8:20PM 1.23 | 6:13AM 1.37 | 9:33PM 1.13 | 6:47AM 1.28 | 11:11PM 1.08 | ||||||||
Low Tide / height (m) | 10:24AM 0.05 | 10:41PM 0.50 | 11:01AM -0.08 | 11:15PM 0.61 | 11:39AM -0.15 | 11:49PM 0.72 | 12:20PM -0.16 | 12:23AM 0.82 | 1:05PM -0.11 | 12:58AM 0.91 | 1:55PM -0.02 | 1:38AM 0.97 | 2:55PM 0.11 | 2:41AM 1.01 | |||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
| Sunrise | 5:07 | - | - | 5:05 | - | - | 5:05 | - | - | 5:03 | - | - | 5:01 | - | - | 5:01 | - | - | 5:00 | - | - |
| Sunset | - | 6:13 | - | - | 6:14 | - | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - | - | 6:16 | - | - | 6:17 | - |
 |  |  | | |  | |  |  | | | | | | | | | | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 28 |
| Temp. °C | 13 | 13 | 15 | 16 | 17 | 17 | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 18 | 18 | 18 | 19 | 18 | 19 | 19 | 15 |
| Feels °C (?) | 9 | 9 | 14 | 15 | 15 | 16 | 16 | 15 | 16 | 13 | 13 | 13 | 14 | 13 | 15 | 16 | 15 | 14 | 17 | 19 | 10 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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