20 (火)	03:13	09:52	16:25	21:51
	148cm	11cm	139cm	67cm
大潮 出 04:42 入 18:18 出 05:01 入 19:01 潮干狩り ◎ 07:57～11:47

東静内（北海道）2004年04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
4/20 00:00	95.3	↑3.8
4/20 00:10	99.3	↑4.0
4/20 00:20	103.2	↑3.9
4/20 00:30	107.2	↑4.0
4/20 00:40	111.1	↑3.9
4/20 00:50	115.0	↑3.9
4/20 01:00	118.8	↑3.8
4/20 01:10	122.4	↑3.6
4/20 01:20	126.0	↑3.6
4/20 01:30	129.3	↑3.3
4/20 01:40	132.4	↑3.1
4/20 01:50	135.3	↑2.9
4/20 02:00	137.9	↑2.6
4/20 02:10	140.3	↑2.4
4/20 02:20	142.3	↑2.0
4/20 02:30	144.0	↑1.7
4/20 02:40	145.4	↑1.4
4/20 02:50	146.4	↑1.0
4/20 03:00	147.1	↑0.7
4/20 03:10	147.4	↑0.3	満潮
4/20 03:20	147.3	↓-0.1
4/20 03:30	146.8	↓-0.5
4/20 03:40	145.9	↓-0.9
4/20 03:50	144.6	↓-1.3
4/20 04:00	143.0	↓-1.6
4/20 04:10	141.0	↓-2.0
4/20 04:20	138.5	↓-2.5
4/20 04:30	135.8	↓-2.7
4/20 04:40	132.7	↓-3.1
4/20 04:50	129.2	↓-3.5
4/20 05:00	125.4	↓-3.8
4/20 05:10	121.4	↓-4.0
4/20 05:20	117.1	↓-4.3
4/20 05:30	112.5	↓-4.6
4/20 05:40	107.7	↓-4.8
4/20 05:50	102.7	↓-5.0
4/20 06:00	97.6	↓-5.1
4/20 06:10	92.3	↓-5.3
4/20 06:20	87.0	↓-5.3
4/20 06:30	81.6	↓-5.4
4/20 06:40	76.2	↓-5.4
4/20 06:50	70.7	↓-5.5	最大潮位差
4/20 07:00	65.4	↓-5.3
4/20 07:10	60.1	↓-5.3
4/20 07:20	54.9	↓-5.2
4/20 07:30	49.9	↓-5.0
4/20 07:40	45.0	↓-4.9
4/20 07:50	40.4	↓-4.6
4/20 08:00	36.0	↓-4.4
4/20 08:10	31.9	↓-4.1
4/20 08:20	28.1	↓-3.8
4/20 08:30	24.6	↓-3.5
4/20 08:40	21.5	↓-3.1
4/20 08:50	18.8	↓-2.7
4/20 09:00	16.4	↓-2.4
4/20 09:10	14.4	↓-2.0
4/20 09:20	12.9	↓-1.5
4/20 09:30	11.8	↓-1.1
4/20 09:40	11.1	↓-0.7
4/20 09:50	10.8	↓-0.3	干潮
4/20 10:00	11.0	↑0.2
4/20 10:10	11.6	↑0.6
4/20 10:20	12.6	↑1.0
4/20 10:30	14.1	↑1.5
4/20 10:40	16.0	↑1.9
4/20 10:50	18.2	↑2.2
4/20 11:00	20.9	↑2.7
4/20 11:10	23.9	↑3.0
4/20 11:20	27.2	↑3.3
4/20 11:30	30.9	↑3.7
4/20 11:40	34.8	↑3.9
4/20 11:50	39.0	↑4.2
4/20 12:00	43.4	↑4.4
4/20 12:10	48.0	↑4.6
4/20 12:20	52.8	↑4.8
4/20 12:30	57.7	↑4.9
4/20 12:40	62.8	↑5.1
4/20 12:50	67.8	↑5.0
4/20 13:00	73.0	↑5.2
4/20 13:10	78.1	↑5.1
4/20 13:20	83.2	↑5.1
4/20 13:30	88.2	↑5.0
4/20 13:40	93.2	↑5.0
4/20 13:50	98.0	↑4.8
4/20 14:00	102.6	↑4.6
4/20 14:10	107.1	↑4.5
4/20 14:20	111.3	↑4.2
4/20 14:30	115.3	↑4.0
4/20 14:40	119.0	↑3.7
4/20 14:50	122.5	↑3.5
4/20 15:00	125.7	↑3.2
4/20 15:10	128.5	↑2.8
4/20 15:20	131.0	↑2.5
4/20 15:30	133.1	↑2.1
4/20 15:40	134.9	↑1.8
4/20 15:50	136.4	↑1.5
4/20 16:00	137.4	↑1.0
4/20 16:10	138.1	↑0.7
4/20 16:20	138.5	↑0.4	満潮
4/20 16:30	138.4	↓-0.1
4/20 16:40	138.0	↓-0.4
4/20 16:50	137.3	↓-0.7
4/20 17:00	136.2	↓-1.1
4/20 17:10	134.8	↓-1.4
4/20 17:20	133.1	↓-1.7
4/20 17:30	131.2	↓-1.9
4/20 17:40	128.9	↓-2.3
4/20 17:50	126.4	↓-2.5
4/20 18:00	123.7	↓-2.7
4/20 18:10	120.8	↓-2.9
4/20 18:20	117.8	↓-3.0
4/20 18:30	114.6	↓-3.2
4/20 18:40	111.3	↓-3.3
4/20 18:50	107.9	↓-3.4
4/20 19:00	104.5	↓-3.4
4/20 19:10	101.0	↓-3.5
4/20 19:20	97.6	↓-3.4
4/20 19:30	94.2	↓-3.4
4/20 19:40	90.9	↓-3.3
4/20 19:50	87.7	↓-3.2
4/20 20:00	84.7	↓-3.0
4/20 20:10	81.8	↓-2.9
4/20 20:20	79.1	↓-2.7
4/20 20:30	76.6	↓-2.5
4/20 20:40	74.3	↓-2.3
4/20 20:50	72.3	↓-2.0
4/20 21:00	70.6	↓-1.7
4/20 21:10	69.1	↓-1.5
4/20 21:20	68.0	↓-1.1
4/20 21:30	67.2	↓-0.8
4/20 21:40	66.7	↓-0.5
4/20 21:50	66.5	↓-0.2	干潮
4/20 22:00	66.7	↑0.2
4/20 22:10	67.2	↑0.5
4/20 22:20	68.0	↑0.8
4/20 22:30	69.2	↑1.2
4/20 22:40	70.6	↑1.4
4/20 22:50	72.4	↑1.8
4/20 23:00	74.5	↑2.1
4/20 23:10	76.9	↑2.4
4/20 23:20	79.5	↑2.6
4/20 23:30	82.4	↑2.9
4/20 23:40	85.5	↑3.1
4/20 23:50	88.8	↑3.3