How Tides Affect Club Operation

The South Sailing Basin, where the Cal Sailing Club launches its dinghies, has been silting in over the decades, and at very low tides the depth of water at the dock is too shallow to operate our rescue skiff. When that occurs, dinghies and windsurfing equipment cannot be used by members with a rating of Junior Skipper (in the case of dinghies) or Junior Plus Windsurfer (for windsurfing equipment) or below. Equipment may still be used by those with higher ratings who do not require the rescue skiff to be operational. You can also use the time to get your work credit out of the way, take your written or rigging tests, sail with a Senior or Cruising Skipper, or just sit on the bench and enjoy the scenery!

The following table may be used to help plan your sailing schedule, and avoid times when there is not enough water there at the dock to sail. The column headings are defined below the table.

When the tide level is below +1.5 ft., the rescue skiff may not be able to operate (times in yellow on the chart). Depending on conditions, the Day Leader may launch the low-tide skiff, which can operate to +0.0 ft. Below +0.0 ft. even the low-tide skiff cannot operate, and the club will close (times in red on the chart). 

The tide times used in generating this table are  estimates only . Many factors influence tide height which cannot easily be predicted (flow of rivers into the Bay, atmospheric pressure, etc.). It is the Day Leader's responsibility to evaluate conditions and determine club operating hours. Note that currently observed low tides at Richmond Inner Harbor are around 0.1 feet higher than predictions. You can apply this correction factor to the tide predictions for the Berkeley Marina to get an approximate idea of what the tides might actually be.

You can click on the Date and see the tide graph for that date.

This table is based on the official CSC thresholds of +1.5 ft. for low tide and +0.0 ft. for club closure.

Estimated CSC Schedule for tide-based closure for

January, 2020


DateOpenMid-Day Low WaterMid-Day CloseMid-Day ReopenMid-Day Normal WaterDockSunsetLow Tide
Wed Jan 1Noon4:30 PM5:00 PM10:46 AM
2.8
Thu Jan 2Noon4:31 PM5:01 PM11:57 AM
2.5
Fri Jan 3Noon4:32 PM5:02 PM1:02 PM
2.0
Sat Jan 49:00 AM1:28 PM2:25 PM4:32 PM5:02 PM1:56 PM
1.5
Sun Jan 59:00 AM1:00 PM4:33 PM4:33 PM5:03 PM2:42 PM
0.9
Mon Jan 6Noon1:09 PM4:34 PM4:34 PM5:04 PM3:22 PM
0.3
Tue Jan 7Noon1:29 PM3:14 PM3:14 PM3:14 PM3:14 PM5:05 PM4:00 PM
-0.2
Wed Jan 8Noon1:56 PM3:14 PM3:14 PM3:14 PM3:14 PM5:06 PM4:38 PM
-0.6
Thu Jan 9Noon2:28 PM3:34 PM3:34 PM3:34 PM3:34 PM5:07 PM5:17 PM
-1.0
Fri Jan 10Noon3:04 PM4:05 PM4:05 PM4:05 PM4:05 PM5:08 PM5:57 PM
-1.2
Sat Jan 119:00 AM3:45 PM4:39 PM4:39 PM5:09 PM6:38 PM
-1.4
Sun Jan 129:00 AM4:29 PM4:40 PM4:40 PM5:10 PM7:21 PM
-1.3
Mon Jan 13Noon4:41 PM5:11 PM8:05 PM
-1.0
Tue Jan 14Noon4:42 PM5:12 PM8:51 PM
-0.6
Wed Jan 15Noon4:43 PM5:13 PM9:27 AM
2.2
Thu Jan 16Noon4:44 PM5:14 PM10:42 AM
1.9
Fri Jan 17Noon12:00 PM12:49 PM4:45 PM5:15 PM12:00 PM
1.4
Sat Jan 189:00 AM11:31 AM3:08 PM4:46 PM5:16 PM1:13 PM
0.8
Sun Jan 199:00 AM12:04 PM4:47 PM4:47 PM5:17 PM2:17 PM
0.2
Mon Jan 20Noon12:42 PM2:15 PM4:15 PM4:48 PM4:48 PM5:18 PM3:13 PM
-0.3
Tue Jan 21Noon1:20 PM2:37 PM2:37 PM2:37 PM2:37 PM5:19 PM4:01 PM
-0.6
Wed Jan 22Noon2:00 PM3:11 PM3:11 PM3:11 PM3:11 PM5:20 PM4:45 PM
-0.8
Thu Jan 23Noon2:40 PM3:49 PM3:49 PM3:49 PM3:49 PM5:21 PM5:25 PM
-0.8
Fri Jan 24Noon3:19 PM4:29 PM4:29 PM4:29 PM4:29 PM5:23 PM6:03 PM
-0.8
Sat Jan 259:00 AM3:57 PM4:54 PM4:54 PM5:24 PM6:38 PM
-0.7
Sun Jan 269:00 AM4:36 PM4:55 PM4:55 PM5:25 PM7:12 PM
-0.5
Mon Jan 27Noon4:56 PM5:26 PM7:45 PM
-0.2
Tue Jan 28Noon4:57 PM5:27 PM8:18 PM
0.2
Wed Jan 29Noon4:58 PM5:28 PM8:52 PM
0.7
Thu Jan 30Noon4:59 PM5:29 PM9:42 AM
2.3
Fri Jan 31Noon5:00 PM5:30 PM10:45 AM
2.1

CSC Open and Close Times and Tides version 2.8.3