Tunnels Surf Break

Lat Long: 21.15° N 157.29° W

Tunnels Surf Forecast and Surf Report

Issued: 1 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Tunnels sea temperature is
27.4°C
0.4° 

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


Tunnels surf forecast from 15 Sep 2026:

  • Most powerful swell: Friday 18 Sep, 2AM (local time) - 3.5ft (1.0m), 18s period, SSW swell with 644 kJ wave energy.

Best Forecast Surf Conditions for Tunnels this week:

The most powerful waves expected at Tunnels in the next 16 days are 1.0m 18s and forecast to arrive on Friday (Sep 18) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Sunday (Sep 20) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Fri 18th Sep)3.5ft (1.0m) 18s

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


The Lowdown

Alright, Rusty here. Let’s chew through this forecast.

Right off the bat, the first few days are small and wind-affected – nothing to get too worked up about. The real drawcard comes later, so be patient.

Tuesday 15th September kicks off with clean but small waves at Tunnels. Swell is 2ft from the SW, running on a 20-second period – that’s a long-period groundswell, perfect for a point break. Water temp is 81°, spot on for this time of year. Combined energy is 392 (moderate). It’s a longboard kind of day – surfable, but nothing special.

From Wednesday 16th right through to Tuesday 22nd, it’s a grind. Swell stays between 2ft and 3ft, but the wind cranks up to 15–22 mph from the ENE, cross-off. Period drops under 15 seconds, and the waves lose shape and power. Afternoon windows occasionally look a bit better, but most sessions are rated poor to marginal. That’s a solid week of ordinary surf.

Wednesday 23rd September brings a shift. Morning shows offshore wind from the east at 16 mph, with 2ft SW swell, period 17 seconds. Combined energy is 266 (weak to moderate). It’s tiny, but with a clean offshore breeze and that longer period, it’ll be glassy and fun for a log. The forecast says “expect good surf conditions” – a nice little window.

But the real standout is Saturday 26th September. Both morning and afternoon are looking primo. Swell hits 3ft from the SSW, period 16 seconds, with gentle offshore winds from the ESE at only 9 mph – glassy, clean conditions. Combined energy ramps to 585 for the morning and 519 in the afternoon (strong to moderate). This is the best session of the forecast. Tunnels will be clean and punchy. Just know that crowds can be heavy here, so plan accordingly.

Sunday 27th afternoon offers another decent shot with moderate offshore wind and similar swell. Then Tuesday 29th afternoon shows light east breeze and 3ft SSW swell – another clean, fun session to close out the month.

Bottom line: skip the first week’s mediocrity. Hit Wednesday 23rd for a small clean one, and make sure you’re in the water on Saturday 26th – that’s your day.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 27°C on Tue morning, min 26°C on Tue morning). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Fri morning, min 25°C on Sun night). Mainly fresh winds.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
0
1
1
0
1
1
1
1
1
1
1
1
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)
0.7
SW
20
0.7
SW
19
0.8
SSW
19
0.9
SW
18
0.9
SSW
18
0.9
SSW
17
0.9
SW
16
0.9
SSW
16
1
SSW
18
1
SSW
17
0.9
SSW
17
0.9
SW
16
0.8
SSW
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
15
0.9
SSW
15
0.9
SSW
14
0.9
SSW
14
0.8
SSW
13
0.7
S
13
Wave Graph
Metric surfscale
Energy kJ
392
384
470
455
541
516
371
452
644
615
504
367
318
387
350
296
370
346
322
236
168
Wind (km/h)
20
ENE
25
ENE
25
ENE
30
ENE
30
NE
30
NE
30
ENE
30
ENE
30
ENE
30
E
35
ENE
30
E
25
ENE
30
ENE
30
E
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
40
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:11PM0.38m
7:05AM0.59m
8:24AM0.57m
10:03AM0.58m
11:17AM0.60m
11:12PM0.23m
12:05PM0.63m
00:11AM0.27m
12:40PM0.65m
00:47AM0.33m
Low Tide
12:46PM0.35m
11:01PM0.12m
11:24PM0.14m
11:54PM0.16m
1:01AM0.19m
8:42PM0.23m
8:04PM0.22m
8:01PM0.20m
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
6:29
6:28
6:27
6:25
 mm
1
2
Temp °C
27
27
26
27
27
26
27
27
26
27
27
26
26
27
26
26
26
26
26
26
26
Feels °C
29
28
26
27
26
25
27
28
26
26
24
25
25
25
25
24
23
25
25
24
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the Tunnels Surf forecast

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

Are you planning a vacation in Molokai? If you are looking for accommodation near Tunnels, camping, hotels and condos and appartments in Molokai, consider staying in Kaunakakai - Molokai which is 20 km (12 miles) away. Other places in and around Molokai where you can find information about places to rent, and car hire include Lanai - Lanai which is 53 km (33 miles) away, Kailua, Honolulu and Kane'ohe.

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