Tunnels Surf Break

Lat Long: 21.15° N 157.29° W

Tunnels Surf Forecast and Surf Report

Issued: 1 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tunnels sea temperature is
26.7°C
0.0° 

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


Tunnels surf forecast from 22 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 2.3m 7s period and expected on Sunday (Aug 23) 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, let’s get into it. The forecast is built around one spot, Tunnels. There’s a bit of a slow start, and honestly, most of the 16-day window looks pretty ordinary. We’ve got some swell building later on, but it’s fighting against persistent cross-off winds. Let’s break it down.

The water at Tunnels is sitting at a very warm 80°, which is spot on for this time of year – nothing unusual there.

The first sniff of anything worthwhile shows up on Friday, August 21st afternoon. There’s a small, clean 2ft SW groundswell rolling in with a long 16-second period. The wave energy is moderate, clocking in at 252. It’s small, but that long period and clean conditions make it a decent little session for intermediates, though it’s a Friday so expect the crowds to be around.

Everything after that turns to poor surf conditions for a long stretch. From Saturday the 22nd right through to the end of the month, the wind stays a stiff cross-off from the ENE, mostly 19-22 mph. The swell hangs around 2ft to 2ft, mostly from the SSW. It stays clean, but it’s just not enough to get excited about. There’s a slight pulse of energy mid-week around August 26th, but it’s still rated poor.

Things get a bit more interesting around Thursday, August 27th morning. The swell picks up to 4ft from the S, with a 17-second period. The combined wave energy jumps to 871 – that’s moderate to strong. The wind is still cross-off ENE at 16 mph, so it’s clean. This is probably the best wave size on offer, but the conditions are still “marginal” at best. For a confident intermediate, there’s something to work with, but it’s not a standout.

The same pattern continues through early September. On Tuesday, September 1st afternoon, we get another S swell at 3ft with an 18-second period and energy at 500. Still that cross-off wind. Then on Thursday, September 3rd, the wind finally eases back. Thursday morning shows a light S breeze at 12 mph with a 3ft S swell, but Thursday afternoon gets interesting: a light SSW breeze at 6 mph, almost glassy cross-shore. The swell is still 3ft from the S with a 14-second period, and the energy is 306. That afternoon window looks like the cleanest, most user-friendly conditions in the whole run, and it lands on a Thursday for lighter crowds.

The standout: Thursday, September 3rd afternoon at Tunnels.
Swell: 3ft from the S. Wind: light cross-shore at 6 mph. Clean glassy conditions. The wave energy is moderate at 306. It’s not tall, but it’s the best combo of size, clean face, and lighter crowd potential. It’s the pick of the bunch.

Friday, September 4th morning also looks surfable but very ordinary – 2ft S swell with a light ENE breeze, but energy is low at 181.

After that, Saturday September 5th afternoon sees a pulse of 2ft SSW swell with a very long 17-second period and energy climbing to 346, but the wind is back up to a fresh 19 mph cross-off. Gives it power, but the wind will chop it up.

Overall, there’s a long gap of poor surf from August 22nd through to about August 26th, then a few marginal windows. The single real highlight is that Thursday September 3rd afternoon light-wind session. Keep your eyes on the forecasts for that one, it’s promising.

- Rusty

Short Range Forecast

Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Sat night). Winds increasing (light winds from the NNE on Fri afternoon, strong winds from the ENE by Sun afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Mon afternoon, min 25°C on Tue night). Mainly fresh winds.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
16
0.8
SSW
16
0.7
SW
16
0.7
SW
16
0.6
SSW
15
0.6
SSW
15
0.5
SW
14
0.5
SW
14
0.7
SSW
14
0.7
SSW
13
0.6
SSW
13
0.5
SSW
16
0.6
SSW
16
0.5
S
18
0.7
SSW
14
0.8
S
18
0.8
S
19
1.2
S
17
1
S
16
1.1
S
16
Wave Graph
Metric surfscale
Energy kJ
201
322
261
255
152
146
102
100
166
156
127
146
196
165
218
399
453
861
508
590
Wind (km/h)
25
ENE
20
ENE
30
ENE
35
ENE
30
ENE
40
ENE
40
ENE
30
ENE
35
ENE
30
ENE
25
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
25
ENE
30
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
12:53PM0.66m
11:49PM0.25m
1:28PM0.69m
00:44AM0.28m
1:58PM0.72m
1:24AM0.32m
2:25PM0.73m
2:01AM0.36m
2:50PM0.73m
2:37AM0.40m
3:13PM0.72m
3:15AM0.45m
Low Tide
4:10AM0.16m
9:14PM0.24m
5:23AM0.13m
9:06PM0.23m
6:15AM0.10m
9:12PM0.21m
6:59AM0.09m
9:23PM0.20m
7:38AM0.08m
9:36PM0.18m
8:17AM0.09m
9:52PM0.16m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:52
6:52
6:51
6:50
6:49
 mm
Temp °C
28
27
26
27
26
25
26
26
26
27
26
26
27
26
25
26
25
26
26
25
Feels °C
29
27
26
25
24
22
23
24
26
25
26
25
25
25
22
23
22
25
24
22
  • 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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