The Tide Chart www.thetidechart.com September 2026 · generated 4 Sep 2026, 09:09
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Ko Chang · September 2026 09:09 · UTC+7
Thailand Trat 12.104° N · 102.352° E

Ko Chang Tide Chart

Tide predictions, solunar fishing times and marine weather for Ko Chang, Thailand — updated daily, free forever.

Rising
0.1 m
High in 7h 11m
0.6 m at 16:20
Last low tide: -0.6 m at 01:20

The water level is rising. Next high tide in 7 h 11 min (16:20).

06:00 18:19 Coefficient 31 · low Calculated for Ko Chang's local time · UTC+7

At a glance

Wind 9 kn from W · gust 13 kn Waves 0.6 m from WSW · 5 s Fish activity Slow 2 major + 2 minor periods Air temp 28° feels like 32° Water temp 29° Sea surface Pressure 1011 hPa Rising UV index 9 Very high exposure Coefficient 31 39 morning · 31 afternoon

Pick a date

September 2026

Tides

Low 01:20 · -0.6 m High 16:20 · 0.6 m
High Low Daylight · 12h 19m Major Minor

L 01:20 -0.6 m H 16:20 0.6 m

Interpolated estimate · FES2022 global tide model · heights referenced to Mean Sea Level · Asia/Bangkok (UTC+7) · Why might this differ?

HAT
0.6 m
highest astronomical tide
MSL
0.0 m
mean sea level — the chart's zero
LAT
-0.6 m
lowest astronomical tide

The sun rises at 06:00 and sets at 18:19. Today brings 1 high tide and 1 low tide: high water at 16:20 (0.6 m); low water at 01:20 (-0.6 m). The sun crosses the local meridian at 12:09, its highest point of the day.

Hour by hour

Interpolated heights · Friday 4 September
HourHeightTrend
00:00 -0.3 m ↘ Falling
01:00 -0.5 m ↘ Falling
02:00 -0.6 m ↗ Rising
03:00 -0.5 m ↗ Rising
04:00 -0.5 m ↗ Rising
05:00 -0.4 m ↗ Rising
06:00 -0.3 m ↗ Rising
07:00 -0.2 m ↗ Rising
08:00 -0.1 m ↗ Rising
09:00 0.1 m ↗ Rising
10:00 0.2 m ↗ Rising
11:00 0.3 m ↗ Rising
HourHeightTrend
12:00 0.4 m ↗ Rising
13:00 0.5 m ↗ Rising
14:00 0.6 m ↗ Rising
15:00 0.6 m ↗ Rising
16:00 0.6 m ↗ Rising
17:00 0.6 m ↘ Falling
18:00 0.6 m ↘ Falling
19:00 0.6 m ↘ Falling
20:00 0.5 m ↘ Falling
21:00 0.4 m ↘ Falling
22:00 0.4 m ↘ Falling
23:00 0.4 m ↘ Falling

Sea & weather now

Conditions at Ko Chang right now, in station-local time.

Air temp 28°C Light showers · feels like 32° · H 30° · L 26°
Water temp 29°C 29° to 29° today
Wind 9 kn W · Force 3 · Gentle breeze · gusts 13 kn
Swell 0.6 m WSW · 5 s period
Humidity 86% Dew point 25°
Visibility 6 km Cloud cover 100%

Next 24 hours

temperature · wind · rain · humidity
00:00 Light drizzle 27° 6 SSW 98% 0.2 82%
02:00 Light drizzle 27° 8 WSW 100% 0.4 84%
04:00 Light showers 26° 9 W 100% 1.9 87%
06:00 Light showers 26° 8 W 100% 1.7 87%
08:00 Light showers 27° 9 W 100% 2.1 86%
10:00 Drizzle 28° 9 W 97% 0.9 84%
12:00 Overcast 29° 10 W 93% 0.0 75%
14:00 Overcast 30° 9 WSW 63% 0.0 70%
16:00 Partly cloudy 29° 8 SW 16% 0.0 73%
18:00 Overcast 28° 5 S 17% 0.0 80%
20:00 Light drizzle 27° 6 S 39% 0.1 83%
22:00 Overcast 27° 6 S 71% 0.0 81%
23:00 Drizzle 27° 7 SW 80% 0.5 81%

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

Fishing barometer

1011 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 1008 hPa max 1011 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 9

Very high

Very high exposure — unprotected skin burns quickly. Cover up, reapply sunscreen often and keep out of the midday sun.

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 29° Ranges 29° to 29° today
29°
0 h
29°
2 h
29°
4 h
29°
6 h
29°
8 h
29°
10 h
29°
12 h
29°
14 h
29°
16 h
29°
18 h
29°
20 h
29°
22 h
29°
24 h

The sea surface holds around 29.2° today, moving between 29.1° and 29.3°. 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
  • Fri 4 Overcast 30°/26° 10 kn
  • Sat 5 Overcast 30°/26° 12 kn
  • Sun 6 Light showers 29°/26° 11 kn
  • Mon 7 Light showers 28°/26° 12 kn
  • Tue 8 Light showers 28°/26° 11 kn
  • Wed 9 Drizzle 28°/26° 10 kn
  • Thu 10 Light showers 26°/25° 13 kn

Air quality

Fair · EAQI 25

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

O₃ Ozone Good 49.6µg/m³ Forms in sunlight; can irritate airways at high levels. Bar is scaled to 130 µg/m³, where the "poor" band starts.
PM10 Good 13.4µg/m³ Coarse particles from dust, sea spray and traffic. Bar is scaled to 50 µg/m³, where the "poor" band starts.
PM2.5 Good 8.0µg/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 Ko Chang local time.

Tidal coefficient · September

Bigger coefficients mean larger tides and stronger currents
Friday 4 September 31 Low

Morning 39 · afternoon 31

Month range 20 – 104

Heights this month span -0.9 m to 0.8 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.

Swell

From WSW (241°) · 4.6 s period
Most frequent waves 0.3 m About half the significant height — what you will see most of the time.
Significant height 0.6 m The standard forecast figure — roughly 1 wave in 7 runs higher, on a 4.6 second period.
Maximum waves 1.3 m The odd crest reaches this — allow for it before heading into exposed water.
Swell height 0 – 1.0 m scale 00:00 · 06:00 · 12:00 · 18:00 · 24:00
0 h 0.6 m 4 s WSW
2 h 0.6 m 4 s WSW
4 h 0.6 m 4 s WSW
6 h 0.7 m 4 s WSW
8 h 0.7 m 5 s WSW
10 h 0.6 m 5 s WSW
12 h 0.6 m 5 s WSW
14 h 0.6 m 5 s WSW
16 h 0.6 m 4 s WSW
18 h 0.7 m 4 s WSW
20 h 0.6 m 4 s WSW
22 h 0.6 m 4 s SW
24 h 0.6 m 4 s SW

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 Ko Chang.

Best fishing times today

Slow

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

Major Peak activity

04:32 – 06:32

Moon overhead (lunar transit)

Overlaps sunrise or sunset
Minor Average activity

11:41 – 12:41

Moonset

Major Peak activity

17:02 – 19:02

Moon underfoot (opposing transit)

Overlaps sunrise or sunset
Minor Average activity

23:23 – 00:23

Moonrise

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

Friday 4 September
Last quarter 52% illuminated · 22.0 days old Moonrise 23:53 · Moonset 12:11 · transit 05:32 Visible for 12h 19m
rise 23:53 · 62° ENE set 12:11 · 298° WNW transit 05:32
04 SEP Last Quarter 14:51 today
11 SEP New Moon 10:26 in 7 days
19 SEP First Quarter 03:43 in 15 days
26 SEP Full Moon 23:49 in 22 days

Planner

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

Bite windows

Friday 4 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.

Low tide turn

00:20 – 02:20

Water bottoms out at 01:20 then starts to rise.

Prime window

15:20 – 17:20

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

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, 4 September 2026
Moon Distance Earth–Moon 370,592km Angular diameter 0° 32′
Sun Distance Earth–Sun 150,870,088km Angular diameter 0° 32′

Daylight & twilight

Station local time
Golden hour, blue hour and twilight times at Ko Chang today, morning and evening.
LightMorningEvening
Golden hourSoft, warm light — the photographer's window 05:47 – 06:28 17:51 – 18:32
Blue hourDeep even blue just past the sun 05:38 – 05:47 18:32 – 18:40
Civil twilightBright enough to work without lights 05:38 – 06:00 18:19 – 18:40
Nautical twilightHorizon still visible at sea 05:13 – 05:38 18:40 – 19:05
Astronomical twilightThe last trace of sunlight 04:48 – 05:13 19:05 – 19:30

Lighting the Earth at this moment

09:09 UTC+7 · 4 September 2026 · equirectangular, 180°W → 180°E
Day and night world map showing where Ko Chang sits right now

The bright band marks where the Sun stands overhead right now; the pin is Ko Chang. 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 Ko Chang.
Day Moon Sun 1st tide 2nd tide 3rd tide 4th tide Coefficient Activity
1 Tue 83% illuminated · waning Sunrise06:00 Sunset18:21 03:20 0.1 m high tide 09:30 -0.1 m low tide 15:20 0.3 m high tide 23:10 -0.3 m low tide 77 · High Fair
2 Wed 73% illuminated · waning Sunrise06:00 Sunset18:20 04:30 0.0 m high tide 07:40 0.0 m low tide 15:30 0.4 m high tide 63 · Average Slow
3 Thu 63% illuminated · waning Sunrise06:00 Sunset18:19 00:10 -0.5 m low tide 15:50 0.6 m high tide 47 · Low Fair
4 Fri 52% illuminated · waning Sunrise06:00 Sunset18:19 01:20 -0.6 m low tide 16:20 0.6 m high tide 31 · Low Slow
5 Sat 40% illuminated · waning Sunrise06:00 Sunset18:18 02:30 -0.7 m low tide 16:50 0.7 m high tide 42 · Low Fair
6 Sun 29% illuminated · waning Sunrise06:00 Sunset18:17 03:50 -0.7 m low tide 17:20 0.8 m high tide 57 · Average Fair
7 Mon 19% illuminated · waning Sunrise06:00 Sunset18:17 05:10 -0.8 m low tide 18:00 0.7 m high tide 72 · High Fair
8 Tue 11% illuminated · waning Sunrise06:00 Sunset18:16 06:10 -0.9 m low tide 18:50 0.7 m high tide 86 · High Fair
9 Wed 5% illuminated · waning Sunrise06:00 Sunset18:15 07:00 -0.8 m low tide 20:30 0.6 m high tide 97 · Very high Excellent
10 Thu 1% illuminated · waning Sunrise06:00 Sunset18:15 07:40 -0.8 m low tide 23:30 0.5 m high tide 103 · Very high Excellent
11 Fri 0% illuminated · waxing Sunrise06:00 Sunset18:14 08:10 -0.6 m low tide 15:50 0.2 m high tide 18:40 0.2 m low tide 104 · Very high Excellent
12 Sat 1% illuminated · waxing Sunrise05:59 Sunset18:13 01:00 0.4 m high tide 08:30 -0.4 m low tide 15:10 0.2 m high tide 20:30 0.0 m low tide 100 · Very high Excellent
13 Sun 5% illuminated · waxing Sunrise05:59 Sunset18:13 02:10 0.3 m high tide 08:30 -0.3 m low tide 15:00 0.3 m high tide 21:30 -0.2 m low tide 91 · Very high Excellent
14 Mon 11% illuminated · waxing Sunrise05:59 Sunset18:12 03:20 0.1 m high tide 08:20 -0.1 m low tide 14:50 0.3 m high tide 22:20 -0.4 m low tide 79 · High Fair
15 Tue 18% illuminated · waxing Sunrise05:59 Sunset18:11 04:50 0.1 m high tide 07:20 0.0 m low tide 14:40 0.4 m high tide 23:00 -0.5 m low tide 65 · Average Fair
16 Wed 26% illuminated · waxing Sunrise05:59 Sunset18:11 14:40 0.5 m high tide 23:50 -0.6 m low tide 51 · Average Slow
17 Thu 35% illuminated · waxing Sunrise05:59 Sunset18:10 15:10 0.6 m high tide 36 · Low Fair
18 Fri 44% illuminated · waxing Sunrise05:59 Sunset18:09 00:40 -0.6 m low tide 15:30 0.6 m high tide 23 · Low Slow
19 Sat 53% illuminated · waxing Sunrise05:59 Sunset18:08 01:40 -0.6 m low tide 16:00 0.6 m high tide 20 · Low Slow
20 Sun 63% illuminated · waxing Sunrise05:59 Sunset18:08 02:50 -0.6 m low tide 16:30 0.6 m high tide 32 · Low Fair
21 Mon 72% illuminated · waxing Sunrise05:59 Sunset18:07 03:50 -0.6 m low tide 17:10 0.5 m high tide 46 · Low Fair
22 Tue 80% illuminated · waxing Sunrise05:59 Sunset18:06 04:50 -0.6 m low tide 17:40 0.5 m high tide 60 · Average Fair
23 Wed 87% illuminated · waxing Sunrise05:59 Sunset18:06 05:40 -0.6 m low tide 18:30 0.4 m high tide 74 · High Fair
24 Thu 93% illuminated · waxing Sunrise05:59 Sunset18:05 06:20 -0.6 m low tide 20:00 0.3 m high tide 86 · High Good
25 Fri 97% illuminated · waxing Sunrise05:59 Sunset18:04 06:50 -0.5 m low tide 15:00 0.2 m high tide 18:50 0.2 m low tide 23:30 0.2 m high tide 95 · Very high Excellent
26 Sat 100% illuminated · waxing Sunrise05:59 Sunset18:04 07:10 -0.4 m low tide 14:20 0.2 m high tide 19:40 0.0 m low tide 101 · Very high Excellent
27 Sun 100% illuminated · waning Sunrise05:59 Sunset18:03 01:20 0.2 m high tide 07:40 -0.2 m low tide 14:00 0.2 m high tide 20:20 -0.2 m low tide 102 · Very high Excellent
28 Mon 97% illuminated · waning Sunrise05:59 Sunset18:02 02:30 0.2 m high tide 08:00 -0.1 m low tide 13:40 0.3 m high tide 21:10 -0.4 m low tide 98 · Very high Excellent
29 Tue 92% illuminated · waning Sunrise05:59 Sunset18:02 03:50 0.2 m high tide 07:20 0.1 m low tide 13:40 0.4 m high tide 22:00 -0.6 m low tide 89 · High Good
30 Wed 85% illuminated · waning Sunrise05:59 Sunset18:01 14:00 0.6 m high tide 22:50 -0.7 m low tide 77 · High Fair

Biggest tides: 9–12 Sep (coef 104) · Quietest stretch: 18–19 Sep (coef 20) · Morning 39 · afternoon 31. Predicted levels run between -0.9 m and 0.8 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 Ko Chang local time, with daylight saving already applied.

Nearby

Other tide stations close to Ko Chang, ranked by distance.

Fishing sites near Ko Chang

this station in gold · nearby stations in green

Map data © OpenStreetMap contributors.

All Trat locations

Khlong Yai Laem Ngop Ko Chang Ban Hat Lek Ao Yai Ko Kut Laem Klat

Frequently asked questions

Tides, coefficients and fishing times for Ko Chang, explained.

What time is high tide in Ko Chang today?

High water at Ko Chang today is at 16:20. 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 Ko Chang?

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 31 (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 Ko Chang today?

The sun rises at 06:00 and sets at 18:19 local time, giving 12h 19m of daylight.

What is the water temperature in Ko Chang today?

The sea surface at Ko Chang is around 29.1°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 Ko Chang today?

The significant wave height at Ko Chang is currently 0.6 m with a period of 4.6 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/th/trat/ko-chang-2