- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Saturday 30 May 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
21.8° C
(Which is normal for this time of year)How big are the waves at Amatu today (30 May):
- Afternoon surf: Afternoon surf (30 May, local time) - 3ft (0.9m), 11s period with ESE swell.
- Evening surf: Evening surf (30 May, local time) - 3ft (0.9m), 10s period with E swell.
The current surf forecast for Amatu at 9PM is: 0.9m 10s primary swell from a East direction and 0.7m 6s secondary swell from a Southeast direction (forecast issued at 02:00pm May 30). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | - | - |
| Afternoon (30 May) | 3ft (0.9m) | 11s |
| Evening (30 May) | 3ft (0.9m) | 10s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sat afternoon, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 11 | ESE 11 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | E 10 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 14 | |
191 | 187 | 180 | 171 | 171 | 167 | 164 | 164 | 125 | 176 | 161 | 174 | 160 | 154 | 151 | 149 | 147 | 217 | 279 | 443 | 545 | 461 | 672 | 722 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 5:06PM1.28m | 3:25AM1.35m | 5:46PM1.28m | 3:56AM1.35m | 6:25PM1.28m | 4:28AM1.35m | ||||||||||||||||||
Low Tide | 10:00AM0.09m | 10:09PM0.85m | 10:33AM0.04m | 10:45PM0.87m | 11:07AM0.02m | 11:20PM0.88m | ||||||||||||||||||
 | | |  |  | |  | | | |  | |  | | | | | | | | | | | | |
 | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 22 | 21 | 20 | 20 | 20 | 23 | 24 | 24 | 23 | 20 | 19 | 19 | 19 | 23 | 24 | 23 | 21 | 20 | 20 | 20 | 20 | 21 |
23 | 23 | 23 | 22 | 21 | 20 | 21 | 24 | 25 | 24 | 24 | 17 | 17 | 18 | 19 | 23 | 22 | 21 | 20 | 19 | 19 | 19 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | E 10 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 14 |
 kJ | 191 | 187 | 180 | 171 | 171 | 167 | 164 | 164 | 125 | 176 | 161 | 174 | 160 | 154 | 151 | 149 | 146 | 104 | 279 | 443 | 545 | 461 | 672 | 722 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 6 | SSE 6 | S 13 | S 12 | S 12 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSW 16 | S 10 | E 10 | E 10 | SW 16 | E 10 | E 10 |
| kJ | 45 | 46 | 39 | 38 | 37 | 22 | 22 | 10 | 92 | 72 | 139 | 125 | 125 | 94 | 94 | 92 | 90 | 217 | 100 | 89 | 90 | 271 | 87 | 64 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | S 14 | SSE 6 | SSW 14 | SSW 14 | SE 12 | SSE 12 | SE 11 | SE 12 | SSW 16 | SSW 16 | E 10 | E 10 | SW 18 | SW 18 | E 10 | SE 11 | SE 12 |
| kJ | 12 | 12 | 7 | 8 | 7 | 7 | 7 | 33 | 10 | 69 | 39 | 23 | 15 | 20 | 23 | 105 | 147 | 90 | 87 | 162 | 157 | 89 | 20 | 21 |
Wind waves Height (m) Direction Period (s) | ENE 4 | — | — | — | — | WSW 2 | S 6 | S 6 | WSW 3 | SW 6 | SW 6 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SW 4 | SSW 4 | SW 4 | SW 3 | SW 3 | — | — |
| kJ | 15 | — | — | — | — | 1 | 16 | 17 | 1 | 13 | 10 | 38 | 119 | 119 | 77 | 43 | 34 | 10 | 11 | 7 | 6 | 5 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 24 | 24 | 24 | 6 | 0 | 0 | 24 | 24 | 75 | 75 | 75 | 30 | 24 | 24 | 24 | 127 | 87 | 75 | 87 | 24 | 24 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Amatu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest