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

August, 2019


DateOpenMid-Day Low WaterMid-Day CloseMid-Day ReopenMid-Day Normal WaterDockSunsetLow Tide
Thu Aug 1Noon7:48 PM8:18 PM6:56 AM
-1.3
Fri Aug 2Noon7:47 PM8:17 PM7:40 AM
-1.2
Sat Aug 310:02 AM10:02 AM10:02 AM10:02 AM11:12 AM7:46 PM8:16 PM8:25 AM
-0.9
Sun Aug 410:22 AM10:22 AM10:22 AM10:22 AM11:42 AM7:45 PM8:15 PM9:10 AM
-0.5
Mon Aug 5Noon12:00 PM12:02 PM7:44 PM8:14 PM9:57 AM
0.2
Tue Aug 6Noon12:00 PM12:15 PM7:43 PM8:13 PM10:47 AM
0.9
Wed Aug 7Noon7:42 PM8:12 PM11:42 AM
1.6
Thu Aug 8Noon7:41 PM8:11 PM12:46 PM
2.2
Fri Aug 9Noon7:39 PM8:09 PM1:55 PM
2.6
Sat Aug 109:00 AM7:38 PM8:08 PM3:00 PM
2.9
Sun Aug 119:00 AM7:37 PM8:07 PM3:58 PM
2.9
Mon Aug 12Noon7:36 PM8:06 PM4:49 PM
2.9
Tue Aug 13Noon7:35 PM8:05 PM5:33 PM
2.8
Wed Aug 14Noon7:33 PM8:03 PM6:13 PM
2.7
Thu Aug 15Noon7:32 PM8:02 PM6:53 AM
-0.2
Fri Aug 16Noon7:31 PM8:01 PM7:25 AM
0.0
Sat Aug 179:00 AM9:00 AM10:12 AM7:30 PM8:00 PM7:55 AM
0.2
Sun Aug 189:00 AM9:00 AM10:30 AM7:28 PM7:58 PM8:25 AM
0.4
Mon Aug 19Noon7:27 PM7:57 PM8:55 AM
0.8
Tue Aug 20Noon7:26 PM7:56 PM9:28 AM
1.2
Wed Aug 21Noon7:24 PM7:54 PM10:04 AM
1.7
Thu Aug 22Noon7:23 PM7:53 PM10:47 AM
2.2
Fri Aug 23Noon7:21 PM7:51 PM11:42 AM
2.7
Sat Aug 249:00 AM7:20 PM7:50 PM12:52 PM
3.0
Sun Aug 259:00 AM7:19 PM7:49 PM2:03 PM
3.1
Mon Aug 26Noon7:17 PM7:47 PM3:07 PM
3.0
Tue Aug 27Noon7:16 PM7:46 PM4:02 PM
2.8
Wed Aug 28Noon7:14 PM7:44 PM4:54 PM
2.4
Thu Aug 29Noon7:13 PM7:43 PM5:44 PM
2.0
Fri Aug 30Noon7:11 PM7:41 PM6:35 PM
1.6
Sat Aug 319:00 AM6:41 PM7:10 PM7:10 PM7:40 PM7:14 AM
-0.6

CSC Open and Close Times and Tides version 2.8.1