Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts

Sissano Lagoon surfForecast / Sandaun / Papua New Guinea

information circle12 Day Weather and Surf, issued 9 am Friday 15 Aug 2025 +10
Forecast update in hr  min  s Forecast update imminent
Sissano Lagoon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sissano Lagoon sea temperature is
29.8° C
 (Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Sissano Lagoon this week:

The surf forecast for Sissano Lagoon over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 15) at 10PM. The primary swell is predicted to be 0.3m and 10s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.7m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Sissano Lagoon in the next 12 days are 1.2m 8s and forecast to arrive on Thursday (Aug 21) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Wednesday (Aug 20) at 4AM.

Wave TypeTime (+10) & Date Wave Height & Period
Next good surf (1 star+)10PM (Fri 15th Aug)1.5ft (0.4m) 8s
Best Surf10PM (Fri 15th Aug)1.5ft (0.4m) 8s
Most Powerful10PM (Thu 21st Aug)4ft (1.2m) 8s

Table - best surf conditions forecast for Sissano Lagoon 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 14mm), heaviest on Fri morning. Warm (max 29°C on Sun morning, min 24°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 31mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 25°C on Mon night). Wind will be generally light.

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
1
0
1
0
0
1
1
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
ENE
0.4
ENE
0.9
E
0.5
ENE
0.4
ENE
0.4
ENE
0.4
ENE
0.4
ENE
0.8
E
1
E
0.3
ENE
0.4
ENE
0.3
ENE
0.3
ENE
0.1
NE
0.1
NE
0.2
ENE
1
ENE
1.1
NE
0.9
ENE
1
NE
Period(s) (?)995119999558899147116888
Wave
Graph
(?)Metric surfscale
Energy (?)794871998267566167772030212010212106152109125
Wind
(km/h)
5
SE
5
ESE
10
S
5
ESE
15
E
10
SSE
10
ESE
15
ENE
10
SE
5
SE
20
E
10
SE
10
ESE
20
E
15
ESE
10
ESE
20
E
10
SE
10
ENE
10
ENE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crosscross-
off		cross-
off		cross-
on		cross-
off		crosscross-
on		cross-
off		glasscross-
on		cross-
off		crosscross-
on		crosscrosscross-
on		cross-
off		cross-
on		cross-
on		cross
High Tide
/ height (m)
12:39PM
0.97
11:45PM
1.20
2:13PM
0.96
12:27AM
1.19
3:49PM
0.98
1:17AM
1.18
5:10PM
1.02
2:16AM
1.16
6:10PM
1.06
3:21AM
1.15
6:56PM
1.08
4:26AM
1.15
7:33PM
1.10
Low Tide
/ height (m)
5:37PM
0.71
7:12AM
0.27
6:32PM
0.82
8:15AM
0.20
7:42PM
0.89
9:18AM
0.14
9:04PM
0.92
10:19AM
0.11
10:24PM
0.92
11:16AM
0.09
11:30PM
0.89
12:07PM
0.10
12:26AM
0.85
Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Sunrise6:35--6:35--6:35--6:35--6:33--6:33--6:33--
Sunset-6:36--6:36--6:36--6:36--6:36--6:35--6:35-
thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm clearclearclearrain showersclearclearthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm thunderstorm
Rain (mm)
31322---3--311134185536
Temp. °C272726282826292927292927292927292927272726
Feels °C (?)303029292929313130313030303130303130313029
  • 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 The wind is still offshore at Sissano Lagoon (light winds from the S at ASCATB145E2S 321 km from Sissano Lagoon). 0.1m 7s swell from the N to make surfable waves.

    2 hours 54 minutes ago Sissano Lagoon
Expand
<
>
View all

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 Sissano Lagoon 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 Sissano Lagoon at:
surf-forecast.com

Information about the Sissano Lagoon Surf forecast

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

Sissano Lagoon is 161 km (100 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.

Nearest
Nearest
Nearest