The Tide Chart www.thetidechart.com September 2026 · generated 3 Sep 2026, 17:43
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St. Matthew Island · September 2026 17:43 · UTC−8
Russia Chukotskiy Avtonomnyy Okrug 60.358° N · 172.715° W

St. Matthew Island Tide Chart

Tide predictions, solunar fishing times and marine weather for St. Matthew Island, Russia — updated daily, free forever.

Falling
0.1 m
Low in 17m
0.1 m at 18:00
Last high tide: 0.2 m at 13:10

The water level is falling. Next low tide in 17 minutes (18:00).

08:30 22:27 Coefficient 37 · low Calculated for St. Matthew Island's local time · UTC−8

At a glance

Wind 19 kn from SSE · gust 22 kn Waves 2.1 m from S · 7 s Fish activity Slow 2 major + 2 minor periods Air temp 9° feels like 3° Water temp 8° Sea surface Pressure 1000 hPa Steady UV index 4 Moderate exposure Coefficient 37 45 morning · 37 afternoon

Pick a date

September 2026

Tides

Low 06:40 · -0.4 m High 13:10 · 0.2 m Low 18:00 · 0.1 m High 23:40 · 0.4 m
High Low Daylight · 13h 57m Major Minor

L 06:40 -0.4 m H 13:10 0.2 m L 18:00 0.1 m H 23:40 0.4 m

Gauge station · FES2022 global tide model · heights referenced to Mean Sea Level · America/Nome (UTC−8) · Why might this differ?

HAT
0.4 m
highest astronomical tide
MSL
0.0 m
mean sea level — the chart's zero
LAT
-0.4 m
lowest astronomical tide

The sun rises at 08:30 and sets at 22:27. Today brings 2 high tides and 2 low tides: high water at 13:10 (0.2 m) and 23:40 (0.4 m); low water at 06:40 (-0.4 m) and 18:00 (0.1 m). The sun crosses the local meridian at 15:30, its highest point of the day.

Hour by hour

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

Sea & weather now

Conditions at St. Matthew Island right now, in station-local time.

Air temp 9°C Overcast · feels like 3° · H 9° · L 8°
Water temp 8°C 8° to 8° today
Wind 19 kn SSE · Force 5 · Fresh breeze · gusts 22 kn
Swell 2.1 m S · 7 s period
Humidity 91% Dew point 7°
Visibility 24 km Cloud cover 100%

Next 24 hours

temperature · wind · rain · humidity
00:00 Fog 9° 21 SSE 96% 0.0 98%
02:00 Light rain 9° 18 SSE 95% 1.7 99%
04:00 Light drizzle 9° 15 S 90% 0.1 99%
06:00 Overcast 9° 15 SSW 39% 0.0 98%
08:00 Overcast 9° 15 S 6% 0.0 95%
10:00 Overcast 9° 14 S 0% 0.0 90%
12:00 Overcast 9° 18 S 0% 0.0 95%
14:00 Overcast 8° 19 S 0% 0.0 97%
16:00 Overcast 8° 19 SSE 0% 0.0 94%
18:00 Overcast 9° 19 SSE 3% 0.0 89%
20:00 Overcast 9° 17 SE 9% 0.0 93%
22:00 Overcast 9° 19 SE 19% 0.0 95%
23:00 Overcast 9° 20 SE 29% 0.0 96%

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

Fishing barometer

1000 hPa → Stable
  • Rising Very good Rising pressure after a low signals settling weather — fish feed confidently and this is often the best barometer window of all.
  • Stable Normal activity — today 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 995 hPa max 1000 hPa Hover, tap or arrow-key the line to read any hour.

The barometer is holding steady. Expect routine feeding behaviour, with the usual peaks around tide changes and the solunar periods rather than any pressure-driven surge.

UV index

solar protection

UV 4

Moderate

Moderate exposure — wear sunglasses and apply SPF 30+ if you are out over the middle of the day.

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 8° Ranges 8° to 8° today
8°
0 h
8°
2 h
8°
4 h
8°
6 h
8°
8 h
8°
10 h
8°
12 h
8°
14 h
8°
16 h
8°
18 h
8°
20 h
8°
22 h
8°
24 h

The sea surface holds around 8.0° today, moving between 7.9° and 8.0°. 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 Overcast 9°/8° 21 kn
  • Fri 4 Light drizzle 9°/9° 20 kn
  • Sat 5 Overcast 9°/8° 16 kn
  • Sun 6 Light drizzle 9°/8° 15 kn
  • Mon 7 Overcast 9°/8° 9 kn
  • Tue 8 Overcast 9°/8° 16 kn
  • Wed 9 Partly cloudy 9°/9° 14 kn

Air quality

Fair · EAQI 26

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

O₃ Ozone Fair 57.4µg/m³ Forms in sunlight; can irritate airways at high levels. Bar is scaled to 130 µg/m³, where the "poor" band starts.
PM10 Good 9.8µg/m³ Coarse particles from dust, sea spray and traffic. Bar is scaled to 50 µg/m³, where the "poor" band starts.
PM2.5 Good 5.8µg/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 St. Matthew Island local time.

Tidal coefficient · September

Bigger coefficients mean larger tides and stronger currents
Thursday 3 September 37 Low

Morning 45 · afternoon 37

Month range 20 – 104

Heights this month span -0.5 m to 0.4 m above the chart datum

Biggest tides: 9–11 Sep (coef 104) · Quietest stretch: 17–19 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.

Swell

From S (182°) · 7.4 s period
Most frequent waves 1.0 m About half the significant height — what you will see most of the time.
Significant height 2.1 m The standard forecast figure — roughly 1 wave in 7 runs higher, on a 7.4 second period.
Maximum waves 4.1 m The odd crest reaches this — allow for it before heading into exposed water.
Swell height 0 – 3.0 m scale 00:00 · 06:00 · 12:00 · 18:00 · 24:00
0 h 2.5 m 8 s S
2 h 2.4 m 8 s S
4 h 2.4 m 8 s SSW
6 h 2.3 m 8 s SSW
8 h 2.2 m 9 s SSW
10 h 2.1 m 8 s SSW
12 h 2.0 m 8 s S
14 h 2.0 m 8 s S
16 h 2.0 m 8 s S
18 h 2.1 m 7 s S
20 h 2.2 m 7 s S
22 h 2.3 m 7 s S
24 h 2.3 m 7 s S

These figures describe the swell out in open water. Closer to the beach the waves shift with the shape of the coastline and the seabed, though in most spots they end up broadly similar.

Solunar

Feeding windows from the moon's transit, rise and set — the free solunar rating for St. Matthew Island.

Best fishing times today

Slow

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

Major Peak activity

07:38 – 09:38

Moon overhead (lunar transit)

Overlaps sunrise or sunset
Minor Average activity

18:38 – 19:38

Moonset

Major Peak activity

20:08 – 22:08

Moon underfoot (opposing transit)

Overlaps sunrise or sunset
Minor Peak activity

22:32 – 23:32

Moonrise

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 56% illuminated · 21.6 days old Moonrise 23:02 · Moonset 19:08 · transit 08:38 Visible for 20h 06m
rise 23:02 · 24° NNE set 19:08 · 335° NNW transit 08:38
03 SEP Last Quarter 23:51 today
10 SEP New Moon 19:26 in 7 days
18 SEP First Quarter 12:43 in 15 days
26 SEP Full Moon 08:49 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

05:40 – 07:40

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

High tide turn

12:10 – 14:10

Water peaks at 13:10 then starts to fall.

Low tide turn

17:00 – 19:00

Water bottoms out at 18:00 then starts to rise.

High tide turn

22:40 – 23:59

Water peaks at 23:40 then starts to fall.

Best days in September

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

Quietest stretch: 17–19 Sep (coef 20)

Astronomical observation · moon, sun and Earth

today, 3 September 2026
Moon Distance Earth–Moon 371,232km Angular diameter 0° 33′
Sun Distance Earth–Sun 150,880,952km Angular diameter 0° 32′

Daylight & twilight

Station local time
Golden hour, blue hour and twilight times at St. Matthew Island today, morning and evening.
LightMorningEvening
Golden hourSoft, warm light — the photographer's window 08:03 – 09:27 21:31 – 22:54
Blue hourDeep even blue just past the sun 07:45 – 08:03 22:54 – 23:12
Civil twilightBright enough to work without lights 07:45 – 08:30 22:27 – 23:12
Nautical twilightHorizon still visible at sea 06:47 – 07:45 23:12 – 00:13
Astronomical twilightThe last trace of sunlight 05:33 – 06:47 00:13 – 01:27

Lighting the Earth at this moment

17:43 UTC−8 · 3 September 2026 · equirectangular, 180°W → 180°E
Day and night world map showing where St. Matthew Island sits right now

The bright band marks where the Sun stands overhead right now; the pin is St. Matthew Island. 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 St. Matthew Island.
Day Moon Sun 1st tide 2nd tide 3rd tide 4th tide Coefficient Activity
1 Tue 77% illuminated · waning Sunrise08:25 Sunset22:33 04:50 -0.4 m low tide 11:10 0.1 m high tide 16:40 -0.1 m low tide 22:20 0.3 m high tide 68 · Average Good
2 Wed 67% illuminated · waning Sunrise08:28 Sunset22:30 05:40 -0.4 m low tide 12:10 0.1 m high tide 17:20 0.0 m low tide 23:00 0.3 m high tide 53 · Average Fair
3 Thu 56% illuminated · waning Sunrise08:30 Sunset22:27 06:40 -0.4 m low tide 13:10 0.2 m high tide 18:00 0.1 m low tide 23:40 0.4 m high tide 37 · Low Slow
4 Fri 44% illuminated · waning Sunrise08:33 Sunset22:24 07:30 -0.4 m low tide 14:20 0.2 m high tide 18:40 0.1 m low tide 36 · Low Slow
5 Sat 33% illuminated · waning Sunrise08:35 Sunset22:21 00:30 0.4 m high tide 08:30 -0.5 m low tide 15:30 0.1 m high tide 17:20 0.1 m low tide 51 · Average Fair
6 Sun 23% illuminated · waning Sunrise08:37 Sunset22:18 01:20 0.4 m high tide 09:30 -0.5 m low tide 16:40 0.1 m high tide 17:40 0.1 m low tide 66 · Average Good
7 Mon 14% illuminated · waning Sunrise08:40 Sunset22:15 02:20 0.3 m high tide 10:30 -0.5 m low tide 17:40 0.1 m high tide 22:30 0.1 m low tide 81 · High Good
8 Tue 7% illuminated · waning Sunrise08:42 Sunset22:12 03:20 0.3 m high tide 11:30 -0.5 m low tide 18:10 0.1 m high tide 23:50 0.0 m low tide 93 · Very high Excellent
9 Wed 2% illuminated · waning Sunrise08:45 Sunset22:09 04:30 0.2 m high tide 12:20 -0.4 m low tide 18:50 0.1 m high tide 101 · Very high Excellent
10 Thu 0% illuminated · waning Sunrise08:47 Sunset22:06 01:00 -0.1 m low tide 05:50 0.2 m high tide 13:10 -0.4 m low tide 19:20 0.2 m high tide 104 · Very high Excellent
11 Fri 1% illuminated · waxing Sunrise08:49 Sunset22:03 01:50 -0.2 m low tide 07:10 0.2 m high tide 14:00 -0.3 m low tide 20:00 0.2 m high tide 102 · Very high Excellent
12 Sat 4% illuminated · waxing Sunrise08:52 Sunset22:00 02:50 -0.3 m low tide 08:20 0.2 m high tide 14:50 -0.2 m low tide 20:30 0.2 m high tide 95 · Very high Excellent
13 Sun 8% illuminated · waxing Sunrise08:54 Sunset21:57 03:40 -0.3 m low tide 09:30 0.2 m high tide 15:40 -0.1 m low tide 21:10 0.3 m high tide 84 · High Excellent
14 Mon 15% illuminated · waxing Sunrise08:56 Sunset21:54 04:20 -0.4 m low tide 10:40 0.2 m high tide 16:30 0.0 m low tide 21:40 0.3 m high tide 71 · High Good
15 Tue 23% illuminated · waxing Sunrise08:59 Sunset21:51 05:00 -0.4 m low tide 11:40 0.2 m high tide 17:10 0.0 m low tide 22:20 0.3 m high tide 56 · Average Good
16 Wed 31% illuminated · waxing Sunrise09:01 Sunset21:47 05:40 -0.4 m low tide 12:30 0.2 m high tide 17:50 0.1 m low tide 23:00 0.3 m high tide 42 · Low Fair
17 Thu 40% illuminated · waxing Sunrise09:04 Sunset21:44 06:30 -0.4 m low tide 13:30 0.2 m high tide 18:30 0.1 m low tide 23:40 0.3 m high tide 28 · Low Slow
18 Fri 50% illuminated · waxing Sunrise09:06 Sunset21:41 07:10 -0.4 m low tide 14:20 0.2 m high tide 19:10 0.1 m low tide 20 · Low Slow
19 Sat 59% illuminated · waxing Sunrise09:08 Sunset21:38 00:20 0.3 m high tide 08:00 -0.3 m low tide 15:20 0.2 m high tide 20:10 0.1 m low tide 27 · Low Slow
20 Sun 68% illuminated · waxing Sunrise09:11 Sunset21:35 01:10 0.2 m high tide 08:50 -0.3 m low tide 16:20 0.2 m high tide 21:10 0.1 m low tide 40 · Low Fair
21 Mon 77% illuminated · waxing Sunrise09:13 Sunset21:32 01:50 0.2 m high tide 09:40 -0.3 m low tide 17:10 0.2 m high tide 22:10 0.1 m low tide 55 · Average Good
22 Tue 85% illuminated · waxing Sunrise09:16 Sunset21:29 02:50 0.2 m high tide 10:30 -0.3 m low tide 17:50 0.1 m high tide 23:10 0.0 m low tide 69 · Average Good
23 Wed 91% illuminated · waxing Sunrise09:18 Sunset21:26 03:40 0.2 m high tide 11:20 -0.3 m low tide 18:10 0.1 m high tide 82 · High Excellent
24 Thu 96% illuminated · waxing Sunrise09:20 Sunset21:23 00:00 0.0 m low tide 04:50 0.1 m high tide 12:00 -0.3 m low tide 18:20 0.1 m high tide 92 · Very high Excellent
25 Fri 99% illuminated · waxing Sunrise09:23 Sunset21:20 00:40 -0.1 m low tide 05:50 0.1 m high tide 12:40 -0.2 m low tide 18:40 0.1 m high tide 100 · Very high Excellent
26 Sat 100% illuminated · waning Sunrise09:25 Sunset21:17 01:20 -0.2 m low tide 07:10 0.1 m high tide 13:20 -0.2 m low tide 19:00 0.1 m high tide 102 · Very high Excellent
27 Sun 98% illuminated · waning Sunrise09:27 Sunset21:14 02:00 -0.3 m low tide 08:10 0.1 m high tide 14:10 -0.1 m low tide 19:30 0.2 m high tide 100 · Very high Excellent
28 Mon 94% illuminated · waning Sunrise09:30 Sunset21:10 02:50 -0.4 m low tide 09:20 0.2 m high tide 14:50 0.0 m low tide 20:10 0.2 m high tide 93 · Very high Excellent
29 Tue 88% illuminated · waning Sunrise09:32 Sunset21:07 03:30 -0.4 m low tide 10:20 0.2 m high tide 15:40 0.0 m low tide 20:50 0.3 m high tide 82 · High Excellent
30 Wed 80% illuminated · waning Sunrise09:35 Sunset21:04 04:20 -0.5 m low tide 11:20 0.2 m high tide 16:30 0.1 m low tide 21:30 0.3 m high tide 68 · Average Good

Biggest tides: 9–11 Sep (coef 104) · Quietest stretch: 17–19 Sep (coef 20) · Morning 45 · afternoon 37. Predicted levels run between -0.5 m and 0.4 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 St. Matthew Island local time, with daylight saving already applied.

Nearby

Other tide stations close to St. Matthew Island, ranked by distance.

Fishing sites near St. Matthew Island

this station in gold · nearby stations in green

Map data © OpenStreetMap contributors.

All Chukotskiy Avtonomnyy Okrug locations

Constantine Harbor, Amchitka Island Fossil River entrance Gertrude Cove, Kiska Island Kiska Harbor, Kiska Island Niyrakpak Lagoon entrance Northeast Cape Offshore St Matthew Island (GNSS Buoy) Savoonga

Frequently asked questions

Tides, coefficients and fishing times for St. Matthew Island, explained.

What time is high tide in St. Matthew Island today?

High water at St. Matthew Island today is at 13:10 and 23:40. 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 St. Matthew Island?

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 37 (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 St. Matthew Island today?

The sun rises at 08:30 and sets at 22:27 local time, giving 13h 57m of daylight.

What is the water temperature in St. Matthew Island today?

The sea surface at St. Matthew Island is around 8.0°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.

How big are the waves in St. Matthew Island today?

The significant wave height at St. Matthew Island is currently 2.1 m with a period of 7.4 s between crests. Individual sets can stack up to roughly twice that height, so allow a margin at exposed marks and anchorages.

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/ru/chukotskiy-avtonomnyy-okrug/st-matthew-island