Mainside Surf Break
Lat Long: 26.44° N 127.71° E

Mainside Surf Forecast and Surf Report

Weather Forecast for Mainside

Issued: 2 am 07 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mainside sea temperature is
25.1° C

1.6°C colder than average for this time of year

Mainside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Mainside surf forecast from 7 Jun 2026:

  • Best quality surf: Thursday 11 Jun, 9AM (local time) - 3.5ft (1.0m), 6s period, N swell with cross-offshore winds.
  • Most powerful swell: Saturday 13 Jun, 12AM (local time) - 6.5ft (2.0m), 7s period, ENE swell with 330 kJ wave energy.
  • Next surfable swell (1★+): Thursday 11 Jun, 9AM (local time) - 3.5ft (1.0m), 6s period with N swell.

Best Forecast Surf Conditions for Mainside this week:

The surf forecast for Mainside over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 11) at 9AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mainside in the next 16 days are 2.0m 7s and forecast to arrive on Saturday (Jun 13) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Thursday (Jun 11) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 11th Jun)3.5ft (1.0m) 6s
Best Surf 9AM (Thu 11th Jun)3.5ft (1.0m) 6s
Most Powerful12AM (Sat 13th Jun)6.5ft (2.0m) 7s

Table - best surf conditions forecast for Mainside over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 51mm), heaviest during Tue morning. Warm (max 28°C on Mon afternoon, min 25°C on Mon night). Winds increasing (light winds from the SSW on Sun night, strong winds from the SW by Tue night).

Days 4-6 Weather Summary

Heavy rain (total 162mm), heaviest during Wed night. Warm (max 27°C on Wed morning, min 18°C on Thu night). Winds decreasing (strong winds from the SSW on Wed morning, light winds from the NE by Thu morning).

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
WNW
6
0.4
NW
6
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
1.1
N
7
1
N
6
0.6
N
6
0.4
NE
10
0.2
NNE
7
1
N
6
0.9
SSW
8
0.1
E
9
0.8
SSW
9
0.8
SSW
8
2
ENE
7
1
E
7
0.7
ENE
7
0.6
E
8
Wave Graph
Metric surfscale
Energy kJ
33
15
15
14
14
14
14
124
81
22
35
4
64
0
2
0
0
330
107
54
44
Wind (km/h)
30
SW
25
SW
20
SSW
30
SSW
30
SSW
35
SSW
35
SSW
35
SSW
40
SSW
40
SSW
35
SSW
10
WNW
10
NE
30
NE
25
ENE
35
ENE
40
ENE
35
ENE
25
NE
10
ENE
35
S
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:55AM1.66m
00:31AM1.70m
12:13PM1.57m
1:30AM1.71m
1:49PM1.54m
2:28AM1.75m
3:22PM1.60m
3:24AM1.82m
4:38PM1.70m
4:15AM1.90m
5:40PM1.81m
5:02AM1.99m
6:33PM1.91m
Low Tide
5:43PM0.55m
6:35AM0.97m
6:46PM0.68m
7:52AM0.86m
7:57PM0.79m
9:05AM0.70m
9:09PM0.86m
10:08AM0.51m
10:15PM0.91m
11:03AM0.32m
11:13PM0.93m
11:53AM0.15m
00:05AM0.94m
thunderstorm
part cloud
rain showers
thunderstorm
thunderstorm
mod rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:35
5:35
5:35
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:20
7:20
7:20
7:21
7:21
7:22
7:22
 mm
4
1
1
2
8
13
10
12
4
13
42
12
16
28
16
18
13
1
8
59
Temp °C
26
26
26
27
28
27
26
26
26
27
26
25
23
23
19
19
20
23
23
23
26
Feels °C
26
27
28
26
28
27
25
26
24
24
25
27
26
22
15
14
18
21
22
25
22
Swell 1
Height (m)
Direction
Period (s)
0.7
WNW
6
0.4
NW
6
0.4
WNW
5
0.2
ENE
12
0.2
ENE
12
0.3
N
6
0.2
ENE
12
1.1
N
7
1.1
SSW
8
1.1
SSW
7
0.4
NE
10
0.2
NNE
7
1.3
SSW
8
0.9
SSW
8
0.7
S
7
0.8
SSW
9
0.8
SSW
8
0.4
SW
8
1
E
7
0.7
ENE
7
0.6
SW
8
Energy kJ
33
11
7
14
14
6
14
124
142
127
35
4
224
117
53
96
75
17
107
54
55
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
6
0.2
ENE
12
0.4
SE
6
0.2
N
5
0.2
N
7
0.2
ENE
12
0.1
N
6
0.2
ENE
12
1
N
6
0.6
N
6
0.3
NNW
5
0.1
NE
8
0.1
NE
10
0.3
SE
6
0.6
SW
8
0.3
SE
6
0.5
SW
8
0.3
SW
8
1
SSW
9
0.8
SSW
9
0.6
E
8
Energy kJ
13
15
9
2
4
14
1
13
81
22
5
2
4
6
54
6
31
9
176
88
44
Swell 3
Height (m)
Direction
Period (s)
0.2
ENE
13
0.2
E
10
0.2
ENE
12
0.1
E
10
0.1
N
5
0.1
E
9
0.1
E
9
0.1
E
9
0.2
ENE
11
0.2
ENE
11
0.1
E
9
0.1
NE
10
0.2
ENE
10
0.1
E
9
0.4
S
7
0.1
SE
6
0.1
E
13
0.3
NNE
4
Energy kJ
17
8
15
2
1
2
2
2
12
12
2
4
10
2
14
2
3
4
Wind waves
Height (m)
Direction
Period (s)
1.6
SW
8
1.5
SW
9
0.9
SW
8
1.5
SW
7
1.1
SW
7
0.9
SSW
6
1.7
SW
7
1.6
SW
7
1.6
SSW
7
1.4
SW
7
2.5
SW
8
1
N
6
1.1
NE
5
1.1
NE
5
0.8
NNE
5
0.8
NE
4
2
ENE
7
1.2
NNE
5
0.7
N
5
Energy kJ
300
334
98
198
114
74
276
269
257
193
753
64
60
60
31
24
330
64
25
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
Distance (km)
849
622
24
73
66
608
677
652
73
650
694
74
0
10
10
650
608
600
27
0
608
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
1
1
1
1
3
2
1
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
4
4
2
2
3
2
2
1
1
1
1
3
2
2
2
2
1
2
2
1
Header Global
Rating
(10 max)
6
6
8
8
7
6
9
9
9
9
9
8
9
7
6
5
8
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Mainside Surf forecast

The above surf forecast table for Mainside provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mainside can be found by selecting the local surf guide option on the grey menu. Our Mainside 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 (Mainside) 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 Mainside 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.

Mainside is 11 km (7 miles) from the city of Ishikawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Ishikawa. Ishikawa has rooms for a wide range of budgets as well as car hire and transport links.

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