
Surf Forecasts:
Fonte da Telha surf forecast from 14 Sep 2026:
- Best quality surf: Thursday 17 Sep, 7AM (local time) - 6ft (1.8m), 10s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 7AM (local time) - 5ft (1.5m), 14s period, NW swell with 886 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 7AM (local time) - 6ft (1.8m), 10s period with NW swell.
Best Forecast Surf Conditions for Fonte da Telha this week:
The surf forecast for Fonte da Telha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 7AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Fonte da Telha in the next 16 days are 1.5m 14s and forecast to arrive on Saturday (Sep 19) at 7AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 17th Sep) | 6ft (1.8m) 10s |
| Best Surf | 7AM (Thu 17th Sep) | 6ft (1.8m) 10s |
| Most Powerful | 7AM (Sat 19th Sep) | 5ft (1.5m) 14s |
Table - best surf conditions forecast for Fonte da Telha over the next 16 days.
The Lowdown
Alright, let’s switch it over to feet and miles for those who think in those numbers.
Okay, so looking at the next two weeks here at Fonte da Telha, it’s a proper mixed forecast. The water is sitting at about 67°, which is a touch colder than average for the season, so keep that in mind.
We start slow. Monday morning (14th September) has a tiny 2ft NW swell but the wind is cross from the SSE and the energy is weak (just 145). Poor conditions. That carries on through Monday afternoon and into Tuesday. Tuesday afternoon actually sees the swell period drop to a pathetic 5 seconds — that’s just wind chop. Wednesday brings the swell up to about 6ft with solid energy (555 then 629), but that NNW wind is blowing 19 to 22 mph, making everything lumpy. Not good for paddling.
Thursday morning (17th) is the first real chance. Light NNE cross-offshore wind at 9 mph, 6ft of NW swell and strong energy (608). It’s only marked as marginal, but it’s the cleanest we’ve seen. Friday morning is similar — clean, lighter wind, 5ft NW swell with moderate energy (344).
But the highlight — and I mean the real highlight — is Saturday morning, 19th September. This is the one. We’ve got a 5ft NW groundswell with a 14-second period, pumping energy at 890. The wind is light ENE and offshore. That’s clean, glassy conditions for a spot that’s exposed to that WSW optimum direction. It’s beginner-friendly, fairly consistent, but crowds are often here, so get there early. The only thing: long-period groundswell like that can make beach breaks a little fast, but Fonte da Telha handles it well.
Sunday morning (20th) cleans up with 3ft NW swell and cross-offshore winds, though energy drops off. Monday morning (21st) is another clean session with 2ft NW swell and a 13-second period. Tuesday morning (22nd) is glassy with 3ft NW swell — perfect for a longboard.
Then we hit a flat patch from Wednesday 23rd through Saturday 26th. Swell drops right off, waves are tiny or chopped. Some clean windows but nothing worth paddling out for. Energy readings drop to as low as 29.
Sunday 27th morning shows 6ft W swell with moderate energy (809) and light NW wind — but it’s cross-shore. The afternoon jumps to 7ft WNW swell with massive energy (1258), but the onshore wind kills it. That’s solid size — over 8ft — so it’s expert only, and the conditions are messy.
Monday 28th and Tuesday 29th are back to marginal, with onshore wind and lumpy seas.
Bottom line: the absolute best session is Saturday morning, 19th September at Fonte da Telha. Offshore wind, clean 5ft NW groundswell with long period, and heaps of energy. That’s the one to aim for.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Tue night). Winds increasing (light winds from the NNW on Mon night, fresh winds from the NNW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 18°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu afternoon, calm by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NW 11 | NW 11 | NW 10 | NW 10 | NW 5 | NW 7 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 16 | NW 14 | NW 13 | NW 13 | NW 12 | NW 11 | NW 10 |
Wave Graph | |||||||||||||||||||||
97 | 75 | 35 | 24 | 55 | 229 | 460 | 626 | 817 | 599 | 557 | 625 | 335 | 460 | 474 | 874 | 628 | 418 | 268 | 198 | 156 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | off | off | on | glassy | cross-off | cross-on | glassy |
High Tide | 5:16PM2.75m | 5:33AM2.63m | 5:51PM2.52m | 6:07AM2.45m | 6:28PM2.28m | 6:45AM2.26m | 7:11PM2.04m | 7:34AM2.07m | 8:12PM1.84m | 8:48AM1.92m | 9:51PM1.74m | 10:33AM1.91m | 11:30PM1.81m | ||||||||
Low Tide | 11:01AM0.18m | 11:20PM0.28m | 11:37AM0.35m | 11:52PM0.48m | 12:13PM0.55m | 00:26AM0.70m | 12:55PM0.76m | 1:07AM0.91m | 1:50PM0.97m | 2:06AM1.09m | 3:20PM1.10m | 3:49AM1.17m | 5:13PM1.06m | ||||||||
7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | |
— | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 28 | 26 | 26 | 25 | 19 | 22 | 22 | 20 | 27 | 27 | 21 | 27 | 28 | 24 | 27 | 26 | 25 | 25 | 27 | 26 |
Feels °C | 25 | 27 | 24 | 23 | 21 | 16 | 17 | 16 | 16 | 23 | 21 | 17 | 24 | 24 | 21 | 24 | 24 | 22 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | WNW 9 | WNW 8 | WNW 12 | WNW 11 | WNW 10 | S 12 | S 12 | NW 10 | S 12 | S 16 | NW 9 | NW 9 | NW 9 | NW 14 | NW 13 | NW 13 | NW 12 | NW 11 | NW 10 |
97 | 75 | 26 | 23 | 14 | 45 | 92 | 3 | 3 | 599 | 3 | 5 | 335 | 255 | 193 | 874 | 628 | 418 | 268 | 198 | 156 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | NW 10 | NW 10 | S 13 | — | S 13 | — | S 12 | S 12 | S 16 | S 11 | S 15 | NW 15 | NW 16 | SW 14 | SW 13 | S 13 | S 13 | S 11 | WNW 16 |
48 | 46 | 35 | 24 | 4 | — | 3 | — | 3 | 3 | 5 | 3 | 4 | 34 | 474 | 8 | 7 | 3 | 3 | 2 | 25 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | NW 13 | — | — | — | — | S 12 | S 18 | — | S 11 | W 16 | NW 19 | S 14 | SW 14 | — | S 10 | S 13 | S 13 | W 3 |
— | — | 2 | 6 | — | — | — | — | 3 | 6 | — | 2 | 5 | 14 | 4 | 8 | — | 2 | 3 | 3 | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | NW 4 | NW 4 | NW 5 | NW 7 | NW 9 | NW 9 | NW 10 | — | NW 10 | NW 10 | — | NW 9 | — | — | — | — | — | — | — |
— | — | 4 | 4 | 55 | 229 | 460 | 626 | 817 | — | 557 | 625 | — | 460 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 15 | 6 | 20 | 822 | 474 | 709 | 464 | 75 | 6 | 464 | 75 | 0 | 20 | 0 | 0 | 146 | 0 | 0 | 88 | 0 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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 Fonte da Telha Surf forecast
The above surf forecast table for Fonte da Telha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fonte da Telha can be found by selecting the local surf guide option on the grey menu. Our Fonte da Telha 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 (Fonte da Telha) 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 Fonte da Telha 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.
Fonte da Telha is 4 km (2 miles) from the city of Charneca. If you plan a holiday in Lisboa, look for hotels and other accommodation in Charneca. Charneca has rooms for a wide range of budgets as well as car hire and transport links.










