Marianne Bay
Tunapuna/Piarco · Trinidad and Tobago
Rating right now
A year-round beach on the Coastal Waters near Tunapuna/Piarco, Marianne Bay is exposed to N swell — NW–NE on the forecast is when it lights up, ideally with a SE–SW wind.
Today's surf at Marianne Bay
Updated 23:17 spot time
Marianne Bay surf report for Wednesday 30 Sept: waves 1.0 m head high to overhead, 0.5 m NNE swell at 8.2 s. Wind up to 17 km/h E. Water 29°C. Best surf window around 04:00 — fair (2.5/5) with 10 km/h E wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~29°C (84.2°F) on average
Jan
26.9°C
80.4°F · 26.2–28°C
Feb
26.7°C
80.1°F · 25.6–27.8°C
Mar
26.8°C
80.2°F · 25.6–27.8°C
Apr
27.3°C
81.1°F · 26.4–28.7°C
May
27.6°C
81.7°F · 25.8–29.3°C
Jun
27.9°C
82.2°F · 27–28.9°C
Jul
28.2°C
82.8°F · 27.2–29.2°C
Aug
28.9°C
84°F · 27.9–29.9°C
Sep
29°C
84.2°F · 27.8–30.4°C
Oct
29°C
84.2°F · 28–30.2°C
Nov
28.5°C
83.3°F · 27.1–29.8°C
Dec
27.5°C
81.5°F · 26.3–28.6°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
NW–NE
Best wind
SE–SW
Break type
Beach break
Best season
Year-round
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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