Ponta Das Aranhas surfForecast / Santa Catarina – Florianópolis / Brazil

information circle12 Day Weather and Surf, issued 8 am Wednesday 17 Dec 2025 -03
Forecast update in hr  min  s Forecast update imminent
Ponta Das Aranhas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ponta Das Aranhas sea temperature is
25.1° C
(Which is 1.0°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Ponta Das Aranhas this week:

The surf forecast for Ponta Das Aranhas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 3AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Ponta Das Aranhas in the next 12 days are 1.9m 8s and forecast to arrive on Monday (Dec 22) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Dec 18) at 12PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 18th Dec)4ft (1.2m) 9s
Best Surf 3AM (Thu 18th Dec)4ft (1.2m) 9s
Most Powerful 6PM (Mon 22nd Dec)6ft (1.9m) 8s

Table - best surf conditions forecast for Ponta Das Aranhas over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 24°C on Fri morning, min 20°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
2
0
0
0
0
0
1
0
0
1
1
1
1
1
2
1
0
2
Swell
Height Map
Wave Height (m) & direction (?)
1.9
S
1.4
S
1.2
S
1
S
0.8
S
0.5
S
0.8
NE
0.9
NE
1.1
NE
1.1
NE
1.1
NE
1.6
ENE
1.5
ENE
1.4
ENE
1.5
ENE
1.7
ENE
1.8
ENE
1.8
ENE
1.7
ENE
1.7
ENE
1.7
ENE
Period(s) (?)889998575666777888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)48827725116897322991517275185210191204345412466363394381
Wind
(km/h)
15
S
15
ESE
5
NE
15
N
25
NNE
15
N
15
N
25
NNE
15
NNE
15
NNE
25
NE
25
NNE
20
N
20
NNE
20
NNE
15
NNE
15
NE
15
NNE
20
N
20
NE
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
crosscross-
off
High Tide
/ height (m)
12:19PM
0.68
1:18AM
0.82
12:51PM
0.69
1:53AM
0.85
1:21PM
0.72
2:26AM
0.86
1:52PM
0.74
2:58AM
0.85
2:24PM
0.77
3:32AM
0.84
2:58PM
0.79
4:08AM
0.81
3:36PM
0.79
Low Tide
/ height (m)
6:45PM
0.14
7:38AM
0.33
7:19PM
0.10
8:13AM
0.34
7:54PM
0.07
8:46AM
0.35
8:31PM
0.05
9:18AM
0.36
9:10PM
0.05
9:53AM
0.38
9:53PM
0.07
10:34AM
0.40
10:40PM
0.09
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise5:13--5:13--5:13--5:13--5:13--5:15--5:15--
Sunset-7:05--7:06--7:06--7:07--7:07--7:07--7:07-
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
light rain
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
thunderstorm
Rain (mm)
-----------3--------1
Temp. °C222222232322242424252424252524252525262625
Feels °C (?)191921201920222224232225252626272727272728
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Ponta Das Aranhas Surf forecast

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

Ponta Das Aranhas is 18 km (11 miles) from Florianopolis. If you plan a holiday in Florianópolis, look for hotels and other accommodation in Florianopolis. Florianopolis has rooms for a wide range of budgets as well as car hire and transport links.

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