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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Thursday 30 Apr 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
20.8° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 9AM is: 1.7m 7s primary swell from a East direction and 0.3m 6s secondary swell from a Southwest direction, 0.1m 12s secondary swell from a South direction (forecast issued at 02:00am April 30). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 5.5ft (1.7m) | 7s |
| Afternoon (30 Apr) | 4.5ft (1.3m) | 6s |
| Evening (30 Apr) | 0.5ft (0.1m) | 13s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 72mm), heaviest during Thu night. Very mild (max 19°C on Sat afternoon, min 13°C on Thu morning). Mainly near gales. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 6 | SW 6 | SW 6 | E 7 | E 7 | E 6 | SE 9 | E 13 | SE 6 | SE 7 | SE 8 | SSE 8 | SSE 8 | SSE 9 | SW 8 | SW 8 | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | |
34 | 21 | 12 | 250 | 192 | 135 | 13 | 3 | 239 | 440 | 816 | 1318 | 1103 | 975 | 1113 | 2126 | 2829 | 2296 | 1336 | 988 | 627 | 367 | 314 | 227 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-off | |
High Tide | 3:12AM1.32m | 4:23PM1.29m | 3:34AM1.37m | 5:02PM1.31m | 3:57AM1.39m | 5:38PM1.32m | ||||||||||||||||||
Low Tide | 9:18PM0.54m | 9:49AM0.15m | 9:52PM0.60m | 10:19AM0.05m | 10:24PM0.65m | 10:49AM-0.01m | ||||||||||||||||||
 |  |  | |  | | | |  |  |  | | | |  |  |  | | | | | |  | | |
 | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — |
— | 2 | — | — | 2 | 1 | 1 | 3 | 9 | 11 | 23 | 17 | 5 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 14 | 14 | 13 | 14 | 15 | 16 | 16 | 16 | 17 | 16 | 15 | 17 | 18 | 17 | 16 | 15 | 16 | 17 | 18 | 19 | 18 | 18 |
11 | 9 | 7 | 8 | 8 | 10 | 11 | 13 | 12 | 13 | 12 | 13 | 13 | 16 | 11 | 6 | 6 | 8 | 15 | 15 | 16 | 17 | 15 | 17 | |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SE 9 | SW 6 | SW 6 | E 13 | E 12 | SSE 8 | SSE 8 | SSE 9 | SE 9 | ESE 9 | ESE 9 | ESE 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 |
 kJ | 34 | 21 | 12 | 5 | 5 | 5 | 13 | 1 | 1 | 3 | 3 | 1056 | 1103 | 975 | 388 | 172 | 106 | 81 | 1336 | 988 | 627 | 367 | 314 | 227 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SSE 8 | S 12 | SE 9 | SSE 10 | SW 6 | NE 8 | SW 6 | E 13 | — | E 13 | NNW 4 | NE 13 | E 12 | SSE 8 | NE 12 | NE 12 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 3 | 3 | 7 | 3 | 3 | 9 | 1 | 2 | 1 | 3 | — | 3 | 1 | 7 | 3 | 82 | 6 | 6 | 40 | 106 | 98 | 94 | 92 | 86 |
Swell 3 Height (m) Direction Period (s) | SE 11 | S 12 | S 12 | S 12 | S 12 | S 12 | NE 8 | E 13 | E 13 | E 11 | NE 13 | — | E 13 | NE 13 | E 10 | — | — | NE 12 | SE 11 | NE 11 | SSE 8 | SSE 7 | S 7 | SSE 7 |
| kJ | 5 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 2 | 7 | — | 3 | 7 | 2 | — | — | 6 | 40 | 5 | 19 | 10 | 9 | 10 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | E 7 | E 7 | E 6 | ESE 6 | ESE 6 | SE 6 | SE 7 | SE 8 | SSE 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | — | — | — | — | — | — |
| kJ | 176 | 237 | 282 | 250 | 192 | 135 | 113 | 156 | 239 | 440 | 816 | 1318 | 328 | 319 | 1113 | 2126 | 2829 | 2296 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2335 | 1081 | 244 | 533 | 0 | 808 | 890 | 883 | 578 | 14 | 500 | 63 | 39 | 148 | 500 | 500 | 61 | 36 | 33 | 33 | 47 | 47 | 47 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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