- Forecast
- Maps
- Live
- Weather State
- Spot Information
Mandiri Surf Forecast
/ Sumatra – Mainland (12 surf breaks) /
Surf Forecasts:
Mandiri surfForecast / Sumatra – Mainland / Indonesia
16 Day Weather and Surf, issued 12 pm Thursday 21 May 2026 WIBForecast update in hr min s Forecast update imminent
Mandiri surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mandiri sea temperature is
29.9° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Mandiri this week:
The surf forecast for Mandiri over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 10PM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.2m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mandiri in the next 16 days are 2.1m 17s and forecast to arrive on Thursday (May 28) at 1AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 21st May) | 5ft (1.5m) 16s |
| Best Surf | 10PM (Thu 21st May) | 5ft (1.5m) 16s |
| Most Powerful | 1AM (Thu 28th May) | 7ft (2.1m) 17s |
Table - best surf conditions forecast for Mandiri over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Thu morning. Warm (max 29°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 29°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 15 | SW 15 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 18 | SW 17 | |
696 | 580 | 1126 | 757 | 1045 | 1088 | 765 | 799 | 525 | 336 | 336 | 212 | 114 | 149 | 854 | 748 | 917 | 795 | 667 | 1030 | 2465 | |
Wind (km/h) | |||||||||||||||||||||
glassy | cross-on | off | cross-on | cross-on | glassy | cross-on | on | cross-off | cross-on | cross-on | off | glassy | on | off | glassy | cross-on | off | glassy | glassy | off | |
High Tide | 10:43PM0.71m | 10:38AM1.13m | 11:46PM0.73m | 11:34AM1.01m | 00:55AM0.77m | 12:38PM0.89m | 2:05AM0.83m | 1:50PM0.78m | 3:07AM0.91m | 3:06PM0.71m | 3:59AM0.98m | 4:15PM0.68m | |||||||||
Low Tide | 4:46PM0.07m | 3:53AM0.28m | 5:38PM0.14m | 4:59AM0.37m | 6:32PM0.20m | 6:25AM0.44m | 7:27PM0.25m | 8:12AM0.46m | 8:21PM0.29m | 9:47AM0.41m | 9:10PM0.31m | 10:56AM0.34m | 9:54PM0.32m | ||||||||
 | |  |  | | |  | |  | | | | | |  | | | | | | | |
 | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — |
4 | 3 | 6 | — | 1 | 2 | — | — | — | — | 3 | 3 | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 28 | 26 | 29 | 28 | 25 |
34 | 33 | 30 | 33 | 33 | 30 | 32 | 32 | 30 | 33 | 33 | 31 | 32 | 32 | 29 | 32 | 31 | 30 | 33 | 32 | 28 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | S 8 | SW 12 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 18 | SW 17 |
 kJ | 696 | 580 | 1126 | 757 | 1045 | 1088 | 765 | 799 | 525 | 336 | 336 | 212 | 51 | 149 | 854 | 748 | 917 | 795 | 667 | 1030 | 2465 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | W 7 | S 9 | W 7 | W 7 | W 6 | WSW 6 | W 5 | S 8 | S 8 | S 8 | SW 12 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SW 19 | SW 14 | SSE 8 |
| kJ | 198 | 143 | 4 | 76 | 1 | 4 | 3 | 11 | 9 | 33 | 47 | 46 | 114 | 50 | 53 | 54 | 55 | 39 | 446 | 500 | 26 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 8 | S 12 | W 7 | S 13 | SE 8 | W 10 | W 10 | S 11 | WNW 8 | WNW 8 | WNW 8 | SSW 14 | SW 16 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | SSE 8 | SSE 8 | WNW 8 |
| kJ | 6 | 6 | 3 | 4 | 3 | 3 | 2 | 2 | 2 | 11 | 13 | 13 | 113 | 125 | 15 | 16 | 27 | 26 | 38 | 27 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 9 | 0 | 40 | 348 | 0 | 198 | 20 | 0 | 56 | 56 | 0 | 0 | 35 | 0 | 0 | 35 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Indonesia - Sumatra - Mainland | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Mandiri 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 Mandiri Surf forecast
The above surf forecast table for Mandiri provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mandiri can be found by selecting the local surf guide option on the grey menu. Our Mandiri 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 (Mandiri) 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 Mandiri 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.
Mandiri is 113 km (70 miles) from the city of Kotabumi. If you plan a holiday in Indonesia - Sumatra - Mainland, look for hotels and other accommodation in Kotabumi. Kotabumi has rooms for a wide range of budgets as well as car hire and transport links.
Nearest