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Surf Forecasts:
Mera surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Thursday 28 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
21.5° C
(Which is normal for this time of year)How big are the waves at Mera today (28 May):
- Afternoon surf: Afternoon surf (28 May, local time) - 3.5ft (1.1m), 9s period with ESE swell.
- Evening surf: Evening surf (28 May, local time) - 5ft (1.5m), 7s period with SSW swell.
The current surf forecast for Mera at 9PM is: 1.5m 7s primary swell from a South-southwest direction and 1.1m 9s secondary swell from a East-southeast direction (forecast issued at 02:00pm May 28). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | - | - |
| Afternoon (28 May) | 3.5ft (1.1m) | 9s |
| Evening (28 May) | 5ft (1.5m) | 7s |
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 24°C on Fri morning, min 20°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, calm by Sat morning). | ||||||||||||||||||||||||
Thu 28 | Friday 29 | Saturday 30 | Sun 31 | |||||||||||||||||||||
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 8 | ESE 9 | ESE 9 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | E 9 | E 9 | SW 7 | E 11 | E 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | |
177 | 189 | 193 | 195 | 324 | 480 | 475 | 336 | 258 | 229 | 211 | 341 | 93 | 146 | 114 | 194 | 191 | 191 | 187 | 214 | 177 | 173 | 184 | 125 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | on | on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | cross-on | cross-on | on | on | on | on | on | |
High Tide | 3:39PM1.20m | 2:12AM1.34m | 4:22PM1.26m | 2:44AM1.37m | 5:01PM1.30m | 3:17AM1.39m | ||||||||||||||||||
Low Tide | 8:37PM0.81m | 9:22AM0.13m | 9:19PM0.84m | 9:56AM0.06m | 9:58PM0.86m | |||||||||||||||||||
 | | |  |  |  |  | | |  | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | 6:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 21 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 23 | 22 | 22 | 21 | 21 | 21 | 22 |
22 | 22 | 22 | 21 | 20 | 18 | 21 | 25 | 26 | 19 | 19 | 18 | 17 | 17 | 18 | 21 | 22 | 23 | 21 | 21 | 20 | 21 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 10 | E 10 | E 10 | E 10 | ESE 10 | SW 7 | SW 7 | SW 7 | SW 7 | E 11 | E 11 | ENE 6 | ESE 11 | ESE 11 | ESE 11 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 |
 kJ | 177 | 189 | 193 | 189 | 226 | 188 | 148 | 148 | 150 | 229 | 205 | 115 | 93 | 146 | 114 | 52 | 191 | 191 | 187 | 214 | 177 | 173 | 184 | 125 |
Swell 2 Height (m) Direction Period (s) | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ESE 12 | ENE 11 | ENE 11 | ESE 9 | ENE 11 | S 7 | S 14 | SW 7 | SW 7 | ESE 11 | E 5 | E 5 | SSE 6 | SSE 6 | ESE 5 | S 6 | E 5 | S 6 |
| kJ | 27 | 22 | 21 | 21 | 41 | 47 | 15 | 13 | 12 | 147 | 12 | 32 | 4 | 47 | 30 | 194 | 25 | 12 | 22 | 25 | 10 | 11 | 9 | 6 |
Swell 3 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | — | — | S 16 | NE 12 | ESE 13 | S 15 | ENE 11 | ESE 12 | ENE 11 | S 14 | SSE 6 | SSE 6 | SW 7 | S 6 | S 6 | E 5 | SW 7 | S 6 | E 5 | SW 6 | E 6 |
| kJ | 17 | 16 | 31 | — | — | 5 | 6 | 16 | 4 | 13 | 15 | 12 | 4 | 14 | 14 | 30 | 20 | 20 | 11 | 16 | 12 | 9 | 11 | 5 |
Wind waves Height (m) Direction Period (s) | S 4 | S 5 | SSW 6 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | — | E 9 | E 9 | E 5 | E 6 | ENE 6 | ENE 5 | NE 5 | E 5 | — | — | — | W 3 | W 3 | — |
| kJ | 9 | 22 | 92 | 195 | 324 | 480 | 475 | 336 | 258 | — | 211 | 341 | 166 | 197 | 140 | 51 | 11 | 11 | — | — | — | 1 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 47 | 64 | 64 | 148 | 61 | 60 | 33 | 12 | 12 | 47 | 148 | 43 | 501 | 14 | 0 | 0 | 0 | 64 | 64 | 64 | 64 | 64 | 64 | 36 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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