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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Friday 15 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
18.3° C
(Which is 2.2°C colder than average for this time of year)How big are the waves at Mera today?
The current surf forecast for Mera at 4PM is: 1.3m 9s primary swell from a East direction and 0.5m 9s secondary swell from a Southeast direction, 0.1m 6s secondary swell from a South direction (forecast issued at 08:00am May 15). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 4.5ft (1.3m) | 9s |
| Afternoon (15 May) | 4.5ft (1.3m) | 9s |
| Evening (15 May) | 4ft (1.2m) | 9s |
Table - waves today at Mera. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 22°C on Sun night, min 16°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
375 | 293 | 288 | 295 | 251 | 234 | 196 | 194 | 185 | 157 | 155 | 70 | 85 | 73 | 75 | 99 | 203 | 208 | 248 | 280 | 322 | 322 | 315 | 294 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | on | cross-on | cross-on | glassy | |
High Tide | 4:05PM1.36m | 3:06AM1.40m | 4:57PM1.42m | 3:38AM1.45m | 5:48PM1.43m | |||||||||||||||||||
Low Tide | 9:20AM0.07m | 9:34PM0.71m | 10:01AM-0.08m | 10:16PM0.78m | 10:43AM-0.19m | 10:58PM0.85m | ||||||||||||||||||
 |  | | | |  | | | | | | | | | | | | | | | | | | | |
 | 4:37 | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 |
 | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 19 | 21 | 21 | 20 | 22 | 21 | 19 |
11 | 13 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 16 | 17 | 18 | 18 | 19 | 18 | 19 | 18 | 18 | 20 | 18 | 17 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 10 | SE 9 | SE 9 | SE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 21 | 45 | 43 | 43 | 38 | 234 | 196 | 194 | 185 | 157 | 155 | 54 | 85 | 73 | 75 | 99 | 203 | 208 | 248 | 280 | 322 | 322 | 315 | 294 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSE 12 | SE 12 | S 6 | SE 11 | SE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | SE 9 | SE 11 | E 8 | E 8 | E 8 | ENE 8 | SE 11 | SE 11 | NE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | NE 11 |
| kJ | 4 | 14 | 22 | 1 | 20 | 41 | 52 | 45 | 55 | 53 | 40 | 19 | 52 | 36 | 36 | 24 | 20 | 19 | 3 | 7 | 20 | 21 | 21 | 5 |
Swell 3 Height (m) Direction Period (s) | E 16 | SE 16 | S 7 | — | — | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SE 11 | NE 8 | ESE 9 | ESE 9 | ESE 9 | SE 10 | SE 11 | NE 8 | NE 9 | NE 9 | — | — | — | — |
| kJ | 5 | 10 | 1 | — | — | 19 | 19 | 19 | 21 | 22 | 20 | 2 | 17 | 34 | 32 | 16 | 19 | 18 | 3 | 13 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | — | — | NE 9 | NE 3 | — | E 9 | ESE 6 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 375 | 293 | 288 | 295 | 251 | — | — | 12 | 5 | — | 162 | 70 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 36 | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 204 | 64 | 12 | 33 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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