Port Arthur tide times

TexasNear Port Arthur, Jefferson CountyNOAA 8770475Water level station

The tide is falling: low tide at 7:43 PM, 0.5 ft. Measured 1.65 ft at 11:42 AM, 0.40 ft above the prediction.

Now

Today, Sunday, September 20: every high and low tide, and the predicted curve through the day.

High tide5:41 AM1.5 ft
Low tide7:43 PM0.5 ft

Feet above mean lower low water. Times are Central Daylight Time. Sunrise 7:03 AM, sunset 7:15 PM.

Alerts in force

National Weather Service products for coastal flooding, storm surge, high surf and tsunami at this station’s position.

None right now. The National Weather Service issues coastal flood advisories and warnings, storm surge watches and warnings, high surf advisories and tsunami messages for water at this station.

7-day tide table

Highest tide this week 1.5 ft, Sun, Sep 20 at 5:41 AM. Lowest 0.5 ft, Sun, Sep 20 at 7:43 PM.

High and low tides at Port Arthur, TX, Central Daylight Time, feet above MLLW
Date	High and low tides				Sunrise / sunset	Moon
Sun, Sep 20 Today	High 5:41 AM 1.5 ft	Low 7:43 PM 0.5 ft			7:03 AM / 7:15 PM	Waxing gibbousRises 3:49 PM
Mon, Sep 21	High 6:01 AM 1.4 ft	Low 8:33 PM 0.5 ft			7:04 AM / 7:13 PM	Waxing gibbousRises 4:27 PM
Tue, Sep 22	High 6:11 AM 1.4 ft	Low 9:23 PM 0.5 ft			7:04 AM / 7:12 PM	Waxing gibbousRises 5:02 PM
Wed, Sep 23	High 6:10 AM 1.3 ft	Low 11:28 AM 1.2 ft	High 2:21 PM 1.3 ft	Low 10:10 PM 0.6 ft	7:05 AM / 7:11 PM	Waxing gibbousRises 5:34 PM
Thu, Sep 24	High 5:54 AM 1.3 ft	Low 11:04 AM 1.1 ft	High 3:36 PM 1.3 ft	Low 10:49 PM 0.7 ft	7:05 AM / 7:10 PM	Waxing gibbousRises 6:03 PM
Fri, Sep 25	High 5:28 AM 1.3 ft	Low 11:13 AM 0.9 ft	High 4:49 PM 1.3 ft	Low 11:21 PM 0.8 ft	7:06 AM / 7:08 PM	Waxing gibbousRises 6:32 PM
Sat, Sep 26	High 5:19 AM 1.3 ft	Low 11:36 AM 0.7 ft	High 5:51 PM 1.3 ft	Low 11:50 PM 0.9 ft	7:06 AM / 7:07 PM	Full moon 11:49 AMRises 7:02 PM

Next moon phases: full moon Sat, Sep 26, last quarter Sat, Oct 3.

Water level, last 48 hours

Measured 1.65 ft at 11:42 AM, 0.40 ft above the prediction. Highest in 48 hours: 2.31 ft at Sat 7:36 AM.

Measured
Predicted tide

Storm surge

Measured less predicted: +0.40 ft now; over 48 hours, +0.16 ft to +0.89 ft. Wind, air pressure and river flow move the water off the tide table.

Datums and records

Heights above mean lower low water (MLLW), the zero of this page and of NOAA’s charts. Tidal epoch 1983-2001.

Mean higher high water MHHW	1.04 ft
Mean high water MHW	0.99 ft
Mean diurnal tide level DTL	0.51 ft
Mean tide level MTL	0.56 ft
Mean sea level MSL	0.60 ft
Mean low water MLW	0.14 ft
Mean lower low water MLLW	0.00 ft
NAVD88 (land survey datum) NAVD88	0.37 ft
Highest water measured September 3, 2017	4.76 ft
Lowest water measured January 16, 2022	-2.86 ft
Highest astronomical tide	1.57 ft
Lowest astronomical tide	-1.12 ft

Mean range of tide 0.85 ft; great diurnal range 1.04 ft.

What this means

Heights are feet above mean lower low water (MLLW): the average of the lower of each day’s two low tides over NOAA’s 19-year tidal epoch, and the zero of US tide tables and nautical charts. A low tide below that average is printed as a negative height.

Predictions are astronomical. They account for the moon and the sun, not the weather: onshore wind, low air pressure and high river flow hold the water above the prediction, offshore wind and high pressure hold it below. The water level above measures the difference.

Spring tides, the largest ranges of the month, follow the new and full moon by a day or two. Neap tides, the smallest, follow the quarter moons.

Nearby8

The closest other NOAA tide stations, nearest first.

More for this place

Sources

Tide predictions and water levels from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS). Coastal flood, storm surge and high surf products from the National Weather Service. Station 8770475: original at NOAA.