20 (水)	03:34	10:38	17:28	22:29
	158cm	-9cm	138cm	84cm
中潮 出 04:43 入 18:17 出 21:12 入 05:39 潮干狩り ◎ 08:09～13:09

東静内（北海道）2011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	99.0	↑3.2
4/20 00:10	102.4	↑3.4
4/20 00:20	106.0	↑3.6
4/20 00:30	109.6	↑3.6
4/20 00:40	113.3	↑3.7
4/20 00:50	117.1	↑3.8
4/20 01:00	120.8	↑3.7
4/20 01:10	124.6	↑3.8
4/20 01:20	128.3	↑3.7
4/20 01:30	131.9	↑3.6
4/20 01:40	135.4	↑3.5
4/20 01:50	138.7	↑3.3
4/20 02:00	141.9	↑3.2
4/20 02:10	144.8	↑2.9
4/20 02:20	147.5	↑2.7
4/20 02:30	149.9	↑2.4
4/20 02:40	152.0	↑2.1
4/20 02:50	153.8	↑1.8
4/20 03:00	155.3	↑1.5
4/20 03:10	156.4	↑1.1
4/20 03:20	157.1	↑0.7
4/20 03:30	157.4	↑0.3	満潮
4/20 03:40	157.3	↓-0.1
4/20 03:50	156.8	↓-0.5
4/20 04:00	155.9	↓-0.9
4/20 04:10	154.5	↓-1.4
4/20 04:20	152.8	↓-1.7
4/20 04:30	150.6	↓-2.2
4/20 04:40	148.0	↓-2.6
4/20 04:50	145.0	↓-3.0
4/20 05:00	141.7	↓-3.3
4/20 05:10	137.9	↓-3.8
4/20 05:20	133.8	↓-4.1
4/20 05:30	129.4	↓-4.4
4/20 05:40	124.6	↓-4.8
4/20 05:50	119.6	↓-5.0
4/20 06:00	114.3	↓-5.3
4/20 06:10	108.7	↓-5.6
4/20 06:20	103.0	↓-5.7
4/20 06:30	97.1	↓-5.9
4/20 06:40	91.1	↓-6.0
4/20 06:50	84.9	↓-6.2	最大潮位差
4/20 07:00	78.7	↓-6.2	最大潮位差
4/20 07:10	72.5	↓-6.2	最大潮位差
4/20 07:20	66.3	↓-6.2	最大潮位差
4/20 07:30	60.1	↓-6.2	最大潮位差
4/20 07:40	54.0	↓-6.1
4/20 07:50	48.0	↓-6.0
4/20 08:00	42.1	↓-5.9
4/20 08:10	36.4	↓-5.7
4/20 08:20	31.0	↓-5.4
4/20 08:30	25.7	↓-5.3
4/20 08:40	20.8	↓-4.9
4/20 08:50	16.1	↓-4.7
4/20 09:00	11.8	↓-4.3
4/20 09:10	7.8	↓-4.0
4/20 09:20	4.2	↓-3.6
4/20 09:30	1.0	↓-3.2
4/20 09:40	-1.8	↓-2.8
4/20 09:50	-4.2	↓-2.4
4/20 10:00	-6.1	↓-1.9
4/20 10:10	-7.6	↓-1.5
4/20 10:20	-8.6	↓-1.0
4/20 10:30	-9.2	↓-0.6	干潮
4/20 10:40	-9.3	↓-0.1
4/20 10:50	-8.9	↑0.4
4/20 11:00	-8.1	↑0.8
4/20 11:10	-6.8	↑1.3
4/20 11:20	-5.0	↑1.8
4/20 11:30	-2.9	↑2.1
4/20 11:40	-0.3	↑2.6
4/20 11:50	2.7	↑3.0
4/20 12:00	6.1	↑3.4
4/20 12:10	9.8	↑3.7
4/20 12:20	13.9	↑4.1
4/20 12:30	18.2	↑4.3
4/20 12:40	22.9	↑4.7
4/20 12:50	27.8	↑4.9
4/20 13:00	32.9	↑5.1
4/20 13:10	38.2	↑5.3
4/20 13:20	43.7	↑5.5
4/20 13:30	49.2	↑5.5
4/20 13:40	54.9	↑5.7
4/20 13:50	60.6	↑5.7
4/20 14:00	66.3	↑5.7
4/20 14:10	71.9	↑5.6
4/20 14:20	77.5	↑5.6
4/20 14:30	83.0	↑5.5
4/20 14:40	88.4	↑5.4
4/20 14:50	93.6	↑5.2
4/20 15:00	98.6	↑5.0
4/20 15:10	103.4	↑4.8
4/20 15:20	108.0	↑4.6
4/20 15:30	112.3	↑4.3
4/20 15:40	116.2	↑3.9
4/20 15:50	119.9	↑3.7
4/20 16:00	123.2	↑3.3
4/20 16:10	126.2	↑3.0
4/20 16:20	128.8	↑2.6
4/20 16:30	131.1	↑2.3
4/20 16:40	133.0	↑1.9
4/20 16:50	134.5	↑1.5
4/20 17:00	135.7	↑1.2
4/20 17:10	136.5	↑0.8
4/20 17:20	136.9	↑0.4	満潮
4/20 17:30	137.0	↑0.1
4/20 17:40	136.7	↓-0.3
4/20 17:50	136.2	↓-0.5
4/20 18:00	135.3	↓-0.9
4/20 18:10	134.1	↓-1.2
4/20 18:20	132.6	↓-1.5
4/20 18:30	131.0	↓-1.6
4/20 18:40	129.0	↓-2.0
4/20 18:50	126.9	↓-2.1
4/20 19:00	124.7	↓-2.2
4/20 19:10	122.2	↓-2.5
4/20 19:20	119.7	↓-2.5
4/20 19:30	117.1	↓-2.6
4/20 19:40	114.4	↓-2.7
4/20 19:50	111.6	↓-2.8
4/20 20:00	108.9	↓-2.7
4/20 20:10	106.2	↓-2.7
4/20 20:20	103.6	↓-2.6
4/20 20:30	101.0	↓-2.6
4/20 20:40	98.5	↓-2.5
4/20 20:50	96.1	↓-2.4
4/20 21:00	93.9	↓-2.2
4/20 21:10	91.9	↓-2.0
4/20 21:20	90.1	↓-1.8
4/20 21:30	88.4	↓-1.7
4/20 21:40	87.0	↓-1.4
4/20 21:50	85.8	↓-1.2
4/20 22:00	84.9	↓-0.9
4/20 22:10	84.3	↓-0.6
4/20 22:20	83.9	↓-0.4	干潮
4/20 22:30	83.8	↓-0.1
4/20 22:40	84.0	↑0.2
4/20 22:50	84.5	↑0.5
4/20 23:00	85.2	↑0.7
4/20 23:10	86.3	↑1.1
4/20 23:20	87.6	↑1.3
4/20 23:30	89.2	↑1.6
4/20 23:40	91.1	↑1.9
4/20 23:50	93.2	↑2.1