Surf Forecasts:
Tongo Reef surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 9PM (local time) - 5.5ft (1.7m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 5.5ft (1.7m), 11s period, S swell with 658 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 9PM (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 Wednesday (Aug 19) at 9PM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.4m 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 1.7m 11s and forecast to arrive on Wednesday (Aug 19) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 9s period and expected on Monday (Aug 17) at 9AM.
| Wave Type | Time (-06) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 19th Aug) | 5.5ft (1.7m) 11s |
| Best Surf | 9PM (Wed 19th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 6PM (Wed 19th Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Tongo Reef over the next 16 days.
The Lowdown
Alright, let’s get the surf report rollin’. This is Rusty, and I’ve got the rundown on Tongo Reef. Buckle up, because it’s a bit of a mixed bag coming our way.
First thing you need to know about this spot: it’s an advanced reef break. Not for the faint of heart, and it can pack a punch. The water temperature is sitting at 78°F right now, which is a whopping 9°F warmer than your typical August water. That’s very unusual – feels like a bathtub out there, so a spring suit might be too much.
The overall pattern for the next couple of weeks is pretty frustrating. We’re looking at a lot of days where the surf is just “marginal” at best. The combined wave energy is all over the place, but mostly sitting in that moderate range, like 818 (moderate energy) to start, and then it drops. A lot of the early days have the wind blasting out of the south and southeast, which is cross-offshore for Tongo. That keeps the faces clean, but with the moderate breeze, it’s not glassy perfection.
Let’s run through the dates. Starting off, August 16th and 17th serve up some waist-to-chest high swell (3ft to 4ft) from the southwest, but the scores are low. The wind is cross-off, so it’s rideable, but the quality just isn’t there. It’s a bit of a skunk.
We hit a patch from the 18th to the 21st where the swell bumps up a touch to around 5ft to 6ft, but it’s coming from the SSE and the period drops to short, weak 8 to 10 seconds. The energy is moderate (values like 774 to 825), but with that short period, the waves will be choppy and lacking that grunt. The wind stays cross-off, which is the only saving grace, but it’s a pass for me.
The middle of the window, around the 22nd and 23rd, sees a weird drop in size to barely waist-high (2ft to 3ft), but the periods get long again (17 to 19 seconds). That’s a groundswell signal, but for a reef, that small size with very long periods might mean long waits between a decent set wave. The energy is still moderate (595 to 652), but the size underwhelms.
Then it gets even slower. From the 24th through the 26th, we’re looking at tiny surf, mostly under 3ft, with low energy readings (down to 174 on the 25th, which is very weak). The 25th afternoon is even flagged as “poor surf conditions.” That’s a stretch of a couple days with nothing to get excited about.
But hold on, for the patient surfer, there is a light at the end of the tunnel. The standout window is around August 28th. We see a promising push of swell on the 28th morning: 4ft from the southwest with a 16-second groundswell period. The combined energy jumps up to 1021 (strong to very strong wave energy). That’s the most juice in the whole forecast. The wind is light from the south at just 9 mph, which is a gentle breeze and cross-off. That setup could deliver some proper, powerful lines on the reef. The water will be glassy, the swell is from the optimum south direction, and the energy is there. This is the one to circle.
After that, the swell backs off again into the end of August, with smaller swell and dropping energy. The last days of the month look serviceable but not epic, with the wind staying cross-off.
Crowds are a factor here; they can pop up sometimes. When the surf’s this inconsistent, the few good windows, like the 28th, are likely to draw a crowd.
So, the bottom line: Don’t get your hopes up for most of this run. The early days are poor. The middle is tiny. If you’ve got flexibility, aim for Friday, August 28th. That’s the best on offer, and it could actually be really good. It’s a long way out, so keep an eye on it, but that’s the one with the most promise. For the rest… maybe go for a swim.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon morning, min 23°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Wed morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SSE 8 | SSE 8 | S 9 | S 10 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSW 19 | SSE 9 | SW 18 |
Wave Graph | |||||||||||||||||||||
541 | 526 | 492 | 466 | 477 | 441 | 412 | 422 | 357 | 598 | 646 | 646 | 530 | 463 | 454 | 383 | 294 | 249 | 248 | 269 | 330 | |
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 | 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 | 5:17PM1.99m | 5:40AM2.08m | 5:59PM1.88m | 6:19AM1.96m | 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 | ||||||||
Low Tide | 11:15AM0.19m | 11:26PM0.20m | 11:56AM0.28m | 00:06AM0.33m | 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 | ||||||||
6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 6:05 | — | — | 6:05 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 24 | 24 |
Feels °C | 22 | 21 | 24 | 24 | 22 | 22 | 23 | 23 | 23 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | S 8 | SW 14 | SW 16 | SW 15 | SSW 14 | SSE 8 | S 9 | S 10 | S 11 | S 11 | SW 12 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 |
541 | 526 | 265 | 466 | 477 | 441 | 362 | 422 | 357 | 598 | 646 | 646 | 37 | 463 | 454 | 383 | 294 | 249 | 218 | 213 | 213 | |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | SW 14 | N 9 | N 8 | N 10 | N 9 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 12 | SW 18 | SW 15 | SW 16 | SSW 15 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 18 |
8 | 8 | 492 | 15 | 12 | 7 | 13 | 293 | 261 | 172 | 114 | 73 | 78 | 104 | 261 | 272 | 203 | 236 | 175 | 170 | 330 | |
Swell 3 Height (m) Direction Period (s) | N 9 | N 8 | N 7 | S 12 | S 11 | N 7 | NW 10 | N 8 | N 7 | SW 18 | SSW 18 | SW 16 | SW 15 | N 8 | SW 21 | SSW 21 | SW 20 | SW 20 | SSW 19 | SW 18 | SSW 12 |
2 | 5 | 4 | 3 | 10 | 4 | 4 | 5 | 4 | 12 | 30 | 62 | 33 | 1 | 18 | 43 | 100 | 98 | 248 | 269 | 131 | |
Wind waves Height (m) Direction Period (s) | S 7 | S 7 | — | S 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 7 | — | — | — | S 10 | — | — | — | — | — | SSE 3 | — | — |
269 | 277 | — | 279 | 324 | 370 | 412 | 110 | 69 | — | — | — | 530 | — | — | — | — | — | 2 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 1238 | 94 | 94 | 1253 | 94 | 94 | 1264 | 94 | 980 | 1238 | 0 | 980 | 1257 | 977 | 94 | 1238 | 94 | 94 | 977 | 0 |
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)
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.











