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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Saturday 09 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
19.9° C
(Which is normal for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 1PM is: 1.3m 8s primary swell from a West-southwest direction and 0.8m 10s secondary swell from a Southeast direction (forecast issued at 08:00am May 09). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 8ft (2.5m) | 8s |
| Afternoon (09 May) | 3.5ft (1.0m) | 7s |
| Evening (09 May) | 2.5ft (0.7m) | 10s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Warm (max 20°C on Sat afternoon, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 7 | WSW 8 | WSW 8 | SW 7 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 9 | ESE 10 | ESE 10 | ESE 10 | |
611 | 916 | 198 | 108 | 115 | 112 | 108 | 104 | 100 | 122 | 131 | 88 | 75 | 73 | 73 | 68 | 130 | 127 | 125 | 181 | 183 | 122 | 122 | 151 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | off | cross-off | cross-off | cross | cross | cross | cross-off | off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:25AM1.12m | 11:28PM1.08m | 8:42AM1.03m | 00:24AM1.10m | 10:52AM0.99m | 1:03AM1.15m | ||||||||||||||||||
Low Tide | 3:23PM0.30m | 4:20AM0.91m | 4:35PM0.38m | 6:08AM0.82m | 5:53PM0.44m | |||||||||||||||||||
 | |  | | |  |  | | | |  | | | | |  | | | | | | | | | |
 | 4:43 | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:41 | — | — | — | — | — | — | — | 4:39 |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:32 | — | — | 6:32 |
— | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 19 | 20 | 18 | 18 | 18 | 18 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 |
14 | 13 | 17 | 16 | 14 | 14 | 16 | 16 | 14 | 16 | 15 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 15 | 15 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | WSW 8 | WSW 8 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSE 5 | ESE 10 | ESE 10 | SE 10 | SE 9 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 106 | 394 | 198 | 108 | 115 | 112 | 108 | 104 | 100 | 122 | 131 | 88 | 75 | 73 | 73 | 68 | 37 | 127 | 125 | 181 | 183 | 122 | 122 | 151 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SE 10 | SE 10 | ENE 5 | ENE 5 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | S 4 | SW 7 | WSW 6 | WSW 6 | SE 11 | SE 11 | SE 11 | ESE 10 | SSE 5 | SSE 5 | — | — | NE 11 | — | SSE 8 |
| kJ | 21 | 104 | 122 | 2 | 2 | 20 | 27 | 26 | 16 | 12 | 11 | 4 | 4 | 20 | 20 | 30 | 130 | 28 | 19 | — | — | 5 | — | 82 |
Swell 3 Height (m) Direction Period (s) | — | SSE 8 | NE 5 | NE 5 | — | ENE 5 | ENE 5 | ENE 4 | S 6 | WSW 7 | — | — | NE 6 | W 6 | W 6 | W 6 | — | — | — | — | E 11 | — | NE 11 | E 11 |
| kJ | — | 11 | 1 | 8 | — | 2 | 2 | 2 | 3 | 18 | — | — | 2 | 1 | 1 | 1 | — | — | — | — | 2 | — | 5 | 2 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 8 | — | SW 7 | SW 7 | SSW 4 | S 4 | S 5 | S 5 | — | SSE 4 | SE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | — | — | S 4 | — | — | SSE 8 | SSE 8 | — |
| kJ | 611 | 916 | — | 100 | 77 | 22 | 40 | 47 | 21 | — | 8 | 55 | 72 | 66 | 62 | 58 | — | — | 10 | — | — | 82 | 82 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 0 | 0 | 0 | 70 | 153 | 47 | 0 | 0 | 0 | 47 | 64 | 64 | 64 | 64 | 61 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 61 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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