20 (金)	04:23	09:10	14:52	21:58
	135cm	90cm	161cm	8cm
大潮 出 06:21 入 17:09 出 06:38 入 16:47

東静内（北海道）2004年02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
2/20 00:00	48.5	↑4.7
2/20 00:10	53.2	↑4.7
2/20 00:20	58.0	↑4.8
2/20 00:30	62.8	↑4.8
2/20 00:40	67.7	↑4.9
2/20 00:50	72.5	↑4.8
2/20 01:00	77.4	↑4.9
2/20 01:10	82.1	↑4.7
2/20 01:20	86.8	↑4.7
2/20 01:30	91.4	↑4.6
2/20 01:40	95.8	↑4.4
2/20 01:50	100.1	↑4.3
2/20 02:00	104.2	↑4.1
2/20 02:10	108.1	↑3.9
2/20 02:20	111.8	↑3.7
2/20 02:30	115.3	↑3.5
2/20 02:40	118.5	↑3.2
2/20 02:50	121.4	↑2.9
2/20 03:00	124.1	↑2.7
2/20 03:10	126.4	↑2.3
2/20 03:20	128.5	↑2.1
2/20 03:30	130.3	↑1.8
2/20 03:40	131.7	↑1.4
2/20 03:50	132.9	↑1.2
2/20 04:00	133.7	↑0.8
2/20 04:10	134.3	↑0.6
2/20 04:20	134.5	↑0.2	満潮
2/20 04:30	134.4	↓-0.1
2/20 04:40	134.0	↓-0.4
2/20 04:50	133.4	↓-0.6
2/20 05:00	132.5	↓-0.9
2/20 05:10	131.3	↓-1.2
2/20 05:20	129.9	↓-1.4
2/20 05:30	128.3	↓-1.6
2/20 05:40	126.6	↓-1.7
2/20 05:50	124.6	↓-2.0
2/20 06:00	122.5	↓-2.1
2/20 06:10	120.3	↓-2.2
2/20 06:20	118.0	↓-2.3
2/20 06:30	115.6	↓-2.4
2/20 06:40	113.2	↓-2.4
2/20 06:50	110.7	↓-2.5
2/20 07:00	108.3	↓-2.4
2/20 07:10	106.0	↓-2.3
2/20 07:20	103.7	↓-2.3
2/20 07:30	101.5	↓-2.2
2/20 07:40	99.4	↓-2.1
2/20 07:50	97.5	↓-1.9
2/20 08:00	95.8	↓-1.7
2/20 08:10	94.2	↓-1.6
2/20 08:20	92.9	↓-1.3
2/20 08:30	91.8	↓-1.1
2/20 08:40	90.9	↓-0.9
2/20 08:50	90.2	↓-0.7
2/20 09:00	89.9	↓-0.3	干潮
2/20 09:10	89.7	↓-0.2	干潮
2/20 09:20	89.9	↑0.2
2/20 09:30	90.3	↑0.4
2/20 09:40	91.0	↑0.7
2/20 09:50	92.0	↑1.0
2/20 10:00	93.3	↑1.3
2/20 10:10	94.8	↑1.5
2/20 10:20	96.5	↑1.7
2/20 10:30	98.5	↑2.0
2/20 10:40	100.6	↑2.1
2/20 10:50	103.0	↑2.4
2/20 11:00	105.6	↑2.6
2/20 11:10	108.3	↑2.7
2/20 11:20	111.2	↑2.9
2/20 11:30	114.2	↑3.0
2/20 11:40	117.2	↑3.0
2/20 11:50	120.4	↑3.2
2/20 12:00	123.6	↑3.2
2/20 12:10	126.8	↑3.2
2/20 12:20	130.0	↑3.2
2/20 12:30	133.1	↑3.1
2/20 12:40	136.2	↑3.1
2/20 12:50	139.2	↑3.0
2/20 13:00	142.1	↑2.9
2/20 13:10	144.9	↑2.8
2/20 13:20	147.5	↑2.6
2/20 13:30	149.9	↑2.4
2/20 13:40	152.1	↑2.2
2/20 13:50	154.1	↑2.0
2/20 14:00	155.8	↑1.7
2/20 14:10	157.2	↑1.4
2/20 14:20	158.4	↑1.2
2/20 14:30	159.3	↑0.9
2/20 14:40	159.8	↑0.5
2/20 14:50	160.0	↑0.2	満潮
2/20 15:00	159.9	↓-0.1
2/20 15:10	159.4	↓-0.5
2/20 15:20	158.5	↓-0.9
2/20 15:30	157.3	↓-1.2
2/20 15:40	155.8	↓-1.5
2/20 15:50	153.8	↓-2.0
2/20 16:00	151.6	↓-2.2
2/20 16:10	148.9	↓-2.7
2/20 16:20	145.9	↓-3.0
2/20 16:30	142.6	↓-3.3
2/20 16:40	139.0	↓-3.6
2/20 16:50	135.1	↓-3.9
2/20 17:00	130.8	↓-4.3
2/20 17:10	126.3	↓-4.5
2/20 17:20	121.6	↓-4.7
2/20 17:30	116.6	↓-5.0
2/20 17:40	111.4	↓-5.2
2/20 17:50	106.1	↓-5.3
2/20 18:00	100.6	↓-5.5
2/20 18:10	95.0	↓-5.6
2/20 18:20	89.3	↓-5.7
2/20 18:30	83.6	↓-5.7
2/20 18:40	77.8	↓-5.8	最大潮位差
2/20 18:50	72.1	↓-5.7
2/20 19:00	66.5	↓-5.6
2/20 19:10	60.9	↓-5.6
2/20 19:20	55.4	↓-5.5
2/20 19:30	50.1	↓-5.3
2/20 19:40	45.0	↓-5.1
2/20 19:50	40.1	↓-4.9
2/20 20:00	35.5	↓-4.6
2/20 20:10	31.1	↓-4.4
2/20 20:20	27.1	↓-4.0
2/20 20:30	23.4	↓-3.7
2/20 20:40	20.0	↓-3.4
2/20 20:50	17.0	↓-3.0
2/20 21:00	14.3	↓-2.7
2/20 21:10	12.1	↓-2.2
2/20 21:20	10.3	↓-1.8
2/20 21:30	8.9	↓-1.4
2/20 21:40	8.0	↓-0.9
2/20 21:50	7.5	↓-0.5	干潮
2/20 22:00	7.4	↓-0.1
2/20 22:10	7.7	↑0.3
2/20 22:20	8.5	↑0.8
2/20 22:30	9.7	↑1.2
2/20 22:40	11.3	↑1.6
2/20 22:50	13.3	↑2.0
2/20 23:00	15.7	↑2.4
2/20 23:10	18.4	↑2.7
2/20 23:20	21.5	↑3.1
2/20 23:30	24.9	↑3.4
2/20 23:40	28.6	↑3.7
2/20 23:50	32.5	↑3.9