Johnston Key tide times

Johnston Key, FLJohnston KeyNOAA 8724397Tuesday, October 20 · EDTTue Oct 20Predictions onlyChange station
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Today at Johnston Key the next high tide is at 10:43 PM (1.8 ft). Tomorrow's first low is at 5:57 AM.

Estimated now
0.6 ft ↑
Rising 0.3 ft per hour
Next high
10:43 PM
In 3 h 22 min · 1.8 ft
Next low
5:57 AM
In 10 h 36 min · 0.6 ft
Tide range today
1.7 ft
Neap tides Tuesday
Predictions only. No live gauge at this station.

Today's tide

Estimated curve between high and low timesNightHeight above MLLW
0 ft2 ftNOW 7:204:45 AMLow · 0.6 ft9:02 AMHigh · 2.1 ft6:11 PMLow · 0.4 ft10:43 PMHigh · 1.8 ft
Tide chart for Johnston Key, today. Low 0.6 ft at 4:45 AM, high 2.1 ft at 9:02 AM, low 0.4 ft at 6:11 PM, high 1.8 ft at 10:43 PM.

Heights and times are estimated from Key West using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Today's tides

ft above MLLW
  • Low4:45 AM0.6 ft
  • High9:02 AM2.1 ft
  • Low6:11 PM0.4 ft
  • High10:43 PM1.8 ft
Tide times for Johnston Key
TideTimeHeight
Low4:45 AM0.6 ft
High9:02 AM2.1 ft
Low6:11 PM0.4 ft
High10:43 PM1.8 ft
Sunrise
7:27 AM
First light 7:04
Sunset
6:56 PM
Last light 7:19
Moon
69%
Waxing gibbous
Tide range
1.7 ft
Mean 1.6 ft

Best windows today

Plan the week →
  • Fishing
    7:30 to 8:00 PM

    Today's best window (7:00 to 8:00 AM) has passed. Dawn light with the incoming tide around the 9:02 AM high.

  • Tidepools & shelling
    Next: Fri 7:00 to 8:00 AM
    Earlier today: 4:00 to 7:00 PM

    Today's best window (4:00 to 7:00 PM) has passed.

  • Surfing
    Next: Wed 7:00 to 9:00 AM
    Earlier today: 12:00 to 3:00 PM

    Today's best window (12:00 to 3:00 PM) has passed.

  • Shallow boat launch
    Avoid 1:00 to 9:00 PM

    Under 1.5 ft around low water. Launch before 1:00 PM.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayTue 20L4:45a0.6H9:02a2.1L6:11p0.4H10:43p1.81.7
WedOct 21L5:57a0.6H10:13a2.2L6:51p0.4H11:11p1.91.8
ThuOct 22L6:53a0.5H11:12a2.2L7:25p0.4H11:39p2.11.8
FriOct 23L7:41a0.4H12:05p2.2L7:56p0.41.9
SatOct 24H12:08a2.3L8:25a0.2H12:54p2.2L8:27p0.42.1
SunOct 25H12:39a2.5L9:08a0.1H1:43p2.1L8:58p0.42.3
MonOct 26H1:12a2.6L9:52a0.0H2:31p2.0L9:30p0.42.6

King tides Oct 26 to Oct 31. The year's highest tides at this station, from our scan of NOAA predictions. About king tides

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8724397.

Nearby stations

Currents

Loggerhead Key, East of

  • Slack12:27 AM
  • Max flood3:39 AM 0.2 kn
  • Slack6:23 AM
  • Max ebb10:41 AM 0.2 kn
  • Slack2:13 PM
  • Max flood4:54 PM 0.1 kn
  • Slack8:14 PM
  • Max ebb11:21 PM 0.1 kn

Current predictions for Loggerhead Key, East of, 11 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Key West
Live gauge
None
Coordinates
24.710° N, 81.593° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8724397

About the tides at Johnston Key

Johnston Key has a mixed tide. The two daily highs, and especially the two lows, can differ a lot in height. The pattern follows the reference station at Key West. The mean range is small, about 1.6 ft, so wind and pressure can matter as much as the tide itself. From the average lower low to the average higher high, the difference is 2.0 ft. The next spring tides peak on October 28, with a range of 2.8 ft. Neap tides follow today, when the range shrinks to 1.7 ft. In the next 12 months the highest predicted tide here is 2.8 ft on October 29, and the lowest is −0.3 ft on January 21.

Johnston Key is a subordinate station. NOAA predicts its tides by adjusting Key West: highs come about 206 min and lows about 338 min later than there. NOAA measured the tide here from 1973 to 1974 to set up these predictions. The nearest other station is Pumpkin Key, Bow Channel, 2 mi away, where high tide comes about 9 min earlier. For tidal currents, see Loggerhead Key, East of.

Predictions are based on Key West.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable October calendar

Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.