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Surf Forecasts:
Mahury surfForecast / French Guiana / French Guiana
48hr Weather and Surf, issued 2 am Monday 18 May 2026 -03Forecast update in hr min s Forecast update imminent
Mahury surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahury sea temperature is
28.1° C
(Which is normal for this time of year)How big are the waves at Mahury today?
The current surf forecast for Mahury at 9AM is: 1.8m 8s primary swell from a Northeast direction and 1.3m 9s secondary swell from a Northeast direction, 0.2m 11s secondary swell from a North-northeast direction (forecast issued at 02:00am May 18). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6ft (1.8m) | 8s |
| Afternoon (18 May) | 4.5ft (1.3m) | 9s |
| Evening (18 May) | 4.5ft (1.3m) | 9s |
Table - waves today at Mahury. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon morning. Warm (max 27°C on Tue morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NE 9 | NE 9 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NNE 9 | NE 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | |
246 | 454 | 443 | 443 | 235 | 235 | 246 | 249 | 401 | 194 | 194 | 194 | 194 | 454 | 186 | 240 | 528 | 252 | 225 | 220 | 429 | 193 | 193 | 189 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | |
High Tide | 5:36AM2.71m | 6:21PM2.36m | 6:27AM2.65m | 7:15PM2.26m | 7:22AM2.53m | 8:13PM2.16m | ||||||||||||||||||
Low Tide | 11:23PM0.32m | 12:03PM-0.05m | 00:12AM0.38m | 12:55PM0.03m | 1:03AM0.47m | 1:50PM0.17m | ||||||||||||||||||
 | | |  | | | | | | | | | |  |  |  | | |  | | | | | | |
 | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — |
 | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — |
1 | 4 | 5 | 4 | 3 | 3 | 2 | 2 | 2 | 3 | 1 | 2 | 1 | — | — | — | 1 | 1 | — | 1 | 2 | 1 | — | — | |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 |
27 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 29 | 30 | 30 | 29 | 28 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | — | NE 9 | NE 9 | NE 9 | NNE 11 | NNE 11 | — | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | — | — | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | — | — | — |
 kJ | — | 240 | 210 | 235 | 12 | 12 | — | 249 | 225 | 194 | 194 | 194 | 194 | 454 | — | — | 252 | 252 | 225 | 220 | 215 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | NE 11 | NNE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 30 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 9 | NE 9 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | — | — | — | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | — | — | — | NE 9 | NE 9 | NE 9 | NE 9 |
| kJ | 246 | 454 | 443 | 443 | 235 | 235 | 246 | 225 | 401 | — | — | — | 64 | 190 | 186 | 240 | 528 | — | — | — | 429 | 193 | 193 | 189 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1203 | 1209 | 1209 | 1177 | 1743 | 1743 | 1316 | 1717 | 1372 | 1194 | 1194 | 1372 | 1717 | 1717 | 1316 | 1316 | 1203 | 1209 | 1209 | 1316 | 1660 | 1717 | 1316 | 1316 |
Best forecast wave conditions in French Guiana | ||||||||||||||||||||||||
Best forecast wave conditions in French Guiana | ||||||||||||||||||||||||
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