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Gi Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Gi surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 8 pm Tuesday 16 Sep 2025 -03
How big are the waves at Gi today?
The current surf forecast for Gi at 11PM is: 1.7m 13s primary swell from a East-southeast direction and 0.4m 5s secondary swell from a South-southwest direction, 0.4m 4s secondary swell from a South-southwest direction (forecast issued at 08:00pm September 16). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | - | - |
| Afternoon (16 Sep) | - | - |
| Evening (16 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Gi. (Swell directed towards the surf break)
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 10 | 10 | 10 | 10 | 10 | 12 | 9 | 10 | 10 | 9 | 10 | 10 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 975 | 902 | 1030 | 870 | 990 | 850 | 904 | 906 | 785 | 484 | 763 | 778 | 669 | 618 | 614 | 528 | 527 | 505 | 388 | 318 | 446 | 342 | 560 | 341 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- on | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | glass | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross |
High Tide / height (m) | 12:23AM 0.34 | 3:22PM 0.45 | 1:00AM 0.39 | 3:27PM 0.45 | 1:33AM 0.44 | |||||||||||||||||||
Low Tide / height (m) | 4:56PM 0.29 | 4:44AM 0.16 | 5:27PM 0.27 | 5:24AM 0.13 | 6:00PM 0.24 | 6:08AM 0.11 | ||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - |
| Sunset | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:08 | - | - | - | - | - | - | - |
 |  |  |  |  |  | | |  | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 18 | 18 | 17 | 17 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 21 | 19 | 19 | 20 | 18 | 17 | 19 | 23 | 23 |
| Feels °C (?) | 19 | 17 | 18 | 17 | 18 | 20 | 18 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 22 | 21 | 19 | 19 | 21 | 17 | 15 | 17 | 21 | 21 |
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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 - Sul
The wind is still cross-off at Gi (light winds from the W at Santa Marta (86972 -0) 19 km from Gi). 1.9m 13s groundswell from the ESE with a 0.6m 4s local chop from the SSW. 2 swells combining so expect closeout sets.
19 km away, 1 h 12 min ago
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