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 +1.3 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 lower 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 +1.3 ft. for low tide and +0.0 ft. for club closure.

Estimated CSC Schedule for tide-based closure for

December, 2017


DateOpenMid-Day Low WaterMid-Day CloseMid-Day ReopenMid-Day Normal WaterDockSunsetLow Tide
Fri Dec 1Noon1:57 PM3:05 PM3:05 PM3:05 PM3:05 PM4:50 PM4:16 PM
-0.5
Sat Dec 29:00 AM2:28 PM3:23 PM3:23 PM3:23 PM3:23 PM4:49 PM5:00 PM
-1.0
Sun Dec 39:00 AM3:04 PM3:53 PM3:53 PM3:53 PM3:53 PM4:49 PM5:45 PM
-1.4
Mon Dec 4Noon3:48 PM4:19 PM4:19 PM4:49 PM6:33 PM
-1.6
Tue Dec 5Noon4:19 PM4:49 PM7:22 PM
-1.5
Wed Dec 6Noon4:19 PM4:49 PM8:14 PM
-1.3
Thu Dec 7Noon4:19 PM4:49 PM9:08 PM
-0.9
Fri Dec 8Noon4:19 PM4:49 PM10:06 PM
-0.4
Sat Dec 99:00 AM4:20 PM4:50 PM11:05 PM
0.2
Sun Dec 109:00 AM4:20 PM4:50 PM12:05 AM
0.7
Mon Dec 11Noon4:20 PM4:50 PM1:02 AM
1.1
Tue Dec 12Noon1:23 PM3:34 PM4:20 PM4:50 PM2:26 PM
1.0
Wed Dec 13Noon1:35 PM4:20 PM4:20 PM4:50 PM3:16 PM
0.5
Thu Dec 14Noon1:58 PM4:21 PM4:21 PM4:51 PM3:59 PM
0.1
Fri Dec 15Noon2:23 PM3:49 PM3:49 PM3:49 PM3:49 PM4:51 PM4:37 PM
-0.2
Sat Dec 169:00 AM2:50 PM4:05 PM4:05 PM4:05 PM4:05 PM4:51 PM5:12 PM
-0.4
Sun Dec 179:00 AM3:18 PM4:22 PM4:22 PM4:52 PM5:45 PM
-0.5
Mon Dec 18Noon3:49 PM4:22 PM4:22 PM4:52 PM6:18 PM
-0.5
Tue Dec 19Noon4:21 PM4:23 PM4:23 PM4:53 PM6:51 PM
-0.5
Wed Dec 20Noon4:23 PM4:53 PM7:25 PM
-0.4
Thu Dec 21Noon4:24 PM4:54 PM8:02 PM
-0.2
Fri Dec 22Noon4:24 PM4:54 PM8:40 PM
0.0
Sat Dec 239:00 AM4:25 PM4:55 PM9:22 PM
0.3
Sun Dec 249:00 AM4:25 PM4:55 PM10:08 PM
0.6
Mon Dec 25Noon4:26 PM4:56 PM10:59 PM
1.0
Tue Dec 26Noon4:27 PM4:57 PM11:54 PM
1.3
Wed Dec 27Noon4:27 PM4:57 PM1:28 PM
1.4
Thu Dec 28Noon12:50 PM4:03 PM4:28 PM4:58 PM2:21 PM
0.7
Fri Dec 29Noon1:02 PM2:37 PM3:48 PM4:29 PM4:29 PM4:59 PM3:11 PM
-0.1
Sat Dec 309:00 AM1:31 PM2:34 PM2:34 PM2:34 PM2:34 PM4:59 PM3:58 PM
-0.7
Sun Dec 319:00 AM2:07 PM2:59 PM2:59 PM2:59 PM2:59 PM5:00 PM4:45 PM
-1.2

CSC Tides version 2.1.3