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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Sunday 03 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
20.4° C
(Which is slightly warmer than usual)How big are the waves at Mera today?
The current surf forecast for Mera at 7AM is: 1.1m 7s primary swell from a Southwest direction and 0.8m 8s secondary swell from a Southwest direction, 0.7m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am May 03). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 May) | 2.5ft (0.8m) | 10s |
| Afternoon (03 May) | 2.5ft (0.7m) | 9s |
| Evening (03 May) | 5.5ft (1.7m) | 6s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Mon morning. Warm (max 21°C on Sun night, min 15°C on Mon night). Winds decreasing (gales from the SW on Sun night, light winds from the NNE by Mon night). | ||||||||||||||||||||||||
Sunday 3 | Monday 4 | Tuesday 5 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 8 | ESE 10 | SW 8 | ESE 10 | ESE 10 | ESE 9 | SSW 5 | SSW 6 | SSW 6 | SSW 8 | SSW 8 | SW 9 | SW 10 | SW 9 | SW 9 | WSW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | ESE 10 | ESE 10 | |
300 | 138 | 133 | 105 | 103 | 92 | 102 | 201 | 331 | 1086 | 2302 | 2993 | 2262 | 2332 | 2244 | 2053 | 1202 | 788 | 497 | 287 | 178 | 102 | 69 | 63 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | glassy | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | off | off | off | cross-off | cross | cross | cross | cross-on | |
High Tide | 4:22AM1.40m | 6:15PM1.30m | 4:47AM1.39m | 6:52PM1.27m | 5:13AM1.36m | 7:31PM1.22m | ||||||||||||||||||
Low Tide | 10:55PM0.70m | 11:19AM-0.03m | 11:26PM0.75m | 11:50AM-0.02m | 11:57PM0.79m | 12:22PM0.02m | ||||||||||||||||||
 | |  | |  | | |  | | |  |  | | | |  | | | | |  | | | | |
 | — | 4:48 | — | — | — | — | — | — | — | 4:48 | — | — | — | — | — | — | — | 4:47 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:28 | — |
— | — | — | — | — | — | — | — | — | — | 2 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 19 | 18 | 18 | 20 | 20 | 19 | 19 | 20 | 20 | 21 | 19 | 19 | 20 | 19 | 18 | 17 | 15 | 15 | 16 | 17 | 17 | 17 | 18 |
20 | 18 | 19 | 16 | 17 | 15 | 13 | 13 | 13 | 11 | 11 | 11 | 10 | 10 | 9 | 8 | 14 | 7 | 7 | 10 | 13 | 12 | 12 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | WSW 8 |
 kJ | 206 | 138 | 82 | 105 | 103 | 92 | 92 | 68 | 68 | 68 | 51 | 56 | 35 | 41 | 42 | 43 | 43 | 788 | 497 | 287 | 178 | 102 | 69 | 43 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 10 | ESE 10 | SW 7 | E 10 | E 10 | E 10 | NE 10 | NE 10 | NE 10 | — | — | — | — | — | — | — | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 100 | 135 | 98 | 52 | 2 | 2 | 2 | 4 | 4 | 4 | — | — | — | — | — | — | — | 41 | 40 | 38 | 55 | 55 | 64 | 63 |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 11 | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 7 | SSE 7 | SSE 7 | N 8 | — |
| kJ | 5 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 | 17 | 16 | 1 | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | — | SW 8 | SW 7 | SW 6 | SW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 8 | SSW 8 | SW 9 | SW 10 | SW 9 | SW 9 | WSW 9 | SW 9 | — | NE 4 | ENE 5 | ENE 4 | ESE 4 | SE 4 | SE 4 |
| kJ | 300 | — | 133 | 89 | 59 | 70 | 102 | 201 | 331 | 1086 | 2302 | 2993 | 2262 | 2332 | 2244 | 2053 | 1202 | — | 15 | 37 | 16 | 11 | 17 | 26 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 36 | 2040 | 2040 | 2051 | 767 | 767 | 501 | 483 | 501 | 483 | 521 | 500 | 36 | 0 | 50 | 43 | 14 | 36 | 47 | 64 | 64 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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