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Sao Juliao surfForecast / Ericeira / Portugal
12 Day Weather and Surf, issued 12 pm Friday 24 Oct 2025 WEST
Best Forecast Surf Conditions for Sao Juliao this week:
The surf forecast for Sao Juliao over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 24) at 7PM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 1.3m and 11s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Sao Juliao in the next 12 days are 2.2m 12s and forecast to arrive on Friday (Oct 24) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Oct 28) at 3PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 24th Oct) | 7ft (2.2m) 12s |
| Best Surf | 7PM (Fri 24th Oct) | 7ft (2.2m) 12s |
| Most Powerful | 7PM (Fri 24th Oct) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Sao Juliao over the next 12 days.
Short Range Forecast Moderate rain (total 11mm), heaviest on Sat night. Warm (max 21°C on Fri morning, min 17°C on Sat afternoon). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Tue afternoon. Warm (max 21°C on Mon morning, min 18°C on Mon night). Winds increasing (calm on Mon night, strong winds from the SSW by Wed morning). | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 11 | 13 | 12 | 11 | 13 | 12 | 12 | 9 | 10 | 10 | 10 | 9 | 9 | 10 | 13 | 12 | 11 | 10 | 10 | 6 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 661 | 1573 | 993 | 550 | 1094 | 852 | 983 | 474 | 703 | 461 | 283 | 211 | 169 | 240 | 633 | 355 | 265 | 212 | 139 | 121 | 304 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross- on | cross | cross- off | cross | cross- off | off | cross- on | glass | cross- off | cross | cross- off | cross | cross- on | cross | cross | on | glass |
High Tide / height (m) | 4:55PM 2.57 | 5:08AM 2.64 | 5:28PM 2.41 | 5:42AM 2.50 | 6:04PM 2.25 | 6:21AM 2.35 | 6:47PM 2.08 | 7:11AM 2.21 | 7:47PM 1.95 | 8:20AM 2.12 | 9:11PM 1.90 | 9:43AM 2.13 | 10:37PM 1.99 | ||||||||
Low Tide / height (m) | 10:45AM 0.38 | 10:54PM 0.49 | 11:19AM 0.50 | 11:26PM 0.63 | 11:55AM 0.66 | 12:02AM 0.78 | 12:37PM 0.82 | 12:45AM 0.93 | 1:33PM 0.96 | 1:44AM 1.05 | 2:51PM 1.03 | 3:08AM 1.09 | 4:19PM 0.95 | ||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
| Sunrise | 7:54 | - | - | 7:56 | - | - | 7:56 | - | - | 7:58 | - | - | 7:58 | - | - | 8:00 | - | - | 8:02 | - | - |
| Sunset | - | 6:46 | - | - | 6:45 | - | - | 6:45 | - | - | 6:43 | - | - | 6:42 | - | - | 6:40 | - | - | 6:39 | - |
 | |  |  | |  |  | | | | |  | |  |  |  |  | | | | | |
Rain (mm) | - | - | - | 3 | 2 | 6 | - | - | - | - | - | - | 2 | 9 | 5 | 4 | 1 | 2 | 5 | 1 | - |
| Temp. °C | 21 | 21 | 20 | 20 | 20 | 17 | 19 | 20 | 20 | 21 | 20 | 19 | 20 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 17 |
| Feels °C (?) | 21 | 21 | 21 | 21 | 20 | 16 | 19 | 19 | 19 | 22 | 20 | 21 | 18 | 16 | 17 | 15 | 17 | 16 | 16 | 14 | 16 |
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Recent Eyeball Surf Reports for Ericeira
The wind is still cross-on at Sao Juliao (light winds from the W.(Wind varies from 230 to 300 degs) at Sintra Lisboa/Granja do Marquês Air Base Airport 16 km from Sao Juliao). 1.9m 11s groundswell from the NNW with a 1.4m 11s groundswell from the W and a 1.0m 14s groundswell from the NW. 3 swells combining so expect closeout sets.
16 km away, 2 h 11 min ago
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Information about the Sao Juliao Surf forecast
The above surf forecast table for Sao Juliao provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Sao Juliao can be found by selecting the local surf guide option on the grey menu. Our Sao Juliao 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 (Sao Juliao) 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 Sao Juliao 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.
Sao Juliao is 15 km (9 miles) from the city of Sintra. If you plan a holiday in Ericeira, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.
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