20 (日)	06:18	11:18	16:33	23:46
	137cm	99cm	147cm	19cm
中潮 出 06:55 入 16:02 出 09:18 入 19:29

東静内（北海道）2009年12月20日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。

時刻	潮位	高低差	各ポイント
12/20 00:00	14.0	↑1.5
12/20 00:10	15.9	↑1.9
12/20 00:20	18.0	↑2.1
12/20 00:30	20.5	↑2.5
12/20 00:40	23.4	↑2.9
12/20 00:50	26.5	↑3.1
12/20 01:00	29.9	↑3.4
12/20 01:10	33.5	↑3.6
12/20 01:20	37.4	↑3.9
12/20 01:30	41.5	↑4.1
12/20 01:40	45.8	↑4.3
12/20 01:50	50.3	↑4.5
12/20 02:00	54.9	↑4.6
12/20 02:10	59.6	↑4.7
12/20 02:20	64.3	↑4.7
12/20 02:30	69.1	↑4.8
12/20 02:40	74.0	↑4.9	最大潮位差
12/20 02:50	78.8	↑4.8
12/20 03:00	83.5	↑4.7
12/20 03:10	88.2	↑4.7
12/20 03:20	92.8	↑4.6
12/20 03:30	97.3	↑4.5
12/20 03:40	101.6	↑4.3
12/20 03:50	105.7	↑4.1
12/20 04:00	109.6	↑3.9
12/20 04:10	113.3	↑3.7
12/20 04:20	116.8	↑3.5
12/20 04:30	120.0	↑3.2
12/20 04:40	122.9	↑2.9
12/20 04:50	125.6	↑2.7
12/20 05:00	128.0	↑2.4
12/20 05:10	130.0	↑2.0
12/20 05:20	131.8	↑1.8
12/20 05:30	133.3	↑1.5
12/20 05:40	134.5	↑1.2
12/20 05:50	135.4	↑0.9
12/20 06:00	136.0	↑0.6
12/20 06:10	136.3	↑0.3	満潮
12/20 06:20	136.3	0
12/20 06:30	136.1	↓-0.2
12/20 06:40	135.7	↓-0.4
12/20 06:50	135.0	↓-0.7
12/20 07:00	134.1	↓-0.9
12/20 07:10	133.0	↓-1.1
12/20 07:20	131.8	↓-1.2
12/20 07:30	130.3	↓-1.5
12/20 07:40	128.8	↓-1.5
12/20 07:50	127.1	↓-1.7
12/20 08:00	125.3	↓-1.8
12/20 08:10	123.4	↓-1.9
12/20 08:20	121.5	↓-1.9
12/20 08:30	119.6	↓-1.9
12/20 08:40	117.6	↓-2.0
12/20 08:50	115.7	↓-1.9
12/20 09:00	113.7	↓-2.0
12/20 09:10	111.8	↓-1.9
12/20 09:20	110.0	↓-1.8
12/20 09:30	108.2	↓-1.8
12/20 09:40	106.6	↓-1.6
12/20 09:50	105.0	↓-1.6
12/20 10:00	103.6	↓-1.4
12/20 10:10	102.3	↓-1.3
12/20 10:20	101.2	↓-1.1
12/20 10:30	100.2	↓-1.0
12/20 10:40	99.4	↓-0.8
12/20 10:50	98.8	↓-0.6
12/20 11:00	98.3	↓-0.5
12/20 11:10	98.1	↓-0.2	干潮
12/20 11:20	98.1	0
12/20 11:30	98.2	↑0.1
12/20 11:40	98.6	↑0.4
12/20 11:50	99.2	↑0.6
12/20 12:00	99.9	↑0.7
12/20 12:10	100.9	↑1.0
12/20 12:20	102.1	↑1.2
12/20 12:30	103.4	↑1.3
12/20 12:40	104.9	↑1.5
12/20 12:50	106.6	↑1.7
12/20 13:00	108.4	↑1.8
12/20 13:10	110.4	↑2.0
12/20 13:20	112.5	↑2.1
12/20 13:30	114.7	↑2.2
12/20 13:40	116.9	↑2.2
12/20 13:50	119.3	↑2.4
12/20 14:00	121.7	↑2.4
12/20 14:10	124.0	↑2.3
12/20 14:20	126.4	↑2.4
12/20 14:30	128.8	↑2.4
12/20 14:40	131.1	↑2.3
12/20 14:50	133.3	↑2.2
12/20 15:00	135.4	↑2.1
12/20 15:10	137.4	↑2.0
12/20 15:20	139.3	↑1.9
12/20 15:30	140.9	↑1.6
12/20 15:40	142.4	↑1.5
12/20 15:50	143.7	↑1.3
12/20 16:00	144.7	↑1.0
12/20 16:10	145.4	↑0.7
12/20 16:20	145.9	↑0.5
12/20 16:30	146.1	↑0.2	満潮
12/20 16:40	146.0	↓-0.1
12/20 16:50	145.6	↓-0.4
12/20 17:00	144.9	↓-0.7
12/20 17:10	143.9	↓-1.0
12/20 17:20	142.6	↓-1.3
12/20 17:30	140.9	↓-1.7
12/20 17:40	139.0	↓-1.9
12/20 17:50	136.7	↓-2.3
12/20 18:00	134.2	↓-2.5
12/20 18:10	131.4	↓-2.8
12/20 18:20	128.3	↓-3.1
12/20 18:30	125.0	↓-3.3
12/20 18:40	121.4	↓-3.6
12/20 18:50	117.6	↓-3.8
12/20 19:00	113.6	↓-4.0
12/20 19:10	109.5	↓-4.1
12/20 19:20	105.2	↓-4.3
12/20 19:30	100.8	↓-4.4
12/20 19:40	96.3	↓-4.5
12/20 19:50	91.7	↓-4.6
12/20 20:00	87.1	↓-4.6
12/20 20:10	82.4	↓-4.7
12/20 20:20	77.8	↓-4.6
12/20 20:30	73.1	↓-4.7
12/20 20:40	68.6	↓-4.5
12/20 20:50	64.1	↓-4.5
12/20 21:00	59.7	↓-4.4
12/20 21:10	55.4	↓-4.3
12/20 21:20	51.3	↓-4.1
12/20 21:30	47.4	↓-3.9
12/20 21:40	43.6	↓-3.8
12/20 21:50	40.0	↓-3.6
12/20 22:00	36.7	↓-3.3
12/20 22:10	33.6	↓-3.1
12/20 22:20	30.8	↓-2.8
12/20 22:30	28.2	↓-2.6
12/20 22:40	26.0	↓-2.2
12/20 22:50	24.0	↓-2.0
12/20 23:00	22.3	↓-1.7
12/20 23:10	21.0	↓-1.3
12/20 23:20	20.0	↓-1.0
12/20 23:30	19.3	↓-0.7
12/20 23:40	19.0	↓-0.3	干潮
12/20 23:50	19.0	0