Tennis Courts Surf Break

Lat Long: 21.29° N 157.86° W

Tennis Courts Surf Forecast and Surf Report

Issued: 7 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tennis Courts sea temperature is
27.0° C
0.2° 

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


Tennis Courts surf forecast from 18 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 2AM (local time) - 1.5ft (0.5m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 2AM (local time) - 8ft (2.4m), 8s period, ENE swell with 678 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 1.5ft (0.5m), 16s period with SW swell.

Best Forecast Surf Conditions for Tennis Courts this week:

The surf forecast for Tennis Courts over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2AM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.9m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Tennis Courts in the next 16 days are 2.4m 8s and forecast to arrive on Tuesday (Aug 25) 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 1.0m 7s period and expected on Thursday (Aug 20) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 20th Aug)1.5ft (0.5m) 16s
Best Surf 2AM (Thu 20th Aug)1.5ft (0.5m) 16s
Most Powerful 2AM (Tue 25th Aug)8ft (2.4m) 8s

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


The Lowdown

Alright, Rusty here. Let’s talk about what’s on the menu for the next couple weeks.

It’s a quiet start at Tennis Courts. For the first few days, we’ve got small, knee-to-waist high swell, mostly under 3 ft, with the wind sitting cross-off. That wind is keeping the surface tidy, but honestly, the surf just isn’t doing much. Thursday afternoon sees the wind drop right back to almost nothing, a slight air, and the energy is moderate (355). That’s the first window that looks worth a paddle—clean, glassy potential, even if the swell stays modest at 2 ft from the SSW with a long 17 second period. That long period will help the shape on this reef, so it could be fun for an advanced surfer on a log or a fish.

Friday afternoon offers something similar: glassy conditions again, with 2 ft of SSW swell at 16 seconds, and the energy holding steady (357). That’s the pick of the early week. Nice and clean, low key.

Then things go a bit sideways. From Saturday the 22nd onward, the wind cranks up from the ENE—fresh to strong breezes, 22–25 mph. The swell builds, but it gets messy. Saturday’s 2 ft gets blown out, and by Sunday the 23rd, we’re looking at 8 ft of short-period E swell (7 seconds) with strong wind. That’s a choppy, blown-out mess, and the energy’s high (860) but not for surfers. This setup looks more interesting for kite surfing than paddle surfing.

That rough spell drags on through to around Thursday the 27th. The swell stays between 6 ft and 7 ft, mostly from the ENE, with short periods and persistent cross-off winds. It’s not good for the lineup. Even when the swell pushes up toward 8 ft on the 29th and 30th, the period is still short, and the wind is moderate to fresh. That’s big and ugly.

Late in the run, around Monday the 31st and into September, there’s a shift. The swell direction swings back to S and SSE, with longer periods (12 seconds) and energy readings well into four digits (2117). The size is solid—over 7 ft—but the wind stays stiff from the ENE. That’s still a cross-off, but with that kind of energy and a long period, this reef could hold up for the experienced crew. Tuesday the 1st of September afternoon shows a slight drop in wind (12 mph from the NE) and the swell easing to 6 ft from the ENE at 9 seconds, with moderate energy (1131). That’s a more manageable option for the confident surfer.

The standout is Friday afternoon the 21st: glassy, 2 ft from the SW at 16 seconds. Small but clean, and the reef should give you a nice little wall. Best of the whole outlook.

Honorable mention goes to Thursday afternoon the 20th—almost no wind, tiny but long period swell, perfect for a sunset cruise.

If you’re an expert, keep an eye on the last few days of August and the start of September. The size and energy are there, but the wind needs to cooperate. It’s promising, but less certain that far out.

Stay safe, keep your eyes on the horizon.

Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 24°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Fri morning). Winds increasing (calm on Fri afternoon, strong winds from the ENE by Sun morning).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
1
1
2
1
2
2
1
2
1
0
0
1
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
ENE
7
1
E
8
1.2
ENE
8
0.5
SW
16
0.8
E
8
0.5
SW
16
0.6
SSW
18
0.6
SSW
17
0.7
SW
16
0.7
SW
17
0.7
SW
16
0.8
SSW
16
0.7
SW
16
0.7
SW
16
2.1
E
7
2.3
E
7
2.1
E
7
2
ENE
7
2.2
ENE
7
2.1
ENE
7
2.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
165
120
155
129
100
129
207
200
274
291
261
322
261
255
428
569
439
350
435
456
678
Wind (km/h)
25
ENE
25
ENE
20
ENE
20
ENE
25
ENE
15
NE
15
ENE
10
NE
5
E
10
SE
5
E
15
ENE
35
ENE
40
ENE
30
ENE
40
ENE
40
ENE
35
NE
40
ENE
35
ENE
35
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
8:59AM0.51m
7:16PM0.30m
10:13AM0.53m
11:25AM0.56m
10:11PM0.21m
12:25PM0.59m
00:08AM0.21m
1:12PM0.63m
1:06AM0.23m
1:52PM0.66m
1:46AM0.26m
2:26PM0.67m
2:21AM0.29m
Low Tide
3:56PM0.27m
2:01AM0.10m
2:47AM0.12m
8:27PM0.20m
8:41PM0.17m
5:06AM0.12m
9:00PM0.16m
6:08AM0.10m
9:18PM0.14m
6:59AM0.08m
9:35PM0.13m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
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>
6:59
6:58
6:57
6:57
6:55
6:54
6:53
 mm
Temp °C
26
26
25
26
26
25
27
27
26
26
27
26
27
27
26
26
26
25
26
26
25
Feels °C
24
23
24
26
25
26
29
29
29
29
30
29
25
25
25
23
23
23
23
24
23
  • 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 Tennis Courts Surf forecast

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

Tennis Courts is 4 km (2 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.

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