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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 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 (31 May):
- Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 10s period with E swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 3ft (0.9m), 10s period with ESE swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 12s period with S swell.
The current surf forecast for Amatu at 3AM is: 0.9m 10s primary swell from a East direction and 0.6m 6s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 30). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 3ft (0.9m) | 10s |
| Afternoon (31 May) | 3ft (0.9m) | 10s |
| Evening (31 May) | 2.5ft (0.8m) | 12s |
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 Sun afternoon, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 30 | Sunday 31 | Monday 1 | Tuesday 2 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
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 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 14 | SSW 14 | |
180 | 171 | 171 | 167 | 164 | 164 | 125 | 176 | 161 | 174 | 160 | 154 | 151 | 149 | 146 | 196 | 180 | 395 | 307 | 390 | 250 | 323 | 687 | 778 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | on | cross-on | cross | cross | cross | cross | cross-on | cross-on | 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 | 10:09PM0.85m | 10:33AM0.04m | 10:45PM0.87m | 11:07AM0.02m | 11:20PM0.88m | 11:42AM0.02m | ||||||||||||||||||
 |  | |  |  | | | | |  | | |  | | | | | | | | | | | | |
 | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — |
 | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 21 | 20 | 20 | 20 | 22 | 24 | 25 | 22 | 21 | 20 | 19 | 19 | 23 | 24 | 23 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 22 |
22 | 22 | 21 | 20 | 21 | 23 | 25 | 25 | 23 | 21 | 19 | 18 | 19 | 24 | 23 | 21 | 20 | 19 | 19 | 19 | 21 | 21 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | 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 | E 10 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 14 | SSW 14 |
 kJ | 180 | 171 | 171 | 167 | 164 | 164 | 125 | 176 | 161 | 174 | 160 | 154 | 151 | 149 | 146 | 106 | 87 | 395 | 307 | 390 | 250 | 323 | 687 | 778 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SSE 6 | SE 6 | S 6 | S 13 | S 12 | S 12 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSW 14 | E 10 | E 10 | E 10 | SW 14 | SW 15 | E 10 | E 9 |
| kJ | 39 | 38 | 37 | 22 | 15 | 10 | 92 | 72 | 139 | 125 | 125 | 94 | 94 | 92 | 90 | 90 | 180 | 89 | 89 | 89 | 191 | 186 | 64 | 61 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | S 14 | SSE 6 | SSW 14 | SSW 14 | SE 12 | SE 12 | SE 11 | SE 12 | SSW 16 | SSW 16 | SSW 15 | SE 11 | SE 11 | SW 16 | SW 16 | E 10 | E 10 | SE 12 | SE 11 |
| kJ | 7 | 8 | 7 | 7 | 7 | 33 | 12 | 69 | 39 | 23 | 6 | 20 | 22 | 102 | 99 | 196 | 20 | 20 | 69 | 96 | 87 | 64 | 21 | 20 |
Wind waves Height (m) Direction Period (s) | — | — | SW 2 | — | WSW 3 | — | — | — | SW 3 | SW 5 | SW 6 | SSW 6 | SSW 6 | SSW 5 | SW 5 | SW 4 | SSW 10 | SW 4 | SSW 3 | SW 3 | — | — | S 4 | — |
| kJ | — | — | 1 | — | 1 | — | — | — | 6 | 59 | 114 | 87 | 49 | 36 | 24 | 8 | 170 | 4 | 4 | 6 | — | — | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 24 | 6 | 0 | 0 | 24 | 24 | 6 | 30 | 30 | 6 | 24 | 24 | 30 | 127 | 87 | 87 | 75 | 96 | 24 | 190 | 24 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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