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Mainside ratings
Quality on a good day: 2.0
Consistency of Surf: 4.0
Difficulty Level: 4.0
Crowds: 3.0

Overall: 3.2

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Based on 1 vote. Vote


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Mainside Surf Forecast / Okinawa / Japan

12 Day Weather and Surf, issued 2 pm Tuesday 03 Aug 2021 JST
Forecast update in  hr  min  s Update imminent
Mainside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mainside sea temperature is 28.5 °C (Statistics for 03 Aug 1981-2005 - mean: 28.9 max: 30.5 min: 27.2 °C)
Icon breakBreak
Icon legend buoysLive Wave Height (m)
Icon legend windLive Wind Speed (km/h)
Mainside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mainside sea temperature is 28.5 °C (Statistics for 03 Aug 1981-2005 - mean: 28.9 max: 30.5 min: 27.2 °C)

Eyeball surf reportRecent Eyeball Surf Reports for Okinawa

  1. weather stationWind Update The wind is still offshore at Mainside (moderate winds from the ESE at Kadena Air Force Base Airport 11 km from Mainside).

    Mainside
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1 h 21 min ago

Moderate
26 km/h
ESE
Offshore
Please reload the page to see if there are any updates.


Best Forecast Surf Conditions for Mainside this week:

The surf forecast for Mainside over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 06) at 6PM. The primary swell is predicted to be 1.7m and 8s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Mainside in the next 12 days are 2.5m 8s and forecast to arrive on Friday (Aug 06) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (Aug 04) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Fri 6th Aug)5.5ft (1.7m) 8s
Best Surf 6PM (Fri 6th Aug)5.5ft (1.7m) 8s
Most Powerful 9AM (Fri 6th Aug)8ft (2.5m) 8s

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

Updates in  hr  min  s Update imminent
Rating
(10 max)
Swell
Height Map
Wave Height (m) & direction (?)
Period(s) (?)
Wave
Graph
(?)Metric surfscale
Energy (?)
Wind
(km/h)
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
High Tide
/ height (m)
Low Tide
/ height (m)
Summary
Rain (mm)
High °C
Low °C
Chill °C (?)
Sunrise
Sunset
Tue
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sun
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
000000000000000000000000000000000001
T japan.htsgw.metric.12.cc23
T japan.htsgw.metric.30.cc23
T japan.htsgw.metric.54.cc23
T japan.htsgw.metric.78.cc23
T japan.htsgw.metric.102.cc23
T japan.htsgw.metric.126.cc23
T japan.htsgw.metric.150.cc23
T japan.htsgw.metric.174.cc23
T japan.htsgw.metric.198.cc23
T japan.htsgw.metric.222.cc23
T japan.htsgw.metric.246.cc23
T japan.htsgw.metric.270.cc23
T japan.htsgw.metric.294.cc23
0.1
W
1.3
S
2.5
SE
1.7
SSW
1.8
SSW
0.8
ENE
1.1
NE
1.8
NNE
2.5
N
1.8
N
1
NNE
1
NNW
0.9
NW
0.7
NNW
0.5
NNW
0.5
N
0.4
N
0.2
N
0.2
W
0.1
E
0.1
E
1
W
0.3
W
1.1
W
0.8
W
0.8
W
0.8
W
0.7
W
0.6
W
0.9
W
1.6
W
1.2
W
0.7
W
0.6
W
0.7
W
1.1
W
699101088888885555561010871088677778878810
100007714045776744813414039241715938238917138725261503782299177544969262
40
ESE
35
ESE
45
ESE
40
ESE
40
E
30
NE
40
NNE
35
NNW
30
NW
25
NW
20
WNW
20
NW
15
W
5
WSW
15
SE
10
W
10
N
25
SSW
30
SW
30
SW
30
SW
20
SW
30
SW
25
SW
25
SSW
25
WSW
20
WSW
30
SW
20
SW
25
SSW
25
SSW
25
S
25
SSW
25
SSW
25
S
20
SSW
offoffoffoffoffcross-
off
crosscross-
on
cross-
on
ononononcross-
on
cross-
off
cross-
on
cross-
on
crosscrosscrosscross-
on
cross-
on
crosscross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
off
crosscross-
off
crosscrosscross-
off
cross
4:46PM
1.50
3:23AM
1.72
5:49PM
1.61
4:25AM
1.76
6:29PM
1.73
5:15AM
1.84
7:01PM
1.84
5:59AM
1.93
7:30PM
1.93
6:39AM
2.03
7:58PM
2.00
7:17AM
2.11
8:27PM
2.06
7:57AM
2.17
8:56PM
2.09
8:37AM
2.19
9:27PM
2.09
9:19AM
2.16
10:00PM
2.07
10:05AM
2.08
10:35PM
2.03
10:57AM
1.94
11:15PM
1.97
12:00PM
1.78
9:27PM
1.29
10:48AM
0.70
10:51PM
1.28
11:36AM
0.58
11:47PM
1.22
12:15PM
0.45
12:28AM
1.15
12:50PM
0.34
1:03AM
1.06
1:24PM
0.26
1:36AM
0.96
1:58PM
0.21
2:09AM
0.86
2:33PM
0.21
2:45AM
0.76
3:08PM
0.27
3:22AM
0.69
3:44PM
0.38
4:03AM
0.64
4:23PM
0.53
4:49AM
0.63
5:05PM
0.72
5:45AM
0.64

Note: the tide data above is for Toya, Okinawa, Japan which is 7 km away. Surf properties and timing are calculated for Mainside.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph
Offshore winds at Mainside blow from the ESE

Tue
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sun
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm clearthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm clearthunderstorm thunderstorm clearthunderstorm thunderstorm clear
risk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derclearrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- dermod. rainrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- dermod. rainrisk thund- derrisk thund- derrisk thund- derrisk thund- derrisk thund- derclearrisk thund- derrisk thund- derclearrisk thund- derrisk thund- derclear
271341536423-31132743111398142425-11-21-
282728272727282828282829292829292827282828262827262728272729292728282728
272728272727272728282828282728282727282827262726252727262728282728282727
282728272727282828282829292829292827282828262827262728272729292728282728
--5:54--5:56--5:56--5:56--5:56--5:58--5:58--5:58--5:58--5:58--6:00--6:00
7:15--7:14--7:14--7:13--7:12--7:10--7:10--7:09--7:08--7:07--7:07--7:07--

Short Range Forecast: Heavy rain (total 45mm), heaviest during Thu morning. Warm (max 28°C on Tue afternoon, min 27°C on Tue afternoon). Winds decreasing (strong winds from the E on Wed morning, moderate winds from the NNW by Fri morning).

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Mon morning. Warm (max 29°C on Sat morning, min 27°C on Sat night). Wind will be generally light.

Days 6-9 Weather Summary Heavy rain (total 68mm), heaviest during Wed afternoon. Warm (max 28°C on Mon afternoon, min 25°C on Wed afternoon). Mainly fresh winds.

Long Range Forecast: Moderate rain (total 12mm), heaviest on Thu night. Warm (max 29°C on Fri morning, min 26°C on Thu afternoon). Wind will be generally light.

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 Mainside 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 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 12 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.