20 (金)	02:16	08:52	15:27	20:52
	141cm	22cm	133cm	66cm
大潮 出 04:42 入 18:18 出 03:49 入 17:25 潮干狩り ○ 07:21～10:25

東静内（北海道）2012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	116.1	↑3.3
4/20 00:10	119.2	↑3.1
4/20 00:20	122.2	↑3.0
4/20 00:30	125.0	↑2.8
4/20 00:40	127.7	↑2.7
4/20 00:50	130.2	↑2.5
4/20 01:00	132.4	↑2.2
4/20 01:10	134.4	↑2.0
4/20 01:20	136.2	↑1.8
4/20 01:30	137.7	↑1.5
4/20 01:40	138.9	↑1.2
4/20 01:50	139.8	↑0.9
4/20 02:00	140.5	↑0.7
4/20 02:10	140.8	↑0.3	満潮
4/20 02:20	140.8	0
4/20 02:30	140.5	↓-0.3
4/20 02:40	139.8	↓-0.7
4/20 02:50	138.9	↓-0.9
4/20 03:00	137.5	↓-1.4
4/20 03:10	135.9	↓-1.6
4/20 03:20	134.0	↓-1.9
4/20 03:30	131.7	↓-2.3
4/20 03:40	129.1	↓-2.6
4/20 03:50	126.2	↓-2.9
4/20 04:00	123.1	↓-3.1
4/20 04:10	119.7	↓-3.4
4/20 04:20	116.0	↓-3.7
4/20 04:30	112.1	↓-3.9
4/20 04:40	108.0	↓-4.1
4/20 04:50	103.7	↓-4.3
4/20 05:00	99.2	↓-4.5
4/20 05:10	94.7	↓-4.5
4/20 05:20	90.0	↓-4.7
4/20 05:30	85.2	↓-4.8	最大潮位差
4/20 05:40	80.4	↓-4.8	最大潮位差
4/20 05:50	75.6	↓-4.8	最大潮位差
4/20 06:00	70.8	↓-4.8	最大潮位差
4/20 06:10	66.1	↓-4.7
4/20 06:20	61.5	↓-4.6
4/20 06:30	57.0	↓-4.5
4/20 06:40	52.6	↓-4.4
4/20 06:50	48.5	↓-4.1
4/20 07:00	44.5	↓-4.0
4/20 07:10	40.8	↓-3.7
4/20 07:20	37.4	↓-3.4
4/20 07:30	34.2	↓-3.2
4/20 07:40	31.4	↓-2.8
4/20 07:50	28.9	↓-2.5
4/20 08:00	26.7	↓-2.2
4/20 08:10	24.9	↓-1.8
4/20 08:20	23.5	↓-1.4
4/20 08:30	22.5	↓-1.0
4/20 08:40	21.8	↓-0.7
4/20 08:50	21.6	↓-0.2	干潮
4/20 09:00	21.7	↑0.1
4/20 09:10	22.2	↑0.5
4/20 09:20	23.1	↑0.9
4/20 09:30	24.4	↑1.3
4/20 09:40	26.0	↑1.6
4/20 09:50	28.0	↑2.0
4/20 10:00	30.3	↑2.3
4/20 10:10	32.9	↑2.6
4/20 10:20	35.8	↑2.9
4/20 10:30	39.0	↑3.2
4/20 10:40	42.4	↑3.4
4/20 10:50	46.1	↑3.7
4/20 11:00	49.9	↑3.8
4/20 11:10	53.9	↑4.0
4/20 11:20	58.0	↑4.1
4/20 11:30	62.3	↑4.3
4/20 11:40	66.6	↑4.3
4/20 11:50	70.9	↑4.3
4/20 12:00	75.3	↑4.4
4/20 12:10	79.7	↑4.4
4/20 12:20	84.1	↑4.4
4/20 12:30	88.4	↑4.3
4/20 12:40	92.6	↑4.2
4/20 12:50	96.8	↑4.2
4/20 13:00	100.7	↑3.9
4/20 13:10	104.6	↑3.9
4/20 13:20	108.2	↑3.6
4/20 13:30	111.7	↑3.5
4/20 13:40	114.9	↑3.2
4/20 13:50	117.9	↑3.0
4/20 14:00	120.7	↑2.8
4/20 14:10	123.2	↑2.5
4/20 14:20	125.4	↑2.2
4/20 14:30	127.3	↑1.9
4/20 14:40	128.9	↑1.6
4/20 14:50	130.2	↑1.3
4/20 15:00	131.2	↑1.0
4/20 15:10	131.8	↑0.6
4/20 15:20	132.2	↑0.4	満潮
4/20 15:30	132.2	0
4/20 15:40	131.9	↓-0.3
4/20 15:50	131.3	↓-0.6
4/20 16:00	130.5	↓-0.8
4/20 16:10	129.3	↓-1.2
4/20 16:20	127.8	↓-1.5
4/20 16:30	126.1	↓-1.7
4/20 16:40	124.1	↓-2.0
4/20 16:50	121.9	↓-2.2
4/20 17:00	119.4	↓-2.5
4/20 17:10	116.8	↓-2.6
4/20 17:20	114.0	↓-2.8
4/20 17:30	111.1	↓-2.9
4/20 17:40	108.1	↓-3.0
4/20 17:50	104.9	↓-3.2
4/20 18:00	101.7	↓-3.2
4/20 18:10	98.5	↓-3.2
4/20 18:20	95.3	↓-3.2
4/20 18:30	92.1	↓-3.2
4/20 18:40	89.0	↓-3.1
4/20 18:50	86.0	↓-3.0
4/20 19:00	83.1	↓-2.9
4/20 19:10	80.3	↓-2.8
4/20 19:20	77.7	↓-2.6
4/20 19:30	75.3	↓-2.4
4/20 19:40	73.2	↓-2.1
4/20 19:50	71.2	↓-2.0
4/20 20:00	69.6	↓-1.6
4/20 20:10	68.2	↓-1.4
4/20 20:20	67.1	↓-1.1
4/20 20:30	66.3	↓-0.8
4/20 20:40	65.8	↓-0.5
4/20 20:50	65.6	↓-0.2	干潮
4/20 21:00	65.7	↑0.1
4/20 21:10	66.2	↑0.5
4/20 21:20	67.0	↑0.8
4/20 21:30	68.1	↑1.1
4/20 21:40	69.5	↑1.4
4/20 21:50	71.1	↑1.6
4/20 22:00	73.1	↑2.0
4/20 22:10	75.3	↑2.2
4/20 22:20	77.8	↑2.5
4/20 22:30	80.5	↑2.7
4/20 22:40	83.4	↑2.9
4/20 22:50	86.5	↑3.1
4/20 23:00	89.7	↑3.2
4/20 23:10	93.1	↑3.4
4/20 23:20	96.6	↑3.5
4/20 23:30	100.1	↑3.5
4/20 23:40	103.7	↑3.6
4/20 23:50	107.3	↑3.6