The Tide Chart www.thetidechart.com September 2026 · generated 3 Sep 2026, 21:46
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San Juan · September 2026 21:46 · UTC−4
Chile Region of Magallanes 53.640° S · 70.947° W

San Juan Tide Chart

Tide predictions, solunar fishing times and marine weather for San Juan, Chile — updated daily, free forever.

Falling
-0.9 m
Low in 34m
-0.9 m at 22:20
Last high tide: 0.6 m at 15:40

The water level is falling. Next low tide in 34 minutes (22:20).

07:18 18:08 Coefficient 40 · low Calculated for San Juan's local time · UTC−4

At a glance

Wind 23 kn from SW · gust 35 kn Waves — No data Fish activity Slow 2 major + 2 minor periods Air temp 3° feels like -6° Water temp 5° Sea surface Pressure 1006 hPa Rising UV index 3 Low exposure Coefficient 40 48 morning · 40 afternoon

Pick a date

September 2026

Tides

High 04:40 · 0.9 m Low 10:50 · -0.4 m High 15:40 · 0.6 m Low 22:20 · -0.9 m
High Low Daylight · 10h 50m Major Minor

H 04:40 0.9 m L 10:50 -0.4 m H 15:40 0.6 m L 22:20 -0.9 m

Interpolated estimate · FES2022 global tide model · heights referenced to Mean Sea Level · America/Santiago (UTC−4) · Why might this differ?

HAT
0.9 m
highest astronomical tide
MSL
0.0 m
mean sea level — the chart's zero
LAT
-0.9 m
lowest astronomical tide

The sun rises at 07:18 and sets at 18:08. Today brings 2 high tides and 2 low tides: high water at 04:40 (0.9 m) and 15:40 (0.6 m); low water at 10:50 (-0.4 m) and 22:20 (-0.9 m). The sun crosses the local meridian at 12:43, its highest point of the day.

Hour by hour

Interpolated heights · Thursday 3 September
HourHeightTrend
00:00 0.5 m ↗ Rising
01:00 0.5 m ↗ Rising
02:00 0.6 m ↗ Rising
03:00 0.8 m ↗ Rising
04:00 0.9 m ↗ Rising
05:00 0.9 m ↘ Falling
06:00 0.7 m ↘ Falling
07:00 0.5 m ↘ Falling
08:00 0.1 m ↘ Falling
09:00 -0.2 m ↘ Falling
10:00 -0.4 m ↘ Falling
11:00 -0.4 m ↗ Rising
HourHeightTrend
12:00 -0.3 m ↗ Rising
13:00 0.0 m ↗ Rising
14:00 0.3 m ↗ Rising
15:00 0.6 m ↗ Rising
16:00 0.6 m ↘ Falling
17:00 0.5 m ↘ Falling
18:00 0.2 m ↘ Falling
19:00 -0.2 m ↘ Falling
20:00 -0.5 m ↘ Falling
21:00 -0.8 m ↘ Falling
22:00 -0.9 m ↘ Falling
23:00 -0.8 m ↗ Rising

Sea & weather now

Conditions at San Juan right now, in station-local time.

Air temp 3°C Clear sky · feels like -6° · H 6° · L 2°
Water temp 5°C 5° to 5° today
Wind 23 kn SW · Force 6 · Strong breeze · gusts 35 kn
Humidity 71% Dew point -2°
Visibility 24 km Cloud cover 8%

Next 24 hours

temperature · wind · rain · humidity
00:00 Light drizzle 5° 16 WSW 78% 0.4 84%
02:00 Overcast 4° 13 SW 42% 0.0 79%
04:00 Fog 4° 10 WSW 81% 0.0 80%
06:00 Fog 4° 7 WSW 100% 0.0 80%
08:00 Overcast 5° 10 WSW 97% 0.0 76%
10:00 Overcast 5° 6 W 92% 0.0 79%
12:00 Mainly clear 6° 8 WSW 77% 0.0 72%
14:00 Mainly clear 6° 12 WSW 61% 0.0 69%
16:00 Fog 5° 12 WSW 86% 0.0 79%
18:00 Snow showers 4° 16 SW 87% 0.3 89%
20:00 Clear sky 3° 20 SW 55% 0.0 67%
22:00 Clear sky 3° 25 SW 15% 0.0 74%
23:00 Clear sky 2° 27 SW 0% 0.0 72%

Rain chance and millimetres per hour, then relative humidity. Scroll for the rest of the day.

Fishing barometer

1006 hPa ↗ Rising
  • Rising Very good — today Rising pressure after a low signals settling weather — fish feed confidently and this is often the best barometer window of all.
  • Stable Normal activity A steady barometer for a day or more means settled conditions and predictable, average feeding around tides and solunar peaks.
  • Falling Good at first A dropping barometer sparks a burst of feeding before the weather turns, then activity slows markedly as the front arrives.
min 997 hPa max 1009 hPa Hover, tap or arrow-key the line to read any hour.

The barometer is rising, which usually switches feeding back on: fish sense settling conditions and move to feed with confidence. A rising trend after a spell of low pressure is one of the strongest signals to get out on the water.

UV index

solar protection

UV 3

Low

Low exposure — no sun protection is needed for most people. Enjoy the water freely.

1–2 · Low
Little risk — most people need no sun protection.
3–7 · Moderate to high
Wear a hat, sunglasses and SPF 30+, and take shade around midday.
8+ · Very high to extreme
Use SPF 50+, cover up and stay out of the sun through the middle of the day.
Water temperature 5° Ranges 5° to 5° today
5°
0 h
5°
2 h
5°
4 h
5°
6 h
5°
8 h
5°
10 h
5°
12 h
5°
14 h
5°
16 h
5°
18 h
5°
20 h
5°
22 h
5°
24 h

The sea surface holds around 5.0° today, moving between 4.9° and 5.0°. Water temperature sets the pace of fish metabolism, so even a small shift can change where fish hold and how actively they feed.

Outlook

Next 7 days
  • Thu 3 Mainly clear 6°/2° 27 kn
  • Fri 4 Clear sky 5°/1° 25 kn
  • Sat 5 Overcast 7°/1° 6 kn
  • Sun 6 Clear sky 8°/3° 13 kn
  • Mon 7 Overcast 7°/5° 16 kn
  • Tue 8 Overcast 7°/4° 14 kn
  • Wed 9 Snow 4°/1° 11 kn

Air quality

Fair · EAQI 23

Air quality is fair. Fine for outdoor activity; unusually sensitive people should watch for symptoms.

O₃ Ozone Fair 52.5µg/m³ Forms in sunlight; can irritate airways at high levels. Bar is scaled to 130 µg/m³, where the "poor" band starts.
PM10 Good 1.3µg/m³ Coarse particles from dust, sea spray and traffic. Bar is scaled to 50 µg/m³, where the "poor" band starts.
PM2.5 Good 0.7µg/m³ Fine particles that reach deep into the lungs. Bar is scaled to 25 µg/m³, where the "poor" band starts.

Bands follow the European Air Quality Index; the day's index is its worst hour, each pollutant its daily mean. Air quality from CAMS.

Weather & marine data by Open-Meteo.com (CC BY 4.0) · times are San Juan local time.

Tidal coefficient · September

Bigger coefficients mean larger tides and stronger currents
Thursday 3 September 40 Low

Morning 48 · afternoon 40

Month range 20 – 104

Heights this month span -1.0 m to 1.0 m above the chart datum

Biggest tides: 9–12 Sep (coef 104) · Quietest stretch: 18–19 Sep (coef 20)

September 2026 — hover, tap or arrow-key a bar to read that day

Very high High Average Low

A larger coefficient means a wider gap between high and low water, so the strongest currents run along the sea bed. Tidal range also shifts with the weather — check the wind and swell before you head out.

Solunar

Feeding windows from the moon's transit, rise and set — the free solunar rating for San Juan.

Best fishing times today

Slow

Solunar theory rates today a slow day for fishing at San Juan — plan around the major and minor periods below.

Minor Average activity

01:33 – 02:33

Moonrise

Major Peak activity

04:34 – 06:34

Moon overhead (lunar transit)

Overlaps sunrise or sunset
Minor Average activity

08:27 – 09:27

Moonset

Major Peak activity

17:04 – 19:04

Moon underfoot (opposing transit)

Overlaps sunrise or sunset
Major period Minor period Daylight

Major periods track the moon's transit and opposing transit and run about two hours; minor periods open at moonrise and moonset and last about an hour. When a period lands on sunrise or sunset, activity climbs higher still — and that overlap happens today.

Moon

Thursday 3 September
Last quarter 58% illuminated · 21.4 days old Moonrise 02:03 · Moonset 08:57 · transit 05:34 Visible for 6h 54m
rise 02:03 · 45° NE set 08:57 · 317° NW transit 05:34
04 SEP Last Quarter 03:51 tomorrow
11 SEP New Moon 00:26 in 8 days
18 SEP First Quarter 17:43 in 15 days
26 SEP Full Moon 13:49 in 23 days

Planner

When to go this week, and which days of September are worth the drive.

Bite windows

Thursday 3 September

Fish feed hardest when the water starts moving — plan around the hour before and after each tide turn, and doubly so where a turn meets a solunar major period.

Prime window

03:40 – 05:40

Tide turn overlaps a major solunar period — the best bite of the day.

Low tide turn

09:50 – 11:50

Water bottoms out at 10:50 then starts to rise.

High tide turn

14:40 – 16:40

Water peaks at 15:40 then starts to fall.

Low tide turn

21:20 – 23:20

Water bottoms out at 22:20 then starts to rise.

Best days in September

Ranked by tidal coefficient — pick a day to load it.

Quietest stretch: 18–19 Sep (coef 20)

Astronomical observation · moon, sun and Earth

today, 3 September 2026
Moon Distance Earth–Moon 371,535km Angular diameter 0° 32′
Sun Distance Earth–Sun 150,891,654km Angular diameter 0° 32′

Daylight & twilight

Station local time
Golden hour, blue hour and twilight times at San Juan today, morning and evening.
LightMorningEvening
Golden hourSoft, warm light — the photographer's window 06:56 – 08:06 17:20 – 18:30
Blue hourDeep even blue just past the sun 06:43 – 06:56 18:30 – 18:43
Civil twilightBright enough to work without lights 06:43 – 07:18 18:08 – 18:43
Nautical twilightHorizon still visible at sea 06:02 – 06:43 18:43 – 19:24
Astronomical twilightThe last trace of sunlight 05:21 – 06:02 19:24 – 20:05

Lighting the Earth at this moment

21:46 UTC−4 · 3 September 2026 · equirectangular, 180°W → 180°E
Day and night world map showing where San Juan sits right now

The bright band marks where the Sun stands overhead right now; the pin is San Juan. As the Earth turns, the day-and-night line sweeps westward and this map refreshes with the local clock.

Tide table

September 2026
Tide times, heights, coefficient and fishing activity for every day of September 2026 at San Juan.
Day Moon Sun 1st tide 2nd tide 3rd tide 4th tide Coefficient Activity
1 Tue 78% illuminated · waning Sunrise07:23 Sunset18:05 03:20 0.7 m high tide 09:30 -0.7 m low tide 15:20 0.8 m high tide 21:50 -0.9 m low tide 71 · High Good
2 Wed 69% illuminated · waning Sunrise07:20 Sunset18:07 04:00 0.8 m high tide 10:10 -0.6 m low tide 15:40 0.7 m high tide 22:00 -0.9 m low tide 56 · Average Fair
3 Thu 58% illuminated · waning Sunrise07:18 Sunset18:08 04:40 0.9 m high tide 10:50 -0.4 m low tide 15:40 0.6 m high tide 22:20 -1.0 m low tide 40 · Low Slow
4 Fri 46% illuminated · waning Sunrise07:15 Sunset18:10 05:30 0.9 m high tide 11:30 -0.2 m low tide 16:00 0.5 m high tide 22:40 -0.9 m low tide 34 · Low Slow
5 Sat 35% illuminated · waning Sunrise07:13 Sunset18:12 06:30 0.8 m high tide 12:40 0.0 m low tide 16:30 0.4 m high tide 23:10 -0.9 m low tide 48 · Low Fair
6 Sun 25% illuminated · waning Sunrise08:11 Sunset19:13 00:50 -0.8 m high tide 01:00 -0.9 m low tide 08:50 0.7 m high tide 15:30 0.1 m low tide 63 · Average Good
7 Mon 15% illuminated · waning Sunrise08:08 Sunset19:15 01:00 -0.8 m low tide 10:10 0.7 m high tide 17:10 0.1 m low tide 18:30 0.1 m high tide 78 · High Good
8 Tue 8% illuminated · waning Sunrise08:06 Sunset19:17 01:50 -0.7 m low tide 03:30 -0.7 m high tide 03:50 -0.7 m low tide 11:30 0.7 m high tide 91 · Very high Excellent
9 Wed 3% illuminated · waning Sunrise08:03 Sunset19:19 05:40 -0.7 m low tide 12:40 0.8 m high tide 19:40 -0.2 m low tide 20:40 -0.2 m high tide 100 · Very high Excellent
10 Thu 0% illuminated · waning Sunrise08:01 Sunset19:20 00:20 0.0 m high tide 06:50 -0.8 m low tide 13:30 0.8 m high tide 20:10 -0.4 m low tide 104 · Very high Excellent
11 Fri 0% illuminated · waxing Sunrise07:59 Sunset19:22 01:20 0.2 m high tide 07:40 -0.8 m low tide 14:10 0.9 m high tide 20:40 -0.6 m low tide 103 · Very high Excellent
12 Sat 3% illuminated · waxing Sunrise07:56 Sunset19:24 02:10 0.4 m high tide 08:30 -0.8 m low tide 14:50 0.8 m high tide 21:10 -0.7 m low tide 96 · Very high Excellent
13 Sun 7% illuminated · waxing Sunrise07:54 Sunset19:26 03:00 0.6 m high tide 09:20 -0.8 m low tide 15:20 0.8 m high tide 21:40 -0.8 m low tide 86 · High Excellent
14 Mon 13% illuminated · waxing Sunrise07:51 Sunset19:27 03:40 0.8 m high tide 10:00 -0.7 m low tide 15:50 0.7 m high tide 22:10 -0.9 m low tide 73 · High Excellent
15 Tue 21% illuminated · waxing Sunrise07:49 Sunset19:29 04:20 0.9 m high tide 10:40 -0.6 m low tide 16:30 0.7 m high tide 22:40 -0.9 m low tide 59 · Average Good
16 Wed 29% illuminated · waxing Sunrise07:46 Sunset19:31 05:10 0.9 m high tide 11:20 -0.5 m low tide 17:00 0.6 m high tide 23:10 -0.9 m low tide 45 · Low Fair
17 Thu 39% illuminated · waxing Sunrise07:44 Sunset19:33 05:50 0.9 m high tide 12:00 -0.4 m low tide 17:20 0.5 m high tide 23:40 -0.9 m low tide 30 · Low Fair
18 Fri 48% illuminated · waxing Sunrise07:41 Sunset19:34 06:30 0.8 m high tide 12:50 -0.3 m low tide 17:10 0.4 m high tide 20 · Low Slow
19 Sat 57% illuminated · waxing Sunrise07:39 Sunset19:36 00:00 -0.8 m low tide 07:20 0.7 m high tide 13:40 -0.1 m low tide 17:20 0.3 m high tide 24 · Low Slow
20 Sun 67% illuminated · waxing Sunrise07:37 Sunset19:38 00:20 -0.7 m low tide 08:20 0.6 m high tide 14:50 0.0 m low tide 17:40 0.2 m high tide 37 · Low Fair
21 Mon 75% illuminated · waxing Sunrise07:34 Sunset19:40 00:50 -0.7 m low tide 09:30 0.6 m high tide 16:10 0.0 m low tide 18:20 0.1 m high tide 52 · Average Slow
22 Tue 83% illuminated · waxing Sunrise07:32 Sunset19:41 01:40 -0.6 m low tide 02:40 -0.6 m high tide 03:10 -0.6 m low tide 10:40 0.6 m high tide 66 · Average Good
23 Wed 90% illuminated · waxing Sunrise07:29 Sunset19:43 04:40 -0.5 m low tide 11:40 0.6 m high tide 18:30 -0.2 m low tide 20:10 -0.1 m high tide 79 · High Excellent
24 Thu 95% illuminated · waxing Sunrise07:27 Sunset19:45 05:50 -0.6 m low tide 12:30 0.7 m high tide 19:10 -0.3 m low tide 90 · Very high Excellent
25 Fri 99% illuminated · waxing Sunrise07:24 Sunset19:47 00:30 0.1 m high tide 06:50 -0.6 m low tide 13:10 0.7 m high tide 19:50 -0.5 m low tide 98 · Very high Excellent
26 Sat 100% illuminated · waxing Sunrise07:22 Sunset19:48 01:20 0.3 m high tide 07:40 -0.7 m low tide 13:50 0.7 m high tide 20:20 -0.6 m low tide 102 · Very high Excellent
27 Sun 99% illuminated · waning Sunrise07:19 Sunset19:50 02:10 0.5 m high tide 08:20 -0.7 m low tide 14:20 0.7 m high tide 20:50 -0.7 m low tide 101 · Very high Excellent
28 Mon 95% illuminated · waning Sunrise07:17 Sunset19:52 02:40 0.7 m high tide 09:00 -0.7 m low tide 14:50 0.6 m high tide 21:10 -0.8 m low tide 95 · Very high Excellent
29 Tue 89% illuminated · waning Sunrise07:14 Sunset19:54 03:20 0.9 m high tide 09:40 -0.7 m low tide 15:20 0.6 m high tide 21:40 -0.9 m low tide 85 · High Excellent
30 Wed 81% illuminated · waning Sunrise07:12 Sunset19:56 04:00 1.0 m high tide 10:20 -0.6 m low tide 15:40 0.6 m high tide 21:50 -1.0 m low tide 71 · High Good

Biggest tides: 9–12 Sep (coef 104) · Quietest stretch: 18–19 Sep (coef 20) · Morning 48 · afternoon 40. Predicted levels run between -1.0 m and 1.0 m this month.

Heights are metres above the station's chart datum, so the biggest tides can dip just below zero. Every time shown is San Juan local time, with daylight saving already applied.

Nearby

Other tide stations close to San Juan, ranked by distance.

Fishing sites near San Juan

this station in gold · nearby stations in green

Map data © OpenStreetMap contributors.

All Region of Magallanes locations

Punta Arenas Puerto Natales Porvenir Puerto Williams Bahia Fortescue Bahia Orange Cámeron Isla London Islote Pollo Puerto del Hambre Puerto Percy Puerto Williams Puerto Zenteno Punta Delgada

Frequently asked questions

Tides, coefficients and fishing times for San Juan, explained.

What time is high tide in San Juan today?

High water at San Juan today is at 04:40 and 15:40. The full list of high and low tide times is in the table above and refreshes every day.

Is today a good day to fish in San Juan?

Based on solunar theory the fishing rating today is Slow. The strongest windows are the major periods around the lunar transit, which often line up with sunrise and sunset.

What is the tidal coefficient and why does it matter?

The coefficient runs from 0 to 120 and measures the tidal range — today it is 40 (Low). Higher numbers mean stronger currents and a bigger gap between high and low water, which matters for fishing, diving and boating.

When are sunrise and sunset in San Juan today?

The sun rises at 07:18 and sets at 18:08 local time, giving 10h 50m of daylight.

What is the water temperature in San Juan today?

The sea surface at San Juan is around 5.0°C right now. Water temperature sets the pace of fish metabolism, so the hourly strip above is worth a glance — even a small shift can change where fish hold and how actively they feed.

Data: Open-Meteo (CC BY 4.0) · CAMS · OpenStreetMap · GeoNames (CC BY 4.0) · FES2022 — CNES/AVISO/LEGOS · IP geolocation by DB-IP (CC BY 4.0)

Estimates for planning only — not for navigation or safety-critical use. · www.thetidechart.com/cl/region-of-magallanes/san-juan