20 (水)	02:31	08:58	15:16	21:18
	143cm	35cm	136cm	44cm
大潮 出 05:19 入 17:37 出 17:20 入 04:44

苫小牧（北海道）2051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	105.0	↑4.0
9/20 00:10	108.9	↑3.9
9/20 00:20	112.9	↑4.0
9/20 00:30	116.7	↑3.8
9/20 00:40	120.5	↑3.8
9/20 00:50	124.0	↑3.5
9/20 01:00	127.3	↑3.3
9/20 01:10	130.3	↑3.0
9/20 01:20	133.1	↑2.8
9/20 01:30	135.5	↑2.4
9/20 01:40	137.5	↑2.0
9/20 01:50	139.2	↑1.7
9/20 02:00	140.5	↑1.3
9/20 02:10	141.5	↑1.0
9/20 02:20	142.0	↑0.5
9/20 02:30	142.2	↑0.2	満潮
9/20 02:40	142.0	↓-0.2
9/20 02:50	141.5	↓-0.5
9/20 03:00	140.7	↓-0.8
9/20 03:10	139.6	↓-1.1
9/20 03:20	138.2	↓-1.4
9/20 03:30	136.5	↓-1.7
9/20 03:40	134.6	↓-1.9
9/20 03:50	132.4	↓-2.2
9/20 04:00	130.0	↓-2.4
9/20 04:10	127.4	↓-2.6
9/20 04:20	124.6	↓-2.8
9/20 04:30	121.5	↓-3.1
9/20 04:40	118.3	↓-3.2
9/20 04:50	114.8	↓-3.5
9/20 05:00	111.2	↓-3.6
9/20 05:10	107.3	↓-3.9
9/20 05:20	103.3	↓-4.0
9/20 05:30	99.1	↓-4.2
9/20 05:40	94.8	↓-4.3
9/20 05:50	90.3	↓-4.5
9/20 06:00	85.8	↓-4.5
9/20 06:10	81.3	↓-4.5
9/20 06:20	76.7	↓-4.6	最大潮位差
9/20 06:30	72.2	↓-4.5
9/20 06:40	67.8	↓-4.4
9/20 06:50	63.5	↓-4.3
9/20 07:00	59.3	↓-4.2
9/20 07:10	55.5	↓-3.8
9/20 07:20	51.8	↓-3.7
9/20 07:30	48.5	↓-3.3
9/20 07:40	45.5	↓-3.0
9/20 07:50	42.9	↓-2.6
9/20 08:00	40.6	↓-2.3
9/20 08:10	38.7	↓-1.9
9/20 08:20	37.2	↓-1.5
9/20 08:30	36.0	↓-1.2
9/20 08:40	35.2	↓-0.8
9/20 08:50	34.8	↓-0.4	干潮
9/20 09:00	34.8	0
9/20 09:10	35.0	↑0.2
9/20 09:20	35.6	↑0.6
9/20 09:30	36.5	↑0.9
9/20 09:40	37.6	↑1.1
9/20 09:50	39.0	↑1.4
9/20 10:00	40.6	↑1.6
9/20 10:10	42.6	↑2.0
9/20 10:20	44.7	↑2.1
9/20 10:30	47.1	↑2.4
9/20 10:40	49.7	↑2.6
9/20 10:50	52.6	↑2.9
9/20 11:00	55.7	↑3.1
9/20 11:10	59.0	↑3.3
9/20 11:20	62.5	↑3.5
9/20 11:30	66.3	↑3.8
9/20 11:40	70.2	↑3.9
9/20 11:50	74.4	↑4.2
9/20 12:00	78.6	↑4.2
9/20 12:10	83.0	↑4.4
9/20 12:20	87.5	↑4.5
9/20 12:30	92.0	↑4.5
9/20 12:40	96.5	↑4.5
9/20 12:50	100.9	↑4.4
9/20 13:00	105.2	↑4.3
9/20 13:10	109.4	↑4.2
9/20 13:20	113.3	↑3.9
9/20 13:30	117.0	↑3.7
9/20 13:40	120.5	↑3.5
9/20 13:50	123.6	↑3.1
9/20 14:00	126.4	↑2.8
9/20 14:10	128.8	↑2.4
9/20 14:20	130.9	↑2.1
9/20 14:30	132.6	↑1.7
9/20 14:40	133.9	↑1.3
9/20 14:50	134.9	↑1.0
9/20 15:00	135.5	↑0.6
9/20 15:10	135.8	↑0.3	満潮
9/20 15:20	135.8	0
9/20 15:30	135.5	↓-0.3
9/20 15:40	134.9	↓-0.6
9/20 15:50	134.1	↓-0.8
9/20 16:00	133.0	↓-1.1
9/20 16:10	131.6	↓-1.4
9/20 16:20	130.1	↓-1.5
9/20 16:30	128.2	↓-1.9
9/20 16:40	126.2	↓-2.0
9/20 16:50	123.9	↓-2.3
9/20 17:00	121.4	↓-2.5
9/20 17:10	118.6	↓-2.8
9/20 17:20	115.6	↓-3.0
9/20 17:30	112.4	↓-3.2
9/20 17:40	109.0	↓-3.4
9/20 17:50	105.4	↓-3.6
9/20 18:00	101.5	↓-3.9
9/20 18:10	97.5	↓-4.0
9/20 18:20	93.4	↓-4.1
9/20 18:30	89.2	↓-4.2
9/20 18:40	84.9	↓-4.3
9/20 18:50	80.7	↓-4.2
9/20 19:00	76.4	↓-4.3
9/20 19:10	72.3	↓-4.1
9/20 19:20	68.3	↓-4.0
9/20 19:30	64.5	↓-3.8
9/20 19:40	61.0	↓-3.5
9/20 19:50	57.7	↓-3.3
9/20 20:00	54.7	↓-3.0
9/20 20:10	52.0	↓-2.7
9/20 20:20	49.8	↓-2.2
9/20 20:30	47.9	↓-1.9
9/20 20:40	46.3	↓-1.6
9/20 20:50	45.2	↓-1.1
9/20 21:00	44.4	↓-0.8
9/20 21:10	44.0	↓-0.4	干潮
9/20 21:20	43.9	↓-0.1
9/20 21:30	44.2	↑0.3
9/20 21:40	44.8	↑0.6
9/20 21:50	45.7	↑0.9
9/20 22:00	46.9	↑1.2
9/20 22:10	48.4	↑1.5
9/20 22:20	50.2	↑1.8
9/20 22:30	52.2	↑2.0
9/20 22:40	54.4	↑2.2
9/20 22:50	57.0	↑2.6
9/20 23:00	59.7	↑2.7
9/20 23:10	62.7	↑3.0
9/20 23:20	66.0	↑3.3
9/20 23:30	69.5	↑3.5
9/20 23:40	73.3	↑3.8
9/20 23:50	77.2	↑3.9