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Surf Forecasts:

Furnas surfForecast / Ericeira / Portugal

information circle12 Day Weather and Surf, issued 12 am Monday 15 Sep 2025 WEST
Forecast update in hr  min  s Forecast update imminent
Furnas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Furnas sea temperature is
18.9° C
 (Which is 1.7°C colder than average for this time of year)

Best Forecast Surf Conditions for Furnas this week:

The surf forecast for Furnas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 7AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.7m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Furnas in the next 12 days are 3.0m 13s and forecast to arrive on Monday (Sep 15) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 18s period and expected on Tuesday (Sep 16) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 18th Sep)4.5ft (1.3m) 13s
Best Surf 7AM (Thu 18th Sep)4.5ft (1.3m) 13s
Most Powerful 7PM (Mon 15th Sep)10ft (3.0m) 13s

Table - best surf conditions forecast for Furnas over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 22°C on Wed afternoon, min 16°C on Mon night). Winds decreasing (fresh winds from the N on Mon afternoon, light winds from the NNE by Tue night).

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Thu morning, min 18°C on Wed night). Winds increasing (calm on Fri morning, fresh winds from the N by Sat afternoon).

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sun
21
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
0
0
2
2
2
2
1
1
3
1
3
2
0
2
1
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.2
NW
2.1
NW
2.3
NW
3
NW
3
NW
2.5
NW
2.2
NW
1.9
NW
1.7
NNW
0.9
NW
1.4
NW
1.5
WNW
1.4
WNW
1.3
WNW
1.1
WNW
1.1
WNW
0.9
WNW
0.9
WNW
0.7
NNW
0.9
NNW
1.1
NNW
Period(s) (?)111114131212111110101312111010999151312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1090102720943031233119991193777600157649615450340227201113106191265328
Wind
(km/h)
30
N
30
N
40
N
35
N
20
N
20
NNW
25
N
15
NNE
25
N
15
NNE
10
NNE
10
NNW
10
NNE
5
ESE
20
SW
5
SSE
10
N
30
N
35
N
30
N
35
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscross-
off		crosscross-
off		cross-
off		cross-
on		cross-
off		glasscross-
on		glasscrosscrosscrosscrosscross
High Tide
/ height (m)
9:28AM
2.24
10:31PM
2.05
11:05AM
2.26
12:01AM
2.13
12:23PM
2.42
1:04AM
2.30
1:19PM
2.61
1:51AM
2.47
2:02PM
2.78
2:29AM
2.61
2:40PM
2.90
3:02AM
2.72
3:13PM
2.96
Low Tide
/ height (m)
2:55AM
0.91
4:05PM
0.83
4:39AM
0.98
5:46PM
0.76
6:07AM
0.86
6:55PM
0.58
7:07AM
0.67
7:44PM
0.40
7:51AM
0.49
8:22PM
0.26
8:28AM
0.35
8:55PM
0.16
9:01AM
0.24
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sun
21
Sunrise-7:18--7:18--7:20--7:20--7:22--7:22--7:22-
Sunset--7:46--7:45--7:43--7:42--7:39--7:38--7:37
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C192119162020172122202626232524222121171818
Feels °C (?)161814111818141919172323202523242217121312
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Ericeira

  1. weather stationWind Update The wind is still cross-on at Furnas (moderate winds from the NNW at Sintra/Granja 11 km from Furnas). 1.8m 11s groundswell from the NW with a 1.1m 4s local chop from the NNW. 2 swells combining to make bigger set waves.

    2 hours 19 minutes ago Furnas
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2 h 19 min ago

25 km/h
NNW
Cross-On
Please reload the page to see if there are any updates.

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 Furnas 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.

View detailed surf forecast for Furnas at:
surf-forecast.com

Information about the Furnas Surf forecast

The above surf forecast table for Furnas provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Furnas can be found by selecting the local surf guide option on the grey menu. Our Furnas 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 (Furnas) 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 Furnas 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.

Furnas is 12 km (7 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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