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Surf Forecasts:

Nichinan surfForecast / Kyu Shu / Japan

information circle16 Day Weather and Surf, issued 8 am Friday 17 Apr 2026 JST
Forecast update in hr  min  s Forecast update imminent
Nichinan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nichinan sea temperature is
20.3° C
 (Which is 1.0°C colder than average for this time of year)

Best Forecast Surf Conditions for Nichinan this week:

The surf forecast for Nichinan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 19) at 9PM. The primary swell is predicted to be 2.3m and 14s period with a secondary swell of 0.5m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nichinan in the next 16 days are 2.3m 16s and forecast to arrive on Saturday (Apr 18) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Apr 24) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 19th Apr)7.5ft (2.3m) 14s
Best Surf 9PM (Sun 19th Apr)7.5ft (2.3m) 14s
Most Powerful 6AM (Sat 18th Apr)7.5ft (2.3m) 16s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 32mm), heaviest during Sun night. Warm (max 21°C on Fri morning, min 16°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Wed night. Warm (max 21°C on Mon morning, min 17°C on Mon night). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
2
3
2
3
2
3
3
2
2
4
3
1
3
1
1
1
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
SE
1.7
SE
2.2
SE
2.3
SE
2.2
SE
2.1
SE
2.1
ESE
2.2
ESE
2.3
ESE
2.1
ESE
2
ESE
1.8
ESE
1.7
E
1.7
E
1.5
E
1.4
E
1.4
E
1.1
E
0.9
E
0.8
E
0.6
E
Period(s) (?)151416161514141414141313121212111211111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14601179246526872255188817721875203515581339110988482760449351929218513878
Wind
(km/h)
25
SE
25
ESE
20
ESE
15
ESE
15
E
15
ENE
20
ENE
15
NE
5
ENE
15
E
15
ESE
5
NE
5
N
10
ENE
0
NW
10
SE
15
SSE
15
SW
20
SW
15
SW
5
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		oncross-
on		cross-
on		crosscrosscrosscrosscross-
on		onglassglasscross-
on		glassoncross-
on		crosscrosscrosscross-
off
High Tide
/ height (m)
6:25PM
1.97
6:12AM
1.94
7:10PM
1.99
6:42AM
1.96
7:56PM
1.94
7:14AM
1.94
8:46PM
1.83
7:50AM
1.87
9:43PM
1.69
8:30AM
1.75
10:52PM
1.56
9:20AM
1.60
12:23AM
1.47
Low Tide
/ height (m)
12:01PM
0.03
12:20AM
0.47
12:38PM
-0.10
12:56AM
0.60
1:17PM
-0.16
1:33AM
0.74
2:00PM
-0.14
2:12AM
0.89
2:48PM
-0.04
2:57AM
1.03
3:43PM
0.11
3:56AM
1.13
4:51PM
0.28
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise5:43--5:43--5:41--5:41--5:39--5:39--5:37--
Sunset-6:43--6:44--6:45--6:45--6:45--6:46--6:47-
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
heavy rain
rain showers
clear
clear
clear
part cloud
clear
clear
cloud
light rain
rain showers
heavy rain
mod rain
part cloud
Rain (mm)
-----221414-------13216-
Temp. °C212019202019201818212119212019212120212120
Feels °C (?)171616181818181718191919211920212120202221
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nichinan 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.

View detailed surf forecast for Nichinan at:
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Information about the Nichinan Surf forecast

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

Nichinan is 4 km (2 miles) from Nichinan. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Nichinan. Nichinan has rooms for a wide range of budgets as well as car hire and transport links.

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