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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Friday 29 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
22.7° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Amatu today (30 May):
- Morning surf: Morning surf (30 May, local time) - 3ft (0.9m), 11s period with ESE swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 3ft (0.9m), 11s period with E swell.
- Evening surf: Evening surf (30 May, local time) - 3ft (0.9m), 10s period with E swell.
The current surf forecast for Amatu at 3AM is: 0.9m 11s primary swell from a East direction and 0.6m 7s secondary swell from a Southwest direction, 1.1m 6s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 29). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 3ft (0.9m) | 11s |
| 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 25°C on Mon morning, min 20°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Monday 1 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
SSW 7 | ESE 9 | ESE 10 | E 11 | ESE 11 | ESE 11 | E 11 | E 11 | E 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 15 | |
180 | 265 | 150 | 181 | 191 | 191 | 184 | 181 | 174 | 171 | 171 | 167 | 164 | 161 | 164 | 176 | 161 | 174 | 248 | 195 | 191 | 149 | 146 | 191 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-on | cross-on | cross-on | |
High Tide | 4:25PM1.25m | 2:55AM1.34m | 5:06PM1.28m | 3:25AM1.35m | 5:46PM1.28m | 3:56AM1.35m | ||||||||||||||||||
Low Tide | 9:29PM0.82m | 10:00AM0.09m | 10:09PM0.85m | 10:33AM0.04m | 10:45PM0.87m | 11:07AM0.02m | ||||||||||||||||||
 |  | |  |  | | |  | |  | | |  | | | | | | | | | | | | |
 | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — |
 | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | 6:46 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 20 | 20 | 21 | 23 | 24 | 23 | 22 | 21 | 21 | 20 | 20 | 23 | 23 | 23 | 23 | 22 | 21 | 20 | 20 | 24 | 25 | 24 |
22 | 21 | 18 | 17 | 19 | 22 | 24 | 23 | 24 | 23 | 22 | 21 | 21 | 24 | 23 | 24 | 23 | 21 | 20 | 20 | 20 | 24 | 24 | 23 | |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | ESE 10 | E 11 | ESE 11 | ESE 11 | E 11 | SE 6 | E 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 |
 kJ | 167 | 121 | 150 | 181 | 191 | 191 | 184 | 80 | 174 | 171 | 171 | 167 | 164 | 161 | 164 | 176 | 161 | 174 | 248 | 195 | 191 | 149 | 146 | 106 |
Swell 2 Height (m) Direction Period (s) | E 9 | NE 11 | SSW 7 | SW 7 | SSE 7 | SW 7 | SW 7 | E 11 | SE 6 | SE 6 | SE 6 | S 6 | SSE 6 | S 6 | S 13 | S 12 | S 12 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 180 | 19 | 68 | 43 | 17 | 18 | 12 | 181 | 60 | 43 | 35 | 17 | 11 | 10 | 92 | 72 | 139 | 125 | 123 | 123 | 92 | 90 | 90 | 89 |
Swell 3 Height (m) Direction Period (s) | NE 12 | S 14 | NE 11 | ENE 11 | SW 7 | ENE 11 | ENE 11 | SW 7 | SW 7 | SW 7 | SW 7 | ESE 5 | ESE 5 | S 14 | SSE 6 | SSW 14 | SSW 14 | SE 12 | SE 12 | SE 11 | SE 12 | SW 5 | SSW 16 | SSW 15 |
| kJ | 34 | 4 | 19 | 12 | 14 | 12 | 12 | 12 | 7 | 8 | 7 | 8 | 5 | 33 | 10 | 69 | 39 | 23 | 21 | 20 | 22 | 21 | 144 | 191 |
Wind waves Height (m) Direction Period (s) | E 3 | ESE 9 | ESE 5 | ESE 6 | E 5 | SE 6 | SE 6 | — | — | — | — | — | — | — | — | — | SW 6 | SSE 6 | SW 3 | SW 4 | SW 5 | WSW 5 | SW 5 | SW 5 |
| kJ | 5 | 265 | 85 | 85 | 32 | 73 | 80 | — | — | — | — | — | — | — | — | — | 13 | 12 | 5 | 20 | 30 | 46 | 12 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 35 | 96 | 190 | 35 | 40 | 24 | 24 | 24 | 24 | 24 | 24 | 6 | 0 | 24 | 24 | 24 | 24 | 24 | 30 | 6 | 0 | 24 | 24 | 24 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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