20 (日)	02:39	09:21	15:58	21:17
	146cm	13cm	136cm	70cm
大潮 出 04:42 入 18:18 出 18:22 入 04:07 潮干狩り ◎ 07:28～11:14

東静内（北海道）2008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	110.2	↑3.7
4/20 00:10	113.8	↑3.6
4/20 00:20	117.3	↑3.5
4/20 00:30	120.7	↑3.4
4/20 00:40	124.0	↑3.3
4/20 00:50	127.1	↑3.1
4/20 01:00	130.1	↑3.0
4/20 01:10	132.8	↑2.7
4/20 01:20	135.4	↑2.6
4/20 01:30	137.7	↑2.3
4/20 01:40	139.7	↑2.0
4/20 01:50	141.4	↑1.7
4/20 02:00	142.8	↑1.4
4/20 02:10	144.0	↑1.2
4/20 02:20	144.7	↑0.7
4/20 02:30	145.2	↑0.5	満潮
4/20 02:40	145.3	↑0.1
4/20 02:50	145.0	↓-0.3
4/20 03:00	144.4	↓-0.6
4/20 03:10	143.4	↓-1.0
4/20 03:20	142.1	↓-1.3
4/20 03:30	140.4	↓-1.7
4/20 03:40	138.3	↓-2.1
4/20 03:50	135.9	↓-2.4
4/20 04:00	133.1	↓-2.8
4/20 04:10	130.1	↓-3.0
4/20 04:20	126.7	↓-3.4
4/20 04:30	123.0	↓-3.7
4/20 04:40	119.0	↓-4.0
4/20 04:50	114.8	↓-4.2
4/20 05:00	110.3	↓-4.5
4/20 05:10	105.7	↓-4.6
4/20 05:20	100.8	↓-4.9
4/20 05:30	95.9	↓-4.9
4/20 05:40	90.8	↓-5.1
4/20 05:50	85.6	↓-5.2
4/20 06:00	80.3	↓-5.3	最大潮位差
4/20 06:10	75.0	↓-5.3	最大潮位差
4/20 06:20	69.8	↓-5.2
4/20 06:30	64.6	↓-5.2
4/20 06:40	59.5	↓-5.1
4/20 06:50	54.4	↓-5.1
4/20 07:00	49.6	↓-4.8
4/20 07:10	44.9	↓-4.7
4/20 07:20	40.4	↓-4.5
4/20 07:30	36.2	↓-4.2
4/20 07:40	32.2	↓-4.0
4/20 07:50	28.6	↓-3.6
4/20 08:00	25.2	↓-3.4
4/20 08:10	22.2	↓-3.0
4/20 08:20	19.6	↓-2.6
4/20 08:30	17.4	↓-2.2
4/20 08:40	15.5	↓-1.9
4/20 08:50	14.1	↓-1.4
4/20 09:00	13.0	↓-1.1
4/20 09:10	12.4	↓-0.6
4/20 09:20	12.2	↓-0.2	干潮
4/20 09:30	12.5	↑0.3
4/20 09:40	13.1	↑0.6
4/20 09:50	14.2	↑1.1
4/20 10:00	15.6	↑1.4
4/20 10:10	17.5	↑1.9
4/20 10:20	19.7	↑2.2
4/20 10:30	22.3	↑2.6
4/20 10:40	25.2	↑2.9
4/20 10:50	28.4	↑3.2
4/20 11:00	32.0	↑3.6
4/20 11:10	35.8	↑3.8
4/20 11:20	39.8	↑4.0
4/20 11:30	44.0	↑4.2
4/20 11:40	48.5	↑4.5
4/20 11:50	53.0	↑4.5
4/20 12:00	57.7	↑4.7
4/20 12:10	62.5	↑4.8
4/20 12:20	67.4	↑4.9
4/20 12:30	72.3	↑4.9
4/20 12:40	77.1	↑4.8
4/20 12:50	82.0	↑4.9
4/20 13:00	86.8	↑4.8
4/20 13:10	91.5	↑4.7
4/20 13:20	96.0	↑4.5
4/20 13:30	100.4	↑4.4
4/20 13:40	104.7	↑4.3
4/20 13:50	108.7	↑4.0
4/20 14:00	112.6	↑3.9
4/20 14:10	116.2	↑3.6
4/20 14:20	119.5	↑3.3
4/20 14:30	122.5	↑3.0
4/20 14:40	125.3	↑2.8
4/20 14:50	127.7	↑2.4
4/20 15:00	129.8	↑2.1
4/20 15:10	131.6	↑1.8
4/20 15:20	133.0	↑1.4
4/20 15:30	134.1	↑1.1
4/20 15:40	134.9	↑0.8
4/20 15:50	135.3	↑0.4	満潮
4/20 16:00	135.4	↑0.1
4/20 16:10	135.1	↓-0.3
4/20 16:20	134.5	↓-0.6
4/20 16:30	133.6	↓-0.9
4/20 16:40	132.4	↓-1.2
4/20 16:50	130.9	↓-1.5
4/20 17:00	129.1	↓-1.8
4/20 17:10	127.1	↓-2.0
4/20 17:20	124.8	↓-2.3
4/20 17:30	122.3	↓-2.5
4/20 17:40	119.7	↓-2.6
4/20 17:50	116.8	↓-2.9
4/20 18:00	113.9	↓-2.9
4/20 18:10	110.8	↓-3.1
4/20 18:20	107.6	↓-3.2
4/20 18:30	104.4	↓-3.2
4/20 18:40	101.2	↓-3.2
4/20 18:50	98.0	↓-3.2
4/20 19:00	94.9	↓-3.1
4/20 19:10	91.8	↓-3.1
4/20 19:20	88.8	↓-3.0
4/20 19:30	86.0	↓-2.8
4/20 19:40	83.3	↓-2.7
4/20 19:50	80.7	↓-2.6
4/20 20:00	78.4	↓-2.3
4/20 20:10	76.4	↓-2.0
4/20 20:20	74.5	↓-1.9
4/20 20:30	73.0	↓-1.5
4/20 20:40	71.7	↓-1.3
4/20 20:50	70.7	↓-1.0
4/20 21:00	70.0	↓-0.7
4/20 21:10	69.7	↓-0.3	干潮
4/20 21:20	69.6	↓-0.1
4/20 21:30	69.9	↑0.3
4/20 21:40	70.5	↑0.6
4/20 21:50	71.4	↑0.9
4/20 22:00	72.7	↑1.3
4/20 22:10	74.2	↑1.5
4/20 22:20	76.0	↑1.8
4/20 22:30	78.1	↑2.1
4/20 22:40	80.5	↑2.4
4/20 22:50	83.1	↑2.6
4/20 23:00	85.9	↑2.8
4/20 23:10	89.0	↑3.1
4/20 23:20	92.2	↑3.2
4/20 23:30	95.5	↑3.3
4/20 23:40	99.0	↑3.5
4/20 23:50	102.6	↑3.6