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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Tuesday 31 Mar 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
15.2° C
(Which is 2.3°C colder than average for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 3PM is: 4.5m 9s primary swell from a South-southwest direction and 0.1m 16s secondary swell from a Southeast direction (forecast issued at 08:00am March 31). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Mar) | 7ft (2.1m) | 6s |
| Afternoon (31 Mar) | 15ft (4.5m) | 9s |
| Evening (31 Mar) | 18ft (5.5m) | 11s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 03 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 117 | 344 | 971 | 2862 | 4810 | 6308 | 4281 | 2994 | 1256 | 954 | 636 | 399 | 269 | 179 | 131 | 105 | 197 | 373 | 299 | 261 | 289 | 208 | 104 | 73 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | off | cross- off |
High Tide / height (m) | 3:54AM 1.27 | 3:43PM 1.30 | 4:11AM 1.31 | 4:26PM 1.34 | 4:30AM 1.36 | 5:05PM 1.36 | ||||||||||||||||||
Low Tide / height (m) | 9:47AM 0.45 | 9:55PM 0.25 | 10:16AM 0.30 | 10:26PM 0.32 | 10:45AM 0.17 | 10:55PM 0.40 | ||||||||||||||||||
Tuesday 31 | Wednesday 01 | Thursday 02 | Fri 03 | |||||||||||||||||||||
| Sunrise | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - |
 |  |  | | |  |  | |  | | | | |  |  | | | | | | |  | |  | |
Rain (mm) | - | 1 | 6 | 4 | 1 | 1 | - | - | - | - | - | 1 | 6 | 6 | 14 | 10 | - | 1 | - | - | - | - | - | - |
| Temp. °C | 18 | 16 | 16 | 17 | 18 | 19 | 17 | 15 | 15 | 15 | 15 | 13 | 13 | 14 | 12 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 12 | 12 |
| Feels °C (?) | 11 | 9 | 8 | 5 | 7 | 10 | 10 | 9 | 15 | 10 | 10 | 7 | 8 | 12 | 5 | 2 | 3 | 4 | 6 | 8 | 8 | 8 | 9 | 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.
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