20 (水)	04:09	08:50	14:19	21:31
	122cm	87cm	141cm	11cm
大潮 出 06:25 入 17:12 出 16:13 入 05:53

苫小牧（北海道）2008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	58.9	↑4.3
2/20 00:10	63.3	↑4.4
2/20 00:20	67.6	↑4.3
2/20 00:30	71.9	↑4.3
2/20 00:40	76.1	↑4.2
2/20 00:50	80.1	↑4.0
2/20 01:00	84.1	↑4.0
2/20 01:10	87.8	↑3.7
2/20 01:20	91.4	↑3.6
2/20 01:30	94.8	↑3.4
2/20 01:40	98.0	↑3.2
2/20 01:50	101.0	↑3.0
2/20 02:00	103.8	↑2.8
2/20 02:10	106.5	↑2.7
2/20 02:20	108.9	↑2.4
2/20 02:30	111.1	↑2.2
2/20 02:40	113.1	↑2.0
2/20 02:50	114.9	↑1.8
2/20 03:00	116.5	↑1.6
2/20 03:10	117.9	↑1.4
2/20 03:20	119.1	↑1.2
2/20 03:30	120.1	↑1.0
2/20 03:40	120.9	↑0.8
2/20 03:50	121.4	↑0.5
2/20 04:00	121.7	↑0.3	満潮
2/20 04:10	121.8	↑0.1
2/20 04:20	121.6	↓-0.2
2/20 04:30	121.2	↓-0.4
2/20 04:40	120.5	↓-0.7
2/20 04:50	119.6	↓-0.9
2/20 05:00	118.5	↓-1.1
2/20 05:10	117.1	↓-1.4
2/20 05:20	115.6	↓-1.5
2/20 05:30	113.9	↓-1.7
2/20 05:40	112.0	↓-1.9
2/20 05:50	110.1	↓-1.9
2/20 06:00	108.0	↓-2.1
2/20 06:10	106.0	↓-2.0
2/20 06:20	103.9	↓-2.1
2/20 06:30	101.8	↓-2.1
2/20 06:40	99.8	↓-2.0
2/20 06:50	97.8	↓-2.0
2/20 07:00	96.0	↓-1.8
2/20 07:10	94.3	↓-1.7
2/20 07:20	92.7	↓-1.6
2/20 07:30	91.3	↓-1.4
2/20 07:40	90.0	↓-1.3
2/20 07:50	89.0	↓-1.0
2/20 08:00	88.1	↓-0.9
2/20 08:10	87.3	↓-0.8
2/20 08:20	86.8	↓-0.5
2/20 08:30	86.4	↓-0.4
2/20 08:40	86.1	↓-0.3	干潮
2/20 08:50	86.1	0	干潮
2/20 09:00	86.2	↑0.1
2/20 09:10	86.4	↑0.2
2/20 09:20	86.8	↑0.4
2/20 09:30	87.4	↑0.6
2/20 09:40	88.2	↑0.8
2/20 09:50	89.1	↑0.9
2/20 10:00	90.2	↑1.1
2/20 10:10	91.5	↑1.3
2/20 10:20	93.0	↑1.5
2/20 10:30	94.6	↑1.6
2/20 10:40	96.5	↑1.9
2/20 10:50	98.5	↑2.0
2/20 11:00	100.7	↑2.2
2/20 11:10	103.1	↑2.4
2/20 11:20	105.6	↑2.5
2/20 11:30	108.2	↑2.6
2/20 11:40	111.0	↑2.8
2/20 11:50	113.7	↑2.7
2/20 12:00	116.6	↑2.9
2/20 12:10	119.3	↑2.7
2/20 12:20	122.1	↑2.8
2/20 12:30	124.8	↑2.7
2/20 12:40	127.3	↑2.5
2/20 12:50	129.7	↑2.4
2/20 13:00	131.9	↑2.2
2/20 13:10	133.8	↑1.9
2/20 13:20	135.6	↑1.8
2/20 13:30	137.1	↑1.5
2/20 13:40	138.3	↑1.2
2/20 13:50	139.2	↑0.9
2/20 14:00	139.9	↑0.7
2/20 14:10	140.3	↑0.4	満潮
2/20 14:20	140.4	↑0.1
2/20 14:30	140.2	↓-0.2
2/20 14:40	139.7	↓-0.5
2/20 14:50	139.0	↓-0.7
2/20 15:00	138.0	↓-1.0
2/20 15:10	136.8	↓-1.2
2/20 15:20	135.2	↓-1.6
2/20 15:30	133.5	↓-1.7
2/20 15:40	131.5	↓-2.0
2/20 15:50	129.2	↓-2.3
2/20 16:00	126.7	↓-2.5
2/20 16:10	123.9	↓-2.8
2/20 16:20	120.9	↓-3.0
2/20 16:30	117.5	↓-3.4
2/20 16:40	114.0	↓-3.5
2/20 16:50	110.2	↓-3.8
2/20 17:00	106.1	↓-4.1
2/20 17:10	101.8	↓-4.3
2/20 17:20	97.3	↓-4.5
2/20 17:30	92.5	↓-4.8
2/20 17:40	87.7	↓-4.8
2/20 17:50	82.7	↓-5.0
2/20 18:00	77.6	↓-5.1
2/20 18:10	72.4	↓-5.2	最大潮位差
2/20 18:20	67.3	↓-5.1
2/20 18:30	62.2	↓-5.1
2/20 18:40	57.1	↓-5.1
2/20 18:50	52.2	↓-4.9
2/20 19:00	47.5	↓-4.7
2/20 19:10	42.9	↓-4.6
2/20 19:20	38.6	↓-4.3
2/20 19:30	34.5	↓-4.1
2/20 19:40	30.8	↓-3.7
2/20 19:50	27.3	↓-3.5
2/20 20:00	24.2	↓-3.1
2/20 20:10	21.3	↓-2.9
2/20 20:20	18.9	↓-2.4
2/20 20:30	16.7	↓-2.2
2/20 20:40	14.9	↓-1.8
2/20 20:50	13.4	↓-1.5
2/20 21:00	12.3	↓-1.1
2/20 21:10	11.5	↓-0.8
2/20 21:20	11.0	↓-0.5
2/20 21:30	10.8	↓-0.2	干潮
2/20 21:40	11.0	↑0.2
2/20 21:50	11.4	↑0.4
2/20 22:00	12.2	↑0.8
2/20 22:10	13.4	↑1.2
2/20 22:20	14.8	↑1.4
2/20 22:30	16.6	↑1.8
2/20 22:40	18.7	↑2.1
2/20 22:50	21.2	↑2.5
2/20 23:00	24.0	↑2.8
2/20 23:10	27.1	↑3.1
2/20 23:20	30.5	↑3.4
2/20 23:30	34.2	↑3.7
2/20 23:40	38.1	↑3.9
2/20 23:50	42.3	↑4.2