Surf Forecast Surf Report
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Number Fours location map

Number Fours surf Forecast / HAW – Oahu / USA

12 Day Weather and Surf, issued 7 am Thursday 18 Apr 2024 HST
Forecast update in  hr  min  s Update imminent
Number Fours surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Fours sea temperature is 24.5°C (Statistics for 18 Apr 1981-2005 - mean: 24.5 °C max: 25.3 °C min: 23.5 °C)
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
Number Fours surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Fours sea temperature is 24.5°C (Statistics for 18 Apr 1981-2005 - mean: 24.5 °C max: 25.3 °C min: 23.5 °C)


Best Forecast Surf Conditions for Number Fours this week:

The surf forecast for Number Fours over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 18) at 11AM. The primary swell is predicted to be 0.8m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Number Fours in the next 12 days are 2.4m 8s and forecast to arrive on Thursday (Apr 25) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Friday (Apr 19) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Thu 18th Apr)2.5ft (0.8m) 16s
Best Surf11AM (Thu 18th Apr)2.5ft (0.8m) 16s
Most Powerful 5AM (Thu 25th Apr)8ft (2.4m) 8s

Table - best surf conditions forecast for Number Fours over the next 12 days.

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Quick surf report for Number Fours:

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Updates in  hr  min  s Update imminent
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
SSW
0.8
SSW
0.7
SW
0.7
SSW
0.7
SSW
0.7
SSW
1.5
ENE
0.6
SSW
0.6
SSW
0.6
SSW
0.5
SW
1.7
ENE
1.7
ENE
1.6
ENE
0.6
SSW
0.6
SSW
1.4
ENE
1.7
ENE
1.9
ENE
1.8
ENE
2.1
E
2.2
E
1.7
ENE
1.6
E
1.6
ENE
1.6
ENE
1.8
E
1.5
E
1.3
ENE
1.7
E
1.6
ENE
1.5
ENE
1.6
ENE
1.6
ENE
1.6
ENE
1.6
E
Period(s) (?)161616151515614161615676171667777888888887887777
Wave
Graph
(?)Metric surfscale
Energy (?)326322251199193193167140162164113237249203212181165247362355478558355308324302428309235270266240212232233240
Wind
(km/h)
20
ENE
30
NE
30
NE
35
ENE
30
ENE
25
ENE
25
ENE
20
ENE
20
NE
25
NE
25
NE
30
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
40
ENE
45
ENE
40
ENE
30
E
40
ENE
30
E
35
ENE
35
ENE
30
ENE
30
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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
crosscross-
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
/ height (m)
1:47PM
0.28
1:22AM
0.44
2:15PM
0.34
1:54AM
0.41
2:42PM
0.40
2:24AM
0.37
3:11PM
0.45
2:52AM
0.33
3:41PM
0.50
3:20AM
0.29
4:13PM
0.54
3:50AM
0.24
4:49PM
0.56
4:20AM
0.20
5:27PM
0.58
4:53AM
0.16
6:11PM
0.58
5:32AM
0.12
7:02PM
0.58
6:31AM
0.09
8:01PM
0.57
8:18AM
0.07
9:04PM
0.56
Low Tide
/ height (m)
7:01PM
0.09
8:05AM
-0.01
7:52PM
0.07
8:20AM
-0.02
8:39PM
0.06
8:37AM
-0.03
9:24PM
0.05
8:55AM
-0.05
10:08PM
0.05
9:14AM
-0.05
10:55PM
0.05
9:36AM
-0.06
11:46PM
0.06
10:00AM
-0.06
12:44AM
0.07
10:27AM
-0.05
1:55AM
0.07
10:58AM
-0.04
3:20AM
0.06
11:35AM
-0.01
4:38AM
0.04
12:28PM
0.02
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Sunrise6:09--6:07--6:07--6:05--6:05--6:05--6:03--6:03--6:03--6:01--6:01--6:01--
Sunset-6:52--6:52--6:52--6:52--6:52--6:52--6:53--6:53--6:53--6:54--6:54--6:55-
clearclearpart cloudpart cloudpart cloudrain showerspart cloudpart cloudclearpart cloudpart cloudpart cloudpart cloudclearclearpart cloudclearclearrain showersclearclearclearclearpart cloudpart cloudpart cloudpart cloudclearclearclearpart cloudclearpart cloudpart cloudpart cloudpart cloud
Rain (mm)
-----1------------1-----------------
Temp. °C232422232322222323222322232322232322232323232423232423242423232423232423
Feels °C (?)222219191918202122212119191918181817181818191918212018212019192019192019

Short Range Forecast: Some drizzle, heaviest during Fri night. Warm (max 24°C on Thu afternoon, min 21°C on Sat morning). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sun afternoon, min 22°C on Sun morning). Mainly strong winds.

Days 6-9 Weather Summary Some drizzle, heaviest during Wed morning. Warm (max 24°C on Thu afternoon, min 22°C on Wed morning). Mainly strong winds.

Long Range Forecast: Mostly dry. Warm (max 24°C on Sat morning, min 23°C on Sat morning). Mainly strong winds.

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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 Number Fours 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.


Information about the Number Fours Surf forecast

The above surf forecast table for Number Fours provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Number Fours can be found by selecting the local surf guide option on the grey menu. Our Number Fours 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 (Number Fours) 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 Number Fours 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.

Number Fours is 5 km (3 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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