Surf Forecasts:
Tongo Reef surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 12AM (local time) - 5.5ft (1.7m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 3AM (local time) - 6ft (1.9m), 10s period, S swell with 789 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 12AM (local time) - 5.5ft (1.7m), 11s period with S swell.
Best Forecast Surf Conditions for Tongo Reef this week:
The surf forecast for Tongo Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 12AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.6m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tongo Reef in the next 16 days are 1.9m 10s and forecast to arrive on Wednesday (Aug 19) at 3AM. 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 5s period and expected on Tuesday (Aug 25) at 12PM.
| Wave Type | Time (-06) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 20th Aug) | 5.5ft (1.7m) 11s |
| Best Surf | 12AM (Thu 20th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 3AM (Wed 19th Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Tongo Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here, checkin' in with a look at the upcoming swell window. We've got one main player on the menu, and it's a reef setup that knows how to handle a solid push. There's a bit of a lull to start, but patience is gonna pay off.
The water right now is sitting at a balmy 78° which is a full 8° warmer than usual for this time of year, so you can definitely leave the thick rubber at home.
We're looking at Tongo Reef, a real advanced arena. The first few days are a bit of a tease. Tuesday the 18th through Thursday the 20th see some chest-high swell, around 5 ft to 6 ft from the SSE and S. The energy's moderate (681-976), but the cross-off winds keep things choppy, and the period is short at 8-10 seconds. It's all pretty average.
Now, Friday the 21st morning is where you start to pay attention. The swell drops a touch to 5 ft from the SSE, but we finally get some light offshore wind from the SE at 9 mph. That's going to put some real clean lines on those faces. The energy is still solid (649) and it sets up a nice run.
The real standouts, the ones you circle on the calendar, are the final two weekends. Starting Friday the 28th of August through Sunday the 30th. We've got a consistent groundswell from the SW building to 5 ft to 6 ft. The period stretches out to a very long 14 to 17 seconds, meaning these waves are packing some serious punch. The combined energy readings are strong to very strong (1184-1390), so there's plenty of power. Winds are light and variable from the S and SSE, keeping it clean and glassy. This is big boy territory though; anything over 5 ft is a handful, and at 6 ft, this reef is for experienced crew only. The long period makes it even more critical.
After that, the start of September sees the swell fading back to a more manageable 3 ft to 4 ft, but it's still cross-off, so the quality drops off.
So, for the best of the best, it’s that Friday the 28th of August through Sunday the 30th. Clean, powerful, and long-period SW groundswell. Just know your limits at this break.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Fri morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 8 | SSE 8 | S 9 | S 10 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 380 | 376 | 483 | 789 | 723 | 657 | 632 | 588 | 454 | 334 | 300 | 254 | 274 | 269 | 330 | 319 | 346 | 390 | 261 | 251 | 178 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | 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 | 6:44PM1.76m | 7:01AM1.82m | 7:33PM1.63m | 7:49AM1.69m | 8:32PM1.52m | 8:47AM1.58m | 9:46PM1.46m | 9:58AM1.52m | 11:05PM1.48m | 11:12AM1.53m | 00:11AM1.55m | 12:14PM1.59m | 1:01AM1.66m | ||||||||
Low Tide | 12:37PM0.38m | 00:47AM0.49m | 1:22PM0.50m | 1:32AM0.64m | 2:14PM0.61m | 2:28AM0.78m | 3:20PM0.68m | 3:45AM0.86m | 4:39PM0.70m | 5:13AM0.86m | 5:52PM0.65m | 6:23AM0.79m | 6:46PM0.56m | ||||||||
 | |  |  |  |  | | |  | | | | | | | | | | | | | |
 | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:02 | — | — | 6:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 25 | 27 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | S 9 | SW 13 | SSW 13 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SW 13 | SSW 13 | SSE 9 | SW 18 | SW 17 | SSE 8 | SW 16 | SW 16 | SW 15 |
| kJ | 301 | 293 | 483 | 175 | 114 | 657 | 632 | 588 | 454 | 334 | 300 | 254 | 175 | 147 | 254 | 319 | 346 | 134 | 261 | 251 | 178 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 8 | SW 13 | SW 18 | N 8 | SSW 12 | SW 12 | SSW 15 | SW 16 | SSW 15 | SW 14 | SSW 14 | SSW 19 | SW 18 | SW 18 | SSW 12 | SW 12 | SW 16 | SSW 11 | SSW 11 | SSW 10 |
| kJ | 14 | 11 | 261 | 12 | 1 | 101 | 38 | 142 | 264 | 272 | 203 | 236 | 248 | 269 | 330 | 94 | 69 | 390 | 47 | 46 | 42 |
Swell 3 Height (m) Direction Period (s) | NW 10 | N 8 | N 7 | N 6 | SW 18 | SW 16 | SW 18 | N 8 | SW 21 | SSW 21 | SW 20 | SW 20 | N 8 | N 8 | SSW 12 | N 6 | N 6 | SSW 11 | N 9 | N 8 | N 7 |
| kJ | 4 | 1 | 4 | 1 | 12 | 41 | 48 | 1 | 18 | 43 | 100 | 98 | 5 | 5 | 99 | 3 | 1 | 82 | 1 | 1 | 4 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 8 | — | S 10 | S 11 | — | — | — | — | — | — | — | SSE 9 | SSE 9 | — | SSE 9 | SSE 9 | — | SSE 8 | SSE 8 | SSE 8 |
| kJ | 380 | 376 | — | 789 | 723 | — | — | — | — | — | — | — | 274 | 268 | — | 213 | 208 | — | 96 | 92 | 96 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 976 | 1244 | 1019 | 1032 | 1253 | 0 | 977 | 1238 | 0 | 0 | 1301 | 0 | 94 | 94 | 977 | 977 | 94 | 94 | 977 | 1309 | 1047 |
Best forecast wave conditions in Galapagos - San Cristobal | |||||||||||||||||||||
Best forecast wave conditions in Ecuador | |||||||||||||||||||||
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 Tongo Reef 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 Tongo Reef Surf forecast
The above surf forecast table for Tongo Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tongo Reef can be found by selecting the local surf guide option on the grey menu. Our Tongo Reef 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 (Tongo Reef) 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 Tongo Reef 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.
Are you planning a holiday in Galapagos - San Cristobal? If you are looking for accommodation near Tongo Reef, camping, hotels and holiday cottages in Galapagos - San Cristobal, consider staying in Galapagos Islands which is 3 km (2 miles) away. Other places in and around Galapagos - San Cristobal where you can find information about places to rent, and car hire include San Cristobal which is 53 km (33 miles) away and Bahia de la Academia, 79 km (49 miles) away.
Nearest