20 (日)	03:52	09:49	15:42	22:14
	144cm	50cm	145cm	27cm
大潮 出 05:19 入 17:36 出 06:52 入 17:51

苫小牧（北海道）2009年09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
9/20 00:00	67.4	↑3.9
9/20 00:10	71.5	↑4.1
9/20 00:20	75.9	↑4.4
9/20 00:30	80.4	↑4.5
9/20 00:40	85.0	↑4.6
9/20 00:50	89.7	↑4.7
9/20 01:00	94.5	↑4.8
9/20 01:10	99.3	↑4.8
9/20 01:20	104.0	↑4.7
9/20 01:30	108.6	↑4.6
9/20 01:40	113.1	↑4.5
9/20 01:50	117.4	↑4.3
9/20 02:00	121.4	↑4.0
9/20 02:10	125.1	↑3.7
9/20 02:20	128.5	↑3.4
9/20 02:30	131.6	↑3.1
9/20 02:40	134.3	↑2.7
9/20 02:50	136.7	↑2.4
9/20 03:00	138.7	↑2.0
9/20 03:10	140.3	↑1.6
9/20 03:20	141.5	↑1.2
9/20 03:30	142.4	↑0.9
9/20 03:40	142.9	↑0.5
9/20 03:50	143.1	↑0.2	満潮
9/20 04:00	142.9	↓-0.2
9/20 04:10	142.5	↓-0.4
9/20 04:20	141.8	↓-0.7
9/20 04:30	140.8	↓-1.0
9/20 04:40	139.5	↓-1.3
9/20 04:50	138.0	↓-1.5
9/20 05:00	136.1	↓-1.9
9/20 05:10	134.1	↓-2.0
9/20 05:20	131.7	↓-2.4
9/20 05:30	129.1	↓-2.6
9/20 05:40	126.3	↓-2.8
9/20 05:50	123.2	↓-3.1
9/20 06:00	119.8	↓-3.4
9/20 06:10	116.3	↓-3.5
9/20 06:20	112.5	↓-3.8
9/20 06:30	108.5	↓-4.0
9/20 06:40	104.4	↓-4.1
9/20 06:50	100.1	↓-4.3
9/20 07:00	95.8	↓-4.3
9/20 07:10	91.4	↓-4.4
9/20 07:20	87.0	↓-4.4
9/20 07:30	82.7	↓-4.3
9/20 07:40	78.5	↓-4.2
9/20 07:50	74.5	↓-4.0
9/20 08:00	70.6	↓-3.9
9/20 08:10	67.0	↓-3.6
9/20 08:20	63.7	↓-3.3
9/20 08:30	60.7	↓-3.0
9/20 08:40	58.1	↓-2.6
9/20 08:50	55.8	↓-2.3
9/20 09:00	53.9	↓-1.9
9/20 09:10	52.4	↓-1.5
9/20 09:20	51.2	↓-1.2
9/20 09:30	50.4	↓-0.8
9/20 09:40	49.9	↓-0.5	干潮
9/20 09:50	49.9	0
9/20 10:00	50.1	↑0.2
9/20 10:10	50.6	↑0.5
9/20 10:20	51.5	↑0.9
9/20 10:30	52.6	↑1.1
9/20 10:40	54.0	↑1.4
9/20 10:50	55.7	↑1.7
9/20 11:00	57.7	↑2.0
9/20 11:10	59.9	↑2.2
9/20 11:20	62.3	↑2.4
9/20 11:30	65.0	↑2.7
9/20 11:40	68.0	↑3.0
9/20 11:50	71.1	↑3.1
9/20 12:00	74.6	↑3.5
9/20 12:10	78.2	↑3.6
9/20 12:20	82.1	↑3.9
9/20 12:30	86.1	↑4.0
9/20 12:40	90.3	↑4.2
9/20 12:50	94.6	↑4.3
9/20 13:00	99.0	↑4.4
9/20 13:10	103.4	↑4.4
9/20 13:20	107.9	↑4.5
9/20 13:30	112.3	↑4.4
9/20 13:40	116.6	↑4.3
9/20 13:50	120.7	↑4.1
9/20 14:00	124.6	↑3.9
9/20 14:10	128.2	↑3.6
9/20 14:20	131.6	↑3.4
9/20 14:30	134.6	↑3.0
9/20 14:40	137.3	↑2.7
9/20 14:50	139.6	↑2.3
9/20 15:00	141.4	↑1.8
9/20 15:10	142.9	↑1.5
9/20 15:20	143.9	↑1.0
9/20 15:30	144.6	↑0.7
9/20 15:40	144.8	↑0.2	満潮
9/20 15:50	144.7	↓-0.1
9/20 16:00	144.2	↓-0.5
9/20 16:10	143.3	↓-0.9
9/20 16:20	142.1	↓-1.2
9/20 16:30	140.6	↓-1.5
9/20 16:40	138.9	↓-1.7
9/20 16:50	136.8	↓-2.1
9/20 17:00	134.5	↓-2.3
9/20 17:10	132.0	↓-2.5
9/20 17:20	129.2	↓-2.8
9/20 17:30	126.1	↓-3.1
9/20 17:40	122.9	↓-3.2
9/20 17:50	119.4	↓-3.5
9/20 18:00	115.6	↓-3.8
9/20 18:10	111.7	↓-3.9
9/20 18:20	107.5	↓-4.2
9/20 18:30	103.2	↓-4.3
9/20 18:40	98.6	↓-4.6
9/20 18:50	93.9	↓-4.7
9/20 19:00	89.1	↓-4.8
9/20 19:10	84.2	↓-4.9
9/20 19:20	79.2	↓-5.0	最大潮位差
9/20 19:30	74.2	↓-5.0	最大潮位差
9/20 19:40	69.3	↓-4.9
9/20 19:50	64.4	↓-4.9
9/20 20:00	59.7	↓-4.7
9/20 20:10	55.2	↓-4.5
9/20 20:20	50.9	↓-4.3
9/20 20:30	46.9	↓-4.0
9/20 20:40	43.1	↓-3.8
9/20 20:50	39.8	↓-3.3
9/20 21:00	36.8	↓-3.0
9/20 21:10	34.2	↓-2.6
9/20 21:20	32.0	↓-2.2
9/20 21:30	30.1	↓-1.9
9/20 21:40	28.7	↓-1.4
9/20 21:50	27.7	↓-1.0
9/20 22:00	27.1	↓-0.6
9/20 22:10	26.8	↓-0.3	干潮
9/20 22:20	26.9	↑0.1
9/20 22:30	27.3	↑0.4
9/20 22:40	28.0	↑0.7
9/20 22:50	29.1	↑1.1
9/20 23:00	30.4	↑1.3
9/20 23:10	32.1	↑1.7
9/20 23:20	34.0	↑1.9
9/20 23:30	36.2	↑2.2
9/20 23:40	38.7	↑2.5
9/20 23:50	41.5	↑2.8