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Jailbreak surfForecast / Sandaun / Papua New Guinea

information circle12 Day Weather and Surf, issued 9 am Sunday 17 Aug 2025 +10
Forecast update in hr  min  s Forecast update imminent
Jailbreak surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jailbreak sea temperature is
29.8° C
 (Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Jailbreak this week:

The surf forecast for Jailbreak over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 18) at 10PM. The primary swell is predicted to be 0.8m and 4s period with a secondary swell of 0.3m and 9s. Another secondary swell of 0.2m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Jailbreak in the next 12 days are 1.3m 8s and forecast to arrive on Thursday (Aug 21) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 8s period and expected on Thursday (Aug 21) at 4PM.

Wave TypeTime (+10) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 18th Aug)2.5ft (0.8m) 4s
Best Surf 1AM (Fri 22nd Aug)4.5ft (1.3m) 8s
Most Powerful10PM (Thu 21st Aug)4.5ft (1.3m) 8s

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

Hourly12 Days
Sandaun Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 

Short Range Forecast Moderate rain (total 10mm), heaviest on Mon night. Warm (max 30°C on Tue morning, min 25°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 69mm), heaviest during Thu morning. Warm (max 29°C on Wed morning, min 24°C on Thu morning). Wind will be generally light.

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
1
0
0
1
0
0
0
1
0
2
1
1
1
1
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
ENE
0.4
ENE
0.4
NE
0.4
NE
0.4
NE
0.8
E
0.3
ENE
0.3
ENE
0.9
E
0.4
NE
0.4
NE
0.4
NE
0.8
ENE
1.4
ENE
1.3
ENE
1.1
ENE
1
ENE
0.9
ENE
0.8
ENE
0.7
ENE
0.6
ENE
Period(s) (?)998885996788888888999
Wave
Graph
(?)Metric surfscale
Energy (?)484546283750192886132625870231164129991058266
Wind
(km/h)
10
ESE
15
ENE
5
SE
10
SE
15
ENE
10
ESE
10
SE
15
ENE
10
ESE
10
ESE
15
ENE
10
SE
10
ESE
15
E
10
ESE
0
S
5
N
0
SSW
5
SE
10
NE
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crosscross-
off		cross-
off		crosscross-
off		cross-
off		cross-
on		cross-
off		cross-
off		cross-
on		cross-
off		cross-
off		crosscross-
off		glassglassglassglasscross-
on		glass
High Tide
/ height (m)
3:03PM
0.87
1:22AM
1.18
4:30PM
0.89
2:18AM
1.18
5:40PM
0.92
3:21AM
1.17
6:34PM
0.95
4:24AM
1.16
7:16PM
0.97
5:25AM
1.15
7:53PM
1.00
6:23AM
1.13
8:24PM
1.02
Low Tide
/ height (m)
7:13PM
0.71
9:07AM
0.10
8:19PM
0.77
10:10AM
0.07
9:33PM
0.80
11:09AM
0.05
10:46PM
0.78
12:02PM
0.05
11:51PM
0.74
12:49PM
0.06
12:48AM
0.68
1:32PM
0.10
1:40AM
0.62
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunrise6:37--6:37--6:37--6:37--6:37--6:35--6:35--
Sunset-6:38--6:38--6:38--6:38--6:38--6:38--6:37-
thunderstorm clearrain showersclearthunderstorm thunderstorm clearclearthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm heavy rainthunderstorm thunderstorm thunderstorm part cloudpart cloudclearthunderstorm
Rain (mm)
2-1-13--322527141621---8
Temp. °C282926292926302926292926252425262825292927
Feels °C (?)313229323129333130303129292728313230323231
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Sandaun

  1. weather stationWind Update Continuing clean conditions at Jailbreak (light winds from the ESE at Jayapura/Sentani Airport 89 km from Jailbreak). 0.2m 7s swell from the NE with a 0.2m 8s swell from the NNW and a 0.1m 11s groundswell from the NE. 3 swells combining to make bigger set waves.

    1 hour 13 minutes ago Jailbreak
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jailbreak 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.

View detailed surf forecast for Jailbreak at:
surf-forecast.com

Information about the Jailbreak Surf forecast

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

Jailbreak is 68 km (42 miles) from the city of Kotabaru. If you plan a holiday in Sandaun, look for hotels and other accommodation in Kotabaru. Kotabaru has rooms for a wide range of budgets as well as car hire and transport links.

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