Rio Grande — Brazil

Tide times & tide chart

-0.1 ft1:51am-0.3 ft5:15am0.8 ft1:42pm-0.2 ft11:06pmNow
Tide predictions for Rio Grande, computed from harmonic constituents. High 0.8 feet on Mon 19 Oct 2026 at 13:40, low -0.3 feet on Mon 19 Oct 2026 at 05:20, above MLWS, the chart datum.
↑5:43am↓6:43pm

Predictions are not observations — conditions vary with weather and river flow. Not for navigation.

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Tide times for the next 7 days

Mon 19 Oct 2026 through Sun 25 Oct 2026. All times are local to Rio Grande (America/Sao_Paulo). Heights are in feet above MLWS.
DayTideTimeHeight
Mon 19 Oct 2026High-0.1 ft
Mon 19 Oct 2026Low-0.3 ft
Mon 19 Oct 2026High0.8 ft
Mon 19 Oct 2026Low-0.2 ft
Tue 20 Oct 2026High-0.2 ft
Tue 20 Oct 2026Low-0.4 ft
Tue 20 Oct 2026High0.7 ft
Wed 21 Oct 2026Low-0.5 ft
Wed 21 Oct 2026High0.6 ft
Wed 21 Oct 2026Low0.2 ft
Wed 21 Oct 2026High0.2 ft
Thu 22 Oct 2026Low-0.5 ft
Thu 22 Oct 2026High0.5 ft
Thu 22 Oct 2026Low0.2 ft
Thu 22 Oct 2026High0.3 ft
Fri 23 Oct 2026Low-0.4 ft
Fri 23 Oct 2026High0.4 ft
Fri 23 Oct 2026Low0.2 ft
Fri 23 Oct 2026High0.4 ft
Sat 24 Oct 2026Low-0.3 ft
Sat 24 Oct 2026High0.3 ft
Sat 24 Oct 2026Low0.2 ft
Sat 24 Oct 2026High0.2 ft
Sat 24 Oct 2026Low0.2 ft
Sun 25 Oct 2026High0.5 ft
Sun 25 Oct 2026Low0.0 ft
Sun 25 Oct 2026High0.1 ft
Sun 25 Oct 2026Low-0.2 ft
Sun 25 Oct 2026High0.2 ft
Sun 25 Oct 2026Low0.0 ft
Sun 25 Oct 2026High0.2 ft
Sun 25 Oct 2026Low0.2 ft

Station facts

Position
32.1380° S, 52.1030° W
Time zone
America/Sao_Paulo
Datum
MLWS datum · computed from harmonic constituents
Source
Harmonic constituents from TICON-4
Country
Brazil

Heights are measured above chart datum. A negative height means there is that much less water than the charted depth shows.

Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

How we check predictions — dated samples and their limits.

Nearby

All tide stations