19 (月)	05:34	11:25	17:12	23:36
	129cm	55cm	135cm	29cm
中潮 出 06:26 入 17:11 出 08:14 入 20:32

苫小牧（北海道）2018年02月19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
2/19 00:00	25.2	↑1.5
2/19 00:10	27.1	↑1.9
2/19 00:20	29.1	↑2.0
2/19 00:30	31.5	↑2.4
2/19 00:40	34.0	↑2.5
2/19 00:50	36.7	↑2.7
2/19 01:00	39.6	↑2.9
2/19 01:10	42.7	↑3.1
2/19 01:20	46.1	↑3.4
2/19 01:30	49.6	↑3.5
2/19 01:40	53.3	↑3.7
2/19 01:50	57.2	↑3.9
2/19 02:00	61.3	↑4.1
2/19 02:10	65.6	↑4.3
2/19 02:20	70.0	↑4.4
2/19 02:30	74.5	↑4.5
2/19 02:40	79.1	↑4.6
2/19 02:50	83.7	↑4.6
2/19 03:00	88.4	↑4.7	最大潮位差
2/19 03:10	92.9	↑4.5
2/19 03:20	97.4	↑4.5
2/19 03:30	101.7	↑4.3
2/19 03:40	105.8	↑4.1
2/19 03:50	109.7	↑3.9
2/19 04:00	113.3	↑3.6
2/19 04:10	116.5	↑3.2
2/19 04:20	119.4	↑2.9
2/19 04:30	121.9	↑2.5
2/19 04:40	124.0	↑2.1
2/19 04:50	125.7	↑1.7
2/19 05:00	127.1	↑1.4
2/19 05:10	128.0	↑0.9
2/19 05:20	128.6	↑0.6
2/19 05:30	128.9	↑0.3	満潮
2/19 05:40	128.8	↓-0.1
2/19 05:50	128.5	↓-0.3
2/19 06:00	127.8	↓-0.7
2/19 06:10	127.0	↓-0.8
2/19 06:20	125.9	↓-1.1
2/19 06:30	124.6	↓-1.3
2/19 06:40	123.2	↓-1.4
2/19 06:50	121.5	↓-1.7
2/19 07:00	119.7	↓-1.8
2/19 07:10	117.8	↓-1.9
2/19 07:20	115.7	↓-2.1
2/19 07:30	113.4	↓-2.3
2/19 07:40	110.9	↓-2.5
2/19 07:50	108.3	↓-2.6
2/19 08:00	105.5	↓-2.8
2/19 08:10	102.5	↓-3.0
2/19 08:20	99.4	↓-3.1
2/19 08:30	96.2	↓-3.2
2/19 08:40	92.8	↓-3.4
2/19 08:50	89.4	↓-3.4
2/19 09:00	85.9	↓-3.5
2/19 09:10	82.5	↓-3.4
2/19 09:20	79.0	↓-3.5
2/19 09:30	75.6	↓-3.4
2/19 09:40	72.4	↓-3.2
2/19 09:50	69.3	↓-3.1
2/19 10:00	66.4	↓-2.9
2/19 10:10	63.8	↓-2.6
2/19 10:20	61.5	↓-2.3
2/19 10:30	59.4	↓-2.1
2/19 10:40	57.7	↓-1.7
2/19 10:50	56.4	↓-1.3
2/19 11:00	55.4	↓-1.0
2/19 11:10	54.8	↓-0.6
2/19 11:20	54.5	↓-0.3	干潮
2/19 11:30	54.5	0
2/19 11:40	54.9	↑0.4
2/19 11:50	55.5	↑0.6
2/19 12:00	56.4	↑0.9
2/19 12:10	57.6	↑1.2
2/19 12:20	59.0	↑1.4
2/19 12:30	60.6	↑1.6
2/19 12:40	62.4	↑1.8
2/19 12:50	64.4	↑2.0
2/19 13:00	66.5	↑2.1
2/19 13:10	68.8	↑2.3
2/19 13:20	71.3	↑2.5
2/19 13:30	73.9	↑2.6
2/19 13:40	76.7	↑2.8
2/19 13:50	79.7	↑3.0
2/19 14:00	82.8	↑3.1
2/19 14:10	86.0	↑3.2
2/19 14:20	89.4	↑3.4
2/19 14:30	92.9	↑3.5
2/19 14:40	96.5	↑3.6
2/19 14:50	100.1	↑3.6
2/19 15:00	103.8	↑3.7
2/19 15:10	107.5	↑3.7
2/19 15:20	111.1	↑3.6
2/19 15:30	114.6	↑3.5
2/19 15:40	118.0	↑3.4
2/19 15:50	121.1	↑3.1
2/19 16:00	124.1	↑3.0
2/19 16:10	126.7	↑2.6
2/19 16:20	129.0	↑2.3
2/19 16:30	130.9	↑1.9
2/19 16:40	132.4	↑1.5
2/19 16:50	133.5	↑1.1
2/19 17:00	134.2	↑0.7
2/19 17:10	134.4	↑0.2	満潮
2/19 17:20	134.3	↓-0.1
2/19 17:30	133.7	↓-0.6
2/19 17:40	132.7	↓-1.0
2/19 17:50	131.4	↓-1.3
2/19 18:00	129.7	↓-1.7
2/19 18:10	127.8	↓-1.9
2/19 18:20	125.5	↓-2.3
2/19 18:30	123.1	↓-2.4
2/19 18:40	120.4	↓-2.7
2/19 18:50	117.5	↓-2.9
2/19 19:00	114.5	↓-3.0
2/19 19:10	111.4	↓-3.1
2/19 19:20	108.1	↓-3.3
2/19 19:30	104.7	↓-3.4
2/19 19:40	101.1	↓-3.6
2/19 19:50	97.5	↓-3.6
2/19 20:00	93.7	↓-3.8
2/19 20:10	89.9	↓-3.8
2/19 20:20	86.0	↓-3.9
2/19 20:30	82.0	↓-4.0
2/19 20:40	77.9	↓-4.1
2/19 20:50	73.7	↓-4.2
2/19 21:00	69.6	↓-4.1
2/19 21:10	65.4	↓-4.2
2/19 21:20	61.3	↓-4.1
2/19 21:30	57.3	↓-4.0
2/19 21:40	53.4	↓-3.9
2/19 21:50	49.6	↓-3.8
2/19 22:00	46.0	↓-3.6
2/19 22:10	42.7	↓-3.3
2/19 22:20	39.7	↓-3.0
2/19 22:30	37.0	↓-2.7
2/19 22:40	34.6	↓-2.4
2/19 22:50	32.6	↓-2.0
2/19 23:00	31.0	↓-1.6
2/19 23:10	29.8	↓-1.2
2/19 23:20	29.0	↓-0.8
2/19 23:30	28.6	↓-0.4	干潮
2/19 23:40	28.6	0
2/19 23:50	29.0	↑0.4