Mera Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Mera surfForecast / Chiba / Japan

12 Day Weather and Surf, issued 2 pm Thursday 28 Aug 2025 JST

Forecast 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 26.8° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Mera this week:

The surf forecast for Mera over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 29) at 9AM. The primary swell is predicted to be 0.6m and 11s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 12 days are 0.9m 12s and forecast to arrive on Thursday (Sep 04) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Thursday (Aug 28) at 9PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	9AM (Fri 29th Aug)	2ft (0.6m) 11s
Best Surf	9AM (Fri 29th Aug)	2ft (0.6m) 11s
Most Powerful	9PM (Thu 4th Sep)	3ft (0.9m) 12s

Table - best surf conditions forecast for Mera over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Thu night). Wind will be generally light.											Days 3-6 Weather Summary Some drizzle, heaviest during Wed morning. Warm (max 28°C on Sun afternoon, min 26°C on Sun night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the NNE by Wed morning).
	Thu 28		Friday 29			Saturday 30			Sunday 31			Monday 01			Tuesday 02			Wednesday 03
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	ESE	SE	E	ESE	ESE	E	E	E	E	E	SE	E	ESE	SW	SW	SW	ESE	ESE	ESE
Period(s) (?)	10	9	11	11	9	10	9	9	9	9	9	8	9	10	10	5	6	6	10	10	9
Wave Graph (?)
Energy (?)	60	73	79	77	98	105	105	94	88	81	76	69	56	84	105	155	202	164	114	82	137
Wind (km/h)	E	NNE	NNE	SW	SW	WSW	SW	SW	WSW	SSW	SSW	WSW	SSW	SW	SW	SW	WSW	NNE	E	E	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	glass	on	on	cross- on	on	on	cross- on	on	on	on	on	on	on	on	on	off	cross- off	glass	glass
High Tide / height (m)		6:57PM 1.49	7:49AM 1.26		7:15PM 1.45	8:42AM 1.16		7:34PM 1.41	10:11AM 1.07		7:56PM 1.36			8:26PM 1.30		3:59PM 1.21	9:51PM 1.23		3:45PM 1.29	12:31AM 1.25
Low Tide / height (m)		1:32AM 0.47		1:19PM 0.77	2:09AM 0.49		1:39PM 0.89	2:57AM 0.53		1:50PM 1.01		4:10AM 0.56			6:02AM 0.54		6:24PM 1.20	7:31AM 0.44		8:21PM 1.13	8:27AM 0.33

	Thu 28		Friday 29			Saturday 30			Sunday 31			Monday 01			Tuesday 02			Wednesday 03
Sunrise	-	-	5:09	-	-	5:11	-	-	5:11	-	-	5:11	-	-	5:13	-	-	5:13	-	-	5:13
Sunset	6:13	-	-	6:12	-	-	6:10	-	-	6:08	-	-	6:07	-	-	6:07	-	-	6:05	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1	1	-	-
Temp. °C	27	26	26	27	26	27	28	27	28	28	27	27	27	27	27	27	27	27	27	26	26
Feels °C (?)	27	27	30	29	29	31	31	30	32	31	31	30	28	28	28	25	26	31	29	31	31

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Chiba

Wind Update Continuing clean conditions at Mera (light winds from the E at Tateyama 9 km from Mera). 0.3m 5s windswell from the SW to make surfable waves.
1 hour 24 minutes ago Mera

Expand

View all

1 h 24 min ago

7 km/h

Clean

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Information about the Mera Surf forecast

The above surf forecast table for Mera provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mera can be found by selecting the local surf guide option on the grey menu. Our Mera surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mera) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Mera may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Mera is 9 km (6 miles) from Tateyama. If you plan a holiday in Chiba, look for hotels and other accommodation in Tateyama. Tateyama has rooms for a wide range of budgets as well as car hire and transport links.