Mainside Surf Break

Mainside Surf Forecast and Surf Report

Lat Long: 26.44° N 127.71° E

Issued: 2 am 25 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mainside sea temperature is
26.5° C

1.5°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 24 Jun 2026:

  • Most powerful swell: Friday 26 Jun, 3PM (local time) - 10ft (3.0m), 7s period, WNW swell with 666 kJ wave energy.

Best Forecast Surf Conditions for Mainside this week:

The most powerful waves expected at Mainside in the next 16 days are 3.0m 7s and forecast to arrive on Friday (Jun 26) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 12s period and expected on Friday (Jun 26) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3PM (Fri 26th Jun)10ft (3.0m) 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 98mm), heaviest during Fri morning. Warm (max 29°C on Thu morning, min 26°C on Thu night). Winds decreasing (stormy winds from the SE on Fri morning, light winds from the WSW by Sat afternoon).

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Sun afternoon. Warm (max 28°C on Mon morning, min 26°C on Mon night). Mainly fresh winds.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
ENE
10
0.2
NNE
9
0.2
NNE
8
4
S
12
3
WNW
7
1
N
7
1.5
NNW
8
1.1
NNW
7
0.5
NNE
7
0.5
NNW
6
0.4
NNW
5
0.3
N
6
0.2
N
6
0.2
N
5
0.3
N
5
0.9
SSW
5
0.8
SW
6
0.6
SW
5
0.6
SW
4
0.5
SW
5
0.4
W
5
Wave Graph
Metric surfscale
Energy kJ
9
7
6
0
666
101
257
121
29
17
10
7
3
2
4
33
44
16
16
11
7
Wind (km/h)
30
SSE
35
SE
45
SE
85
SE
70
W
25
WNW
10
WNW
10
SW
20
SSW
30
SSW
15
S
25
S
25
S
25
SSW
15
S
15
S
15
SW
10
SSE
10
S
10
WSW
10
SSE
Wind State
cross-off
cross-off
off
off
on
on
on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross-off
High Tide
5:09PM1.56m
4:13AM1.80m
6:06PM1.63m
4:56AM1.83m
6:49PM1.69m
5:34AM1.86m
7:24PM1.75m
6:08AM1.89m
7:54PM1.79m
6:41AM1.92m
8:21PM1.84m
7:15AM1.96m
8:48PM1.87m
Low Tide
10:29AM0.61m
10:18PM1.13m
11:20AM0.51m
11:15PM1.16m
12:02PM0.43m
00:01AM1.17m
12:38PM0.36m
00:39AM1.16m
1:09PM0.31m
1:12AM1.14m
1:39PM0.27m
1:43AM1.10m
2:08PM0.24m
2:15AM1.06m
clear
clear
rain showers
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:37
5:37
5:37
5:39
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:24
7:24
7:24
7:24
7:24
7:25
7:25
 mm
7
80
1
3
2
1
4
1
3
4
1
1
Temp °C
29
28
27
27
27
27
27
28
27
27
27
27
28
28
27
28
28
27
28
27
27
Feels °C
29
27
26
30
20
27
31
32
31
27
30
29
29
30
30
31
31
32
32
30
32
Swell 1
Height (m)
Direction
Period (s)
2.5
S
14
2.5
SSW
13
0.2
NNE
8
4
S
12
1.7
SSW
10
1
N
7
1.5
NNW
8
1.1
NNW
7
1
SSW
8
1.4
SSW
7
1
SSW
7
0.4
SE
9
0.6
SW
7
0.4
SE
9
0.4
ESE
10
0.4
SE
9
0.4
SE
9
0.4
ESE
8
0.4
SE
8
0.7
WSW
5
0.4
W
5
Energy kJ
2981
2507
6
4909
517
85
257
121
128
192
93
20
38
20
36
20
19
27
17
26
7
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
11
0.2
ESE
11
0.8
SE
8
1
SSW
8
0.9
SSW
10
0.9
SSW
9
0.6
NNW
5
0.5
NNW
6
0.4
NNW
5
0.3
N
6
0.4
SE
9
0.2
N
5
0.3
N
5
0.3
SE
10
0.2
SSE
9
0.2
SSE
9
0.1
SW
8
0.3
ESE
8
0.3
ESE
8
Energy kJ
11
11
82
128
132
119
19
17
10
7
20
2
4
15
8
8
2
13
14
Swell 3
Height (m)
Direction
Period (s)
0.2
ENE
10
0.2
NNE
9
0.1
SE
11
0.3
SE
10
0.6
ESE
11
0.6
SE
10
0.5
NNE
7
0.4
SE
8
0.4
SE
8
0.1
NE
8
0.2
N
6
0.3
SE
5
0.1
SE
5
0.2
N
5
0.1
SW
8
0.2
WSW
8
0.2
N
5
0.3
SE
9
0.3
SW
7
Energy kJ
9
7
5
16
78
79
29
18
17
2
3
4
1
2
3
6
2
13
9
Wind waves
Height (m)
Direction
Period (s)
3.5
S
13
2.4
ESE
8
3
WNW
7
1.1
WNW
6
2
SSW
7
1.2
SSW
7
0.5
S
6
0.8
SSW
7
0.7
SSW
6
0.9
SSW
5
0.8
SW
6
0.6
SW
5
0.6
SW
4
0.5
SW
5
Energy kJ
4441
789
666
101
362
153
16
56
34
33
44
16
16
11
Nearest Offshore or Glassy
Rating
(10 max)
4
2
2
2
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
Distance (km)
677
608
608
608
608
15
15
15
24
608
14
608
650
650
14
14
24
14
29
27
14
Best forecast wave conditions in Okinawa
Rating
(10 max)
1
2
2
1
2
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
3
4
3
3
3
2
4
4
3
2
2
2
1
2
1
2
2
2
2
1
Header Global
Rating
(10 max)
6
5
5
5
6
5
7
6
5
4
5
5
7
7
6
9
6
5
5
5
8
  • 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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