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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Tuesday 09 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
20.9° C
(Which is slightly warmer than usual)Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Fri 12 | |||||||||||||||||||||
| 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 | 9 | 9 | 9 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 6 | 6 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 40 | 27 | 31 | 30 | 41 | 40 | 43 | 74 | 148 | 144 | 141 | 141 | 113 | 82 | 88 | 139 | 104 | 102 | 98 | 96 | 188 | 312 | 621 | 330 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | cross- off | off | cross- off | cross- off | cross- off | cross | glass | off | off | cross- off | cross- off | cross | on | on | on | on | cross- on | cross |
High Tide / height (m) | 8:28AM 1.33 | 6:19PM 1.39 | 9:12AM 1.27 | 7:11PM 1.27 | 9:55AM 1.23 | 8:19PM 1.13 | ||||||||||||||||||
Low Tide / height (m) | 1:10PM 0.99 | 1:51AM 0.12 | 2:05PM 0.95 | 2:37AM 0.29 | 3:18PM 0.90 | |||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Fri 12 | |||||||||||||||||||||
| Sunrise | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - |
 |  | | |  | |  | | |  | | | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 14 | 14 | 16 | 16 | 16 | 14 |
| Feels °C (?) | 3 | 4 | 6 | 6 | 5 | 7 | 7 | 7 | 6 | 7 | 9 | 9 | 10 | 9 | 9 | 10 | 9 | 9 | 8 | 5 | 6 | 6 | 3 | 7 |
- 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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