Porto Alegre tides today
- Tide now 1.7 ft ↑ rising · high 5:05 am (6.4 ft)
- Best time to fish 9:50–11:50 pm good day · 8/10
- Beach tomorrow 11:00 am–3:00 pm Good beach day · 8/10
- Waves · water 2.7 ft · 83 °F slight · 8.8 s from the south-southwest
- Wind · air 4 mph · 81 °F from the SW, gusts 10 · light drizzle
- Surf tomorrow 2.0–3.1 ft Poor day · 2/10 · 5:00–9:00 am
- Sun 5:14 am–5:21 pm 12 h 7 min of daylight
- Moon 92% · 7:43 pm waning gibbous · rises at 7:43 pm
Today in Porto Alegre there are high tides at 4:20 am (6.6 ft) and 4:59 pm (6.0 ft) and low tides at 10:38 am and 10:47 pm. Tide coefficient 100. Right now the tide is rising toward the high tide at 5:05 am. The sun rises at 5:14 am and sets at 5:21 pm: 12 h 7 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 7:43 pm. Major solunar periods run from 12:26 pm to 2:26 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 2.7 ft waves. There's a light breeze from the southwest (4 mph). Light drizzle, 81 °F.
Fishing in Porto Alegre today
Best time to fish
Solunar activity today: medium- High tide at 4:59 pm, coefficient 97
- Sunset at 5:21 pm, golden hour from 4:53 pm
- Steady pressure (29.88 inHg), light onshore wind (6 mph) and some swell (2.9 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 100 (big spring tides)
Your day at a glance
The best window, 4:50 pm to 5:40 pm, combines the 4:59 pm high tide, sunset, a light onshore breeze and some swell. Also good from 4:30 am to 5:20 am, with the 4:20 am high tide, sunrise, a light onshore breeze and some swell. Also good from 9:50 pm to 11:50 pm, with the 10:47 pm low tide, a light onshore breeze and some swell.
Species with the most records nearby: yellowfin tuna, skipjack tuna, bigeye tuna and little tunny. What you can catch
Beach day in Porto Alegre
Is it a beach day?
1 good hour- Sun and clouds
- Feels like 90 °F: beach weather
- Onshore breeze (4 mph)
- UV 4 (moderate): SPF 30 sunscreen
- Water at 82 °F (very warm)
- Swim with care: 3.2 ft waves every 8 s; moderate rip current risk
Thunderstorms during beach hours: get out of the water and off the sand as soon as you hear thunder.
Today, hour by hour
- Swimming Use care · 3.2 ft
3.2 ft waves every 8 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 83 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 11 · SPF 50
Max UV 11 (extreme): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 10:00 am–2:00 pm (very high UV).
- Wind 5 mph
Onshore breeze (5 mph).
- Tide & sand 10:38 am
Low tide at 10:38 am and 10:47 pm: that's when there's the most sand. High tide at 4:20 am and 4:59 pm. Coefficient 100 (spring tides): little sand left at high tide.
The best window, 6:00 am to 9:00 am, brings beach weather, little wind and water at 82 °F, though with some waves.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days
Beaches near Porto Alegre
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Praia Bungá 0.1 mi · S
- Praia Simão Sàdó 0.4 mi · S
- Praia Dom Gái 0.5 mi · S
- Praia Istangá 0.6 mi · SW
- Praia Cabana 0.8 mi · SW
- Praia Micondó 0.9 mi · N
- Praia Inhame 1.1 mi · SW
- Praia Piscina 1.6 mi · W
- Parking
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Porto Alegre
Webcams provided by windy.com — add a webcam
Tides in Porto Alegre
Today's high and low tides
- ▲ High tide 4:20 am 6.6 ft · coef. 100
- ▼ Low tide 10:38 am 1.0 ft
- ▲ High tide 4:59 pm 6.0 ft · coef. 97
- ▼ Low tide 10:47 pm 1.7 ft
↑ Rising The tide is rising. 5 h 59 min to high tide at 5:05 am.
Tide coefficient 100 for the 4:20 am high tide and 97 for the 4:59 pm high tide. Big spring tides. The water rises and falls 5.7 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
2026 extremes: the highest tide of the year is on March 20 (6.9 ft) and the lowest, on July 15 (0.2 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. chart datum (LAT)
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 28 (coefficient 102, 5.8 ft range). The smallest, from October 18 to 19 (coefficient 30, 2.0 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 5:14 am · 5:21 pm | High tide 4:20 am · 6.6 ft | Low tide 10:38 am · 1.0 ft | High tide 4:59 pm · 6.0 ft | Low tide 10:47 pm · 1.7 ft | Coef. 100 | 92% | Major periods 12:26 pm | Medium |
| Thu 29 | 5:14 am · 5:21 pm | High tide 5:05 am · 6.4 ft | Low tide 11:22 am · 1.1 ft | High tide 5:51 pm · 5.8 ft | Low tide 11:36 pm · 2.0 ft | Coef. 93 | 85% | Major periods 12:58 am · 1:30 pm | Medium |
| Fri 30 | 5:14 am · 5:21 pm | High tide 5:56 am · 6.0 ft | Low tide 12:10 pm · 1.4 ft | High tide 6:52 pm · 5.6 ft | — | Coef. 81 | 76% | Major periods 2:03 am · 2:35 pm | Low |
| Sat 31 | 5:14 am · 5:21 pm | Low tide 12:31 am · 2.4 ft | High tide 6:54 am · 5.6 ft | Low tide 1:04 pm · 1.7 ft | High tide 8:04 pm · 5.4 ft | Coef. 67 | 65% | Major periods 3:06 am · 3:36 pm | Medium |
| Sun 1 | 5:14 am · 5:21 pm | Low tide 1:38 am · 2.8 ft | High tide 8:03 am · 5.2 ft | Low tide 2:10 pm · 2.1 ft | High tide 9:25 pm · 5.3 ft | Coef. 55 | Last quarter | Major periods 4:05 am · 4:32 pm | Medium |
| Mon 2 | 5:14 am · 5:21 pm | Low tide 3:04 am · 3.1 ft | High tide 9:26 am · 5.0 ft | Low tide 3:28 pm · 2.3 ft | High tide 10:43 pm · 5.5 ft | Coef. 49 | 43% | Major periods 4:59 am · 5:24 pm | Medium |
| Tue 3 | 5:14 am · 5:21 pm | Low tide 4:39 am · 3.1 ft | High tide 10:48 am · 5.0 ft | Low tide 4:47 pm · 2.4 ft | High tide 11:47 pm · 5.7 ft | Coef. 54 | 32% | Major periods 5:48 am · 6:12 pm | Low |
▲ high tide · ▼ low tide · heights above chart datum (LAT). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Porto Alegre has no station of its own, so we use the tide at São Tomé (TICON-4), 26 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.
Station data attribution: 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
The sea at Porto Alegre
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.3 ft
- Significant2.7 ft
- Highest expectedHighest5.4 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.4 ft. Before heading out, expect waves of up to 5.4 ft.
Wind on the coast and offshore
The model doesn't separate offshore wind here: it's the same as on the coast.
Cross-onshore wind. The coast faces south and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Tuesday 3: 3.7 ft with a period of 10 s, from the south-southwest (slight).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
Water warmer than normal for late October (+2.7 °F).
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
Water temperature →Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:06 pm (local time).
Surf in Porto Alegre today
Surf today
Fair- 2.0–3.1 ft surf at the shore, a fun size for most surfers
- 2.7 ft swell at 7 s from the south-southwest, short: weak, messy waves
- Almost no wind (4 mph): glassy water
- Rising tide (high tide at 4:59 pm)
- Light: First light 4:53 am · sunrise 5:14 am · sunset 5:21 pm · last light 5:42 pm
- Tide: high 4:20 am (6.6 ft), low 10:38 am (1.0 ft), high 4:59 pm (6.0 ft) and low 10:47 pm (1.7 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
- Water at 82.0 °F–83.7 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 56 kJ · Low power
Today’s surf at a glance
The best window, 12:00 pm to 1:00 pm, has a good size and glassy water, though with a short-period swell. 6:00 am to 9:00 am can also work, with a good size and glassy water, though with a short-period swell.
An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.
Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.
Diving in Porto Alegre today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (4:59 pm): little current from 4:40 pm to 5:20 pm
- 2.8 ft swell at 7 s from the south-southwest: some surge on the bottom
- Light onshore wind (6 mph)
- 0.4 mph current toward the south, weak (model)
- Daylight
- Slack water today: high tide 4:20 am (4:00–4:40 am), low tide 10:38 am (10:20–11:00 am), high tide 4:59 pm (4:40–5:20 pm) and low tide 10:47 pm (10:30–11:10 pm)
- Likely visibility: good. Swell (up to 3.1 ft at 5 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 82.0–83.7 °F: a shorty or a rash guard.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 5:42 pm. Waning gibbous (92%), rising at 7:43 pm: a bright night.
Your diving day at a glance
The best window, 4:00 pm to 5:20 pm, combines slack water at high tide, light wind and weak current.
Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.
Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.
Dive sites, wrecks and dive shops nearby
We have no dive sites, dive shops or wrecks on record within 12 mi of Porto Alegre.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Sites: © OpenStreetMap contributors (ODbL).
Weather in Porto Alegre
Now in Porto Alegre
- Low / high
- 80 / 82 °F
- Rain
- 0.21 in · 100%
- Clouds
- 75%
- Humidity
- 78%
- Dew pointDew point
- 73 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 27
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady · now Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Steady now (−0.02 inHg in 3 hours). It barely changes over the next 48 hours. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.
Today, hour by hourHour by hour
Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Light drizzle | Overcast | Light drizzle | Partly cloudy | Drizzle | Drizzle | Light drizzle | Overcast |
| Temperature | 81° | 80° | 81° | 82° | 82° | 80° | 82° | 82° |
| Wind (mph) | 11 SW | 8 W | 4 WSW | 4 WNW | 4 SW | 5 WSW | 6 SW | 5 S |
| Gusts | 13 | 12 | 7 | 6 | 6 | 8 | 9 | 9 |
| Waves | 3.4 ft | 3.3 ft | 3.2 ft | 3.1 ft | 3.0 ft | 3.0 ft | 2.9 ft | 2.8 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.03 in | 0.02 in | 0.00 in | 0.00 in |
- 12:00 am 80° 5 SW 2.7 ft
- 3:00 am 80° 7 S 2.7 ft
- 6:00 am 80° 6 S 2.6 ft
- 9:00 am 81° 5 S 2.6 ft
- 12:00 pm 81° 8 S 2.6 ft
- 3:00 pm 81° 9 SSW 2.6 ft
- 6:00 pm 81° 10 SSW 2.6 ft
- 9:00 pm 82° 8 SSW 2.6 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 80 / 82 °F | 11 mph WSW | 3.4 ft | 4:20 am · 4:59 pm | |
| Thu 29 | 80 / 82 °F | 10 mph SSW | 2.7 ft | 5:05 am · 5:51 pm | |
| Fri 30 | 77 / 81 °F | 10 mph SSW | 3.4 ft | 5:56 am · 6:52 pm | |
| Sat 31 | 78 / 82 °F | 7 mph SSW | 3.4 ft | 6:54 am · 8:04 pm | |
| Sun 1 | 81 / 82 °F | 8 mph SSE | 3.1 ft | 8:03 am · 9:25 pm | |
| Mon 2 | 81 / 83 °F | 9 mph S | 3.3 ft | 9:26 am · 10:43 pm | |
| Tue 3 | 79 / 81 °F | 11 mph S | 3.7 ft | 10:48 am · 11:47 pm | |
| Wed 4 | 79 / 82 °F | 8 mph S | 3.7 ft | 11:57 am | |
| Thu 5 | 79 / 82 °F | 9 mph S | 3.4 ft | 12:37 am · 12:54 pm | |
| Fri 6 | 81 / 82 °F | 7 mph SSW | 3.0 ft | 1:19 am · 1:41 pm | |
| Sat 7 | 80 / 82 °F | 7 mph SW | 2.8 ft | 1:54 am · 2:23 pm | |
| Sun 8 | 78 / 82 °F | 10 mph SSW | 2.8 ft | 2:25 am · 3:00 pm | |
| Mon 9 | 79 / 81 °F | 9 mph SSW | 3.3 ft | 2:55 am · 3:35 pm | |
| Tue 10 | 80 / 82 °F | 9 mph SSW | 3.3 ft | 3:24 am · 4:09 pm |
- Thu 29 Light drizzle 80° / 82° 2.7 ft
- Fri 30 Light showers 77° / 81° 3.4 ft
- Sat 31 Light showers 78° / 82° 3.4 ft
- Sun 1 Light drizzle 81° / 82° 3.1 ft
- Mon 2 Drizzle 81° / 83° 3.3 ft
- Tue 3 Drizzle 79° / 81° 3.7 ft
- Wed 4 Drizzle 79° / 82° 3.7 ft
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
- The models Partly agree · medium confidence: unsure about rain today. See the models →
- Outlook Next few weeks, compared with normal: a bit warmer, normal rain and a slightly warmer sea. See the outlook →
- Normal Today, warmer than normal for late October (+2.6 °F; normal high: 80 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:06 pm (local time).
The sun in Porto Alegre
Sunrise and sunset
- First light 4:28 am
- Full dark 6:07 pm
- Civil dawn 4:53 am
- Civil dusk 5:42 pm
- Solar noon 11:18 am (77° high)
- Daylight 12 h 7 min (+0 min)
- Evening golden hour 4:53 pm
- Full dark 6:07 pm
Golden hour and the day-night map
Today the sun is 92,360,305 mi away and looks 32′ 11″ across.
The moon in Porto Alegre
Moon phase and position
Today the moon is 226,451 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: medium- 12:26–2:26 pm Major · the moon passes underfoot · high activity
- 6:39–7:39 am Minor · moonset · medium activity
- 7:13–8:13 pm Minor · moonrise · medium activity
According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.
Upcoming moon phases
2026 moon calendar →- Last quarter Sun, Nov 1 · 8:29 pmNov 1 in 4 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 2:54 pmNov 24 in 27 days
Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.
Where to fish in Porto Alegre
Piers, ramps and tackle shops nearby
We have no piers, boat ramps or tackle shops on record within 9.3 mi of Porto Alegre.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Deepens quicklyThe bottom deepens quickly: 33 ft of water 1,000 ft from shore. It reaches 164 ft at 0.3 mi.
From the shoreline (550 ft from Porto Alegre) out to sea, heading south.
How far from shore
- 16 ft deep950 ft
- 33 ft deep1,000 ft
- 66 ft deep1,150 ft
- 164 ft deep0.3 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 1,000 ft from shore: a good cast reaches deep water. Current and surf hit harder here.
- Swimming. The water gets deeper little by little, but a few dozen yards out you can no longer stand.
- Diving. Shore diving works here: 33 ft at 1,000 ft and 66 ft at 1,150 ft from shore.
Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves). The profile is turned slightly from the coast so it does not run into an island or a headland.
Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.
Tides near Porto AlegreTides nearby
- Água-Côco1.4 mi
- Dona Augusta8.1 mi
- Micondo14 mi
- Ribeira Afonso16 mi
- Santa Catarina17 mi
- Água Izé19 mi
- Nova Olinda20 mi
- Riboque Santana20 mi
- Ponta Figo22 mi
- Rosema22 mi
Porto Alegre at a glance
- Town or city of about 795 people. Coordinates: 0.034° N, 6.534° E.
- It is 25 mi southwest of São Tomé, the main place in São Tomé Island. The sun rises 1 min later and sets 1 min later than in São Tomé.
- The nearest tide station, São Tomé, is 26 mi to the northeast.
- Its coast faces south.
- Beaches and harbors nearby: Praia Bungá (0.1 mi), Praia Simão Sàdó (0.4 mi), Praia Dom Gái (0.4 mi), Praia Istangá (0.6 mi).
Questions about Porto AlegreQuestions
What time is high tide today in Porto Alegre?
Today in Porto Alegre there are high tides at 4:20 am (6.6 ft) and 4:59 pm (6.0 ft) and low tides at 10:38 am and 10:47 pm. Tide coefficient 100.
What time is sunset today in Porto Alegre?
At 5:21 pm. There is light until the end of civil twilight, at 5:42 pm.
What time is sunrise tomorrow in Porto Alegre?
At 5:14 am. First light comes at 4:28 am.
What phase is the moon today?
Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 7:03 am.
When are the next spring tides?
From October 26 to 28, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Minor 6:39–7:39 am, Major 12:26–2:26 pm, Minor 7:13–8:13 pm. Today's activity is medium.
What's the weather like today in Porto Alegre?
Drizzle, from 80 °F to 82 °F, with a light breeze from the southwest (4 mph) and a 100% chance of rain.
How is the sea today in Porto Alegre?
Slight (Douglas 3): 2.7 ft waves with a period of 8.8 s from the south-southwest. The water is 82.9 °F.
When is the best time to visit Porto Alegre?
The best time to visit Porto Alegre is from July to August: highs of 76 °F, barely 1 rainy day a month and 3 hours of sunshine a day.
Can I use this data for navigation?
No. These are predictions for fishing and leisure; for navigation, use the official publications.
Where this data comes from
Tide: São Tomé station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).