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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Monday 25 May 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
20.7° C
(Which is slightly cooler than normal)How big are the waves at Mera today?
The current surf forecast for Mera at 2PM is: 1.4m 8s primary swell from a East-southeast direction and 0.3m 8s secondary swell from a South-southwest direction (forecast issued at 08:00am May 25). An open ocean swell of 1.0m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 4.5ft (1.3m) | 8s |
| Afternoon (25 May) | 4.5ft (1.4m) | 8s |
| Evening (25 May) | 4.5ft (1.3m) | 8s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 23°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | |
248 | 200 | 229 | 213 | 213 | 204 | 204 | 181 | 187 | 183 | 192 | 179 | 174 | 179 | 149 | 145 | 138 | 153 | 153 | 181 | 208 | 203 | 178 | 160 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | |
High Tide | 12:00PM1.00m | 00:34AM1.19m | 1:37PM1.05m | 1:08AM1.24m | 2:46PM1.13m | 1:40AM1.29m | ||||||||||||||||||
Low Tide | 6:23AM0.70m | 5:55PM0.58m | 7:23AM0.53m | 6:56PM0.68m | 8:08AM0.37m | 7:50PM0.76m | ||||||||||||||||||
 |  | | | |  |  | | | | |  | | |  | | |  |  | | | | | | |
 | 4:31 | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:30 |
 | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | |
Temp °C | 19 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |
18 | 20 | 21 | 20 | 21 | 20 | 21 | 20 | 19 | 22 | 22 | 22 | 21 | 21 | 21 | 22 | 22 | 24 | 25 | 24 | 25 | 25 | 24 | 23 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | ENE 11 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
 kJ | 248 | 200 | 229 | 263 | 213 | 204 | 204 | 181 | 187 | 183 | 192 | 179 | 174 | 179 | 149 | 145 | 138 | 153 | 153 | 181 | 208 | 203 | 178 | 160 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 11 | SSW 8 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 193 | 265 | 249 | 14 | 273 | 273 | 217 | 210 | 206 | 198 | 155 | 146 | 106 | 104 | 104 | 77 | 75 | 56 | 54 | 44 | 40 | 43 | 42 | 40 |
Swell 3 Height (m) Direction Period (s) | ESE 11 | ESE 11 | SSW 9 | SSW 9 | SW 8 | S 7 | S 7 | SE 15 | S 7 | S 7 | ESE 15 | S 6 | ESE 15 | ESE 15 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 13 | ESE 13 |
| kJ | 12 | 12 | 8 | 15 | 17 | 15 | 24 | 9 | 15 | 8 | 22 | 3 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 18 | 18 | 17 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 10 | — | ESE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 321 | 341 | — | 213 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 14 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 70 | 0 | 0 | 0 | 0 | 0 | 0 | 47 | 47 | 12 | 64 | 64 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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