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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Sunday 07 Dec 2025 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
21.9° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 11AM is: 1.6m 6s primary swell from a West-southwest direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 08:00am December 07). An open ocean swell of 0.2m 16s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Dec) | 5.5ft (1.7m) | 6s |
| Afternoon (07 Dec) | 6ft (1.8m) | 6s |
| Evening (07 Dec) | 4.5ft (1.4m) | 7s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 07 | Monday 08 | Tuesday 09 | Wed 10 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 163 | 194 | 151 | 253 | 161 | 175 | 147 | 38 | 107 | 320 | 483 | 578 | 522 | 320 | 255 | 59 | 32 | 30 | 44 | 45 | 71 | 135 | 149 | 166 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | off | off | off | off | off | off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:56AM 1.45 | 4:52PM 1.56 | 7:42AM 1.39 | 5:34PM 1.49 | 8:28AM 1.33 | 6:19PM 1.39 | ||||||||||||||||||
Low Tide / height (m) | 11:42AM 1.02 | 12:20AM -0.13 | 12:24PM 1.01 | 1:05AM -0.02 | 1:10PM 0.99 | 1:51AM 0.12 | ||||||||||||||||||
Sunday 07 | Monday 08 | Tuesday 09 | Wed 10 | |||||||||||||||||||||
| Sunrise | - | 6:33 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - |
 |  | | | | | | | | |  | |  |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 13 | 13 | 14 | 15 | 14 | 14 | 13 | 14 | 17 | 17 | 16 | 16 | 13 | 12 | 11 | 10 | 10 | 11 | 11 | 12 | 12 | 12 |
| Feels °C (?) | 4 | 5 | 8 | 10 | 11 | 12 | 11 | 11 | 9 | 6 | 7 | 5 | 4 | 10 | 6 | 5 | 4 | 4 | 4 | 6 | 7 | 9 | 9 | 9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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