Tunnels Surf Break

Lat Long: 21.15° N 157.29° W

Tunnels Surf Forecast and Surf Report

Issued: 1 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tunnels sea temperature is
27.2°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 27 Aug 2026:

  • Most powerful swell: Thursday 27 Aug, 11AM (local time) - 4ft (1.2m), 17s period, S swell with 861 kJ wave energy.

Best Forecast Surf Conditions for Tunnels this week:

The most powerful waves expected at Tunnels in the next 16 days are 1.2m 17s and forecast to arrive on Thursday (Aug 27) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Saturday (Aug 29) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Thu 27th Aug)4ft (1.2m) 17s

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


The Lowdown

Alright, Rusty here. Let’s break it down.

For the next little while, Tunnels is looking pretty flat and messy. We’ve got a long stretch of nothing much to get excited about from Wednesday the 26th of August all the way through to the end of the month. The swell is tiny, the wind is a fresh cross-off from the ENE at 19 mph, and the wave energy is weak. The water’s sitting at 81°, which is about average for this time of year, so nothing weird there.

The first real glimmer of hope doesn’t show up until Tuesday the 1st of September. Even then, it’s marginal – a 3 ft south-southwest swell with a very long 18-second period, moderate wave energy (469), and a moderate breeze. It’s clean, but nothing to write home about. The rest of that first week of September stays pretty ordinary, with small swells and fresh winds keeping the quality down.

But hold onto your board, because things start to look up from Saturday the 5th of September. Early Saturday morning, we get a 2 ft south swell, 13-second period, light offshore wind from the east at 3 mph, and clean conditions. The energy is still low (203), but the setup is right. Then Sunday the 6th of September is where it starts to get interesting: morning brings a 3 ft south-southwest swell with a 17-second period, light offshore wind from the southeast, and clean conditions. By Sunday afternoon, the wind goes glassy, the swell holds at 3 ft, and the energy picks up to 404. That’s the kind of afternoon you want to be in the water.

The standout of the whole run, though, is Monday the 7th of September. Both the morning and afternoon sessions are looking damn good. Morning has a 3 ft south-southwest swell, 15-second period, glassy conditions with a light northeast breeze, and strong wave energy (507). Afternoon bumps up to 4 ft, same direction, 15-second period, clean with a light cross-off breeze, and energy at 580. This is the best on offer – clean, glassy, and a solid south-southwest groundswell. Tunnels (Kauai) is going to be firing. That long-period swell is best for a reef setup like this, so expect well-shaped, punchy waves with nice gaps between sets.

After that, it fades again. Tuesday the 8th of September drops back to marginal, and from Wednesday the 9th it’s back to poor surf with fresh ENE winds.

So, the one to circle is Monday the 7th of September. Get on it if you can.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 25°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 25°C on Sat night). Mainly fresh winds.

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
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)
0.8
S
18
0.8
S
19
1.2
S
17
1
S
16
1.1
S
16
0.9
S
14
1
S
14
0.8
S
13
0.6
S
13
0.4
SSW
17
0.6
SSW
17
0.7
SSW
16
0.5
SW
15
0.7
SSW
15
0.5
SW
15
0.6
SSW
14
0.5
S
19
0.8
SSW
18
0.7
S
18
0.8
S
17
Wave Graph
Metric surfscale
Energy kJ
399
448
861
508
582
333
405
229
121
113
188
226
113
199
108
129
190
422
311
351
Wind (km/h)
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
NE
25
ENE
25
ENE
30
ENE
30
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
High Tide
2:50PM0.73m
2:37AM0.40m
3:13PM0.72m
3:15AM0.45m
3:36PM0.68m
3:54AM0.50m
3:57PM0.63m
4:37AM0.54m
4:17PM0.57m
5:24AM0.57m
4:35PM0.51m
6:19AM0.59m
4:45PM0.44m
Low Tide
9:36PM0.18m
8:17AM0.09m
9:52PM0.16m
8:56AM0.12m
10:08PM0.14m
9:37AM0.16m
10:26PM0.12m
10:21AM0.22m
10:47PM0.11m
11:13AM0.28m
11:10PM0.09m
12:20PM0.34m
11:38PM0.09m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:49
6:47
6:47
6:46
6:45
6:45
 mm
Temp °C
26
25
26
26
25
26
26
25
26
26
25
26
26
26
26
26
26
26
27
26
Feels °C
23
22
24
24
23
24
24
22
24
24
23
24
24
25
25
25
27
26
27
25
  • Map Icons:
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  • 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 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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