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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Wednesday 29 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
20.9° 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 2PM is: 1.1m 6s primary swell from a Southwest direction and 0.3m 9s secondary swell from a East direction (forecast issued at 08:00am April 29). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 5ft (1.6m) | 6s |
| Afternoon (29 Apr) | 3.5ft (1.0m) | 6s |
| Evening (29 Apr) | 2.5ft (0.8m) | 6s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 69mm), heaviest during Fri morning. Very mild (max 18°C on Wed morning, min 13°C on Wed night). Mainly gales. | ||||||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 1 | Sat 2 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | E 6 | E 7 | E 6 | SW 6 | SW 6 | ESE 6 | SE 6 | SE 7 | SE 8 | SSE 8 | SSE 9 | SSW 8 | SW 8 | SW 9 | WSW 9 | |
278 | 200 | 124 | 73 | 52 | 43 | 28 | 22 | 12 | 240 | 192 | 135 | 1 | 1 | 190 | 306 | 777 | 1032 | 1468 | 1261 | 989 | 2248 | 2924 | 2210 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-off | glassy | on | on | cross-on | cross-on | |
High Tide | 3:41PM1.23m | 3:12AM1.32m | 4:23PM1.29m | 3:34AM1.37m | 5:02PM1.31m | |||||||||||||||||||
Low Tide | 9:18AM0.29m | 9:18PM0.54m | 9:49AM0.15m | 9:52PM0.60m | 10:19AM0.05m | 10:24PM0.65m | ||||||||||||||||||
 |  | | | |  |  | |  | | | | | |  | |  | | | | |  |  | | |
 | 4:52 | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:24 | — | — | 6:24 |
— | — | — | — | — | — | 2 | 3 | 1 | 1 | 2 | 2 | 1 | 2 | 6 | 9 | 15 | 23 | 2 | — | — | — | — | — | |
Temp °C | 19 | 18 | 18 | 17 | 16 | 16 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 17 | 18 | 15 | 16 | 18 | 17 | 15 | 15 |
13 | 16 | 18 | 15 | 10 | 10 | 8 | 7 | 8 | 8 | 8 | 10 | 9 | 12 | 13 | 14 | 13 | 18 | 12 | 17 | 12 | 5 | 4 | 7 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | NE 8 | E 12 | NE 13 | SSE 8 | SSE 9 | SE 9 | ESE 9 | ESE 9 | ESE 10 |
 kJ | 26 | 26 | 124 | 73 | 52 | 43 | 28 | 22 | 12 | 9 | 5 | 5 | 1 | 1 | 1 | 2 | 3 | 6 | 1136 | 1261 | 481 | 261 | 139 | 148 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | E 9 | E 9 | SE 11 | SE 8 | SE 8 | SE 8 | SSE 8 | S 12 | SE 9 | SE 9 | NE 8 | NE 8 | SW 6 | NE 13 | — | NE 8 | E 13 | E 13 | NE 12 | NE 12 | NE 12 | NE 12 |
| kJ | 5 | 5 | 14 | 14 | 5 | 3 | 3 | 3 | 7 | 3 | 3 | 3 | 2 | 2 | 1 | 7 | — | 2 | 3 | 3 | 6 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | S 13 | S 13 | SE 11 | NE 8 | S 13 | SE 11 | SE 11 | SE 11 | S 12 | SE 12 | S 12 | NE 8 | NE 8 | — | E 13 | E 13 | — | NE 13 | NE 8 | NE 13 | — | — | — | — |
| kJ | 3 | 3 | 5 | 3 | 3 | 5 | 5 | 5 | 3 | 6 | 3 | 2 | 2 | — | 3 | 4 | — | 6 | 3 | 6 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | — | NE 5 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | E 6 | E 7 | E 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SE 7 | SE 8 | SSE 8 | SSW 8 | SSW 8 | SW 8 | SW 9 | WSW 9 |
| kJ | 278 | 200 | — | 4 | 38 | 126 | 159 | 205 | 230 | 240 | 192 | 135 | 117 | 141 | 190 | 306 | 777 | 1032 | 1468 | 650 | 989 | 2248 | 2924 | 2210 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 36 | 43 | 0 | 47 | 914 | 1081 | 153 | 1081 | 1081 | 1081 | 0 | 0 | 501 | 767 | 767 | 578 | 483 | 70 | 47 | 0 | 61 | 500 | 36 | 61 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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