Caldeirao Surf Forecast

/ Santa Catarina – Florianópolis (24 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (27.73° S 48.50° W)

Surf Forecasts:

Caldeirao surfForecast / Santa Catarina – Florianópolis / Brazil

12 Day Weather and Surf, issued 2 am Thursday 18 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

Caldeirao surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Caldeirao sea temperature is 19.5° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Caldeirao this week:

The surf forecast for Caldeirao over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 6AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.5m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Caldeirao in the next 12 days are 1.7m 11s and forecast to arrive on Thursday (Sep 18) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Monday (Sep 22) at 9PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	6AM (Thu 18th Sep)	5.5ft (1.7m) 11s
Best Surf	6AM (Thu 18th Sep)	5.5ft (1.7m) 11s
Most Powerful	6AM (Thu 18th Sep)	5.5ft (1.7m) 11s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Some drizzle, heaviest during Thu night. Warm (max 27°C on Sat morning, min 18°C on Fri night). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 51mm), heaviest during Sun night. Warm (max 22°C on Sun morning, min 13°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the SSW by Mon afternoon).
	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	3	1	2	2	0	1	1	0	2	1	1	1	1	0	1	1	0	0	1	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	E	ESE	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Period(s) (?)	11	10	10	9	9	8	8	9	9	9	9	9	9	9	10	10	10	10	9	9	9
Wave Graph (?)
kJ (?)	611	468	394	281	190	133	108	210	235	157	122	125	160	168	249	161	122	70	45	42	41
Wind (km/h)	N	ENE	N	N	NNE	NNW	N	NE	SE	N	W	N	N	S	SSW	NNW	ESE	SSW	SW	ESE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	cross- on	cross- off	cross- off	cross	cross- off	cross- off	cross	glass	cross- off	glass	cross- off	cross- off	cross	cross	cross- off	on	cross	glass	on	glass
High Tide / height (m)		1:25PM 0.78	11:58PM 0.68		1:24PM 0.77	12:27AM 0.76		1:30PM 0.77	12:57AM 0.83		1:44PM 0.77	1:27AM 0.86		2:01PM 0.77	1:58AM 0.87		2:19PM 0.75	2:29AM 0.85		2:38PM 0.73	3:00AM 0.82
Low Tide / height (m)			7:00PM 0.36	6:52AM 0.02		7:19PM 0.32	7:24AM 0.00		7:39PM 0.28	7:52AM 0.02		7:56PM 0.24	8:17AM 0.06		8:10PM 0.21	8:39AM 0.12		8:23PM 0.18	8:57AM 0.19		8:35PM 0.16

	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	6:07	-	-	6:07	-	-	6:05	-	-	6:05	-	-	6:03	-	-	6:01	-	-	6:01	-	-
Sunset	-	6:07	-	-	6:07	-	-	6:08	-	-	6:08	-	-	6:08	-	-	6:09	-	-	6:09	-

Rain (mm)	-	-	1	-	-	-	-	-	-	3	11	25	5	7	-	-	-	-	-	-	-
Temp. °C	22	22	20	23	23	19	27	24	20	22	21	20	20	17	15	21	19	17	16	17	18
Feels °C (?)	22	21	21	20	20	19	26	24	20	24	24	21	21	12	11	19	15	15	15	15	17

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Santa Catarina - Florianópolis

Wind Update Continuing clean conditions at Caldeirao (calm at Florianopolis Airport 7 km from Caldeirao). 2.0m 10s swell from the ESE with a 1.0m 12s groundswell, also from the ESE. 2 swells combining so expect closeout sets.
2 hours 35 minutes ago Caldeirao

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2 h 35 min ago

2 km/h

ESE

Clean

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Caldeirao 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.

Information about the Caldeirao Surf forecast

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

Caldeirao is 16 km (10 miles) from the city of 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.