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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Saturday 25 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Amatu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Amatu sea temperature is
20.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 12AM is: 1.3m 7s primary swell from a East direction and 0.4m 16s secondary swell from a East-northeast direction (forecast issued at 08:00pm April 25). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Apr) | - | - |
| Afternoon (26 Apr) | - | - |
| Evening (26 Apr) | 4.5ft (1.4m) | 7s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 30mm), heaviest during Sun night. Very mild (max 19°C on Tue afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
E 7 | E 7 | E 7 | ENE 7 | NE 14 | NE 14 | NE 14 | NE 14 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 7 | ESE 7 | ESE 7 | SE 7 | NE 7 | NE 7 | ESE 7 | ESE 8 | ESE 8 | E 8 | |
200 | 199 | 163 | 147 | 169 | 164 | 158 | 91 | 87 | 85 | 88 | 112 | 200 | 195 | 120 | 96 | 88 | 80 | 156 | 54 | 57 | 58 | 58 | 55 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-off | off | off | cross-off | cross-off | cross-off | glassy | glassy | on | cross-on | cross-on | |
High Tide | 1:19AM1.12m | 12:12PM1.03m | 1:55AM1.17m | 1:47PM1.10m | 2:24AM1.24m | 2:49PM1.18m | ||||||||||||||||||
Low Tide | 5:39PM0.36m | 7:12AM0.83m | 6:57PM0.42m | 8:07AM0.65m | 7:56PM0.45m | 8:46AM0.48m | ||||||||||||||||||
 |  |  |  | | | | |  | | |  |  |  | | | | | | | | | | | |
 | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — |
 | 6:19 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:21 |
— | — | — | — | — | — | — | — | — | — | — | 3 | 14 | 13 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 14 | 14 | 13 | 14 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 16 | 17 | 17 | 15 | 14 | 14 | 14 | 14 | 17 | 18 | 19 |
11 | 10 | 11 | 11 | 12 | 13 | 14 | 15 | 15 | 16 | 15 | 15 | 15 | 13 | 12 | 14 | 13 | 12 | 13 | 14 | 13 | 14 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | NE 13 | NE 12 | E 7 | E 6 | ENE 7 | SE 6 | ENE 7 | NE 14 | ESE 6 | SE 6 | SE 6 | NE 13 | NE 13 | SE 6 | ESE 7 | ESE 7 | ESE 7 | SE 7 | NE 7 | NE 7 | ESE 7 | ESE 8 | ESE 8 | E 8 |
 kJ | 80 | 74 | 163 | 120 | 73 | 33 | 47 | 91 | 85 | 85 | 88 | 83 | 59 | 195 | 120 | 96 | 88 | 71 | 75 | 54 | 57 | 58 | 58 | 55 |
Swell 2 Height (m) Direction Period (s) | S 7 | ENE 16 | ENE 16 | ENE 15 | SE 6 | NE 14 | NE 14 | ENE 8 | NE 13 | NE 13 | NE 13 | NE 8 | ENE 8 | NE 12 | SSW 6 | SSW 6 | SSW 6 | SW 6 | ESE 7 | ESE 7 | NE 7 | NE 7 | NE 7 | NE 6 |
| kJ | 9 | 25 | 95 | 87 | 26 | 164 | 158 | 32 | 87 | 84 | 83 | 15 | 12 | 40 | 25 | 25 | 19 | 15 | 59 | 47 | 39 | 24 | 23 | 15 |
Swell 3 Height (m) Direction Period (s) | ENE 16 | NE 16 | NE 12 | NE 12 | NE 14 | SE 11 | SE 11 | SE 13 | SE 13 | ENE 9 | ENE 9 | ESE 12 | ESE 12 | NE 8 | NE 12 | NE 12 | NE 12 | S 6 | SSW 6 | SSW 7 | S 6 | SSW 7 | NE 11 | SSE 7 |
| kJ | 26 | 10 | 36 | 35 | 169 | 5 | 5 | 7 | 7 | 8 | 15 | 14 | 14 | 17 | 37 | 36 | 22 | 11 | 32 | 35 | 21 | 26 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | — | ENE 7 | E 6 | ENE 7 | SE 6 | ESE 6 | SE 6 | — | — | SE 6 | SE 6 | SW 5 | NW 3 | — | NE 3 | NE 6 | NE 7 | — | — | — | SSW 7 | S 6 |
| kJ | 200 | 199 | — | 147 | 137 | 62 | 39 | 63 | 83 | — | — | 112 | 200 | 56 | 2 | — | 4 | 80 | 156 | — | — | — | 25 | 29 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 804 | 601 | 87 | 16 | 0 | 24 | 24 | 24 | 24 | 24 | 24 | 40 | 190 | 35 | 96 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 24 | 24 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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