18 (土)	04:29	10:37	16:32	22:41
	131cm	38cm	132cm	40cm
中潮 出 05:40 入 17:45 出 06:51 入 19:31

苫小牧（北海道）2056年03月18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
3/18 00:00	47.8	↑2.5
3/18 00:10	50.6	↑2.8
3/18 00:20	53.6	↑3.0
3/18 00:30	56.9	↑3.3
3/18 00:40	60.5	↑3.6
3/18 00:50	64.2	↑3.7
3/18 01:00	68.1	↑3.9
3/18 01:10	72.3	↑4.2
3/18 01:20	76.5	↑4.2
3/18 01:30	80.9	↑4.4
3/18 01:40	85.4	↑4.5	最大潮位差
3/18 01:50	89.8	↑4.4
3/18 02:00	94.2	↑4.4
3/18 02:10	98.6	↑4.4
3/18 02:20	102.8	↑4.2
3/18 02:30	106.8	↑4.0
3/18 02:40	110.5	↑3.7
3/18 02:50	114.0	↑3.5
3/18 03:00	117.2	↑3.2
3/18 03:10	120.1	↑2.9
3/18 03:20	122.6	↑2.5
3/18 03:30	124.7	↑2.1
3/18 03:40	126.5	↑1.8
3/18 03:50	127.9	↑1.4
3/18 04:00	129.0	↑1.1
3/18 04:10	129.7	↑0.7
3/18 04:20	130.1	↑0.4	満潮
3/18 04:30	130.2	↑0.1
3/18 04:40	130.0	↓-0.2
3/18 04:50	129.5	↓-0.5
3/18 05:00	128.8	↓-0.7
3/18 05:10	127.8	↓-1.0
3/18 05:20	126.6	↓-1.2
3/18 05:30	125.2	↓-1.4
3/18 05:40	123.5	↓-1.7
3/18 05:50	121.6	↓-1.9
3/18 06:00	119.5	↓-2.1
3/18 06:10	117.2	↓-2.3
3/18 06:20	114.6	↓-2.6
3/18 06:30	111.8	↓-2.8
3/18 06:40	108.7	↓-3.1
3/18 06:50	105.4	↓-3.3
3/18 07:00	101.8	↓-3.6
3/18 07:10	98.1	↓-3.7
3/18 07:20	94.2	↓-3.9
3/18 07:30	90.1	↓-4.1
3/18 07:40	85.9	↓-4.2
3/18 07:50	81.7	↓-4.2
3/18 08:00	77.4	↓-4.3
3/18 08:10	73.1	↓-4.3
3/18 08:20	68.9	↓-4.2
3/18 08:30	64.8	↓-4.1
3/18 08:40	60.9	↓-3.9
3/18 08:50	57.2	↓-3.7
3/18 09:00	53.7	↓-3.5
3/18 09:10	50.6	↓-3.1
3/18 09:20	47.8	↓-2.8
3/18 09:30	45.3	↓-2.5
3/18 09:40	43.2	↓-2.1
3/18 09:50	41.4	↓-1.8
3/18 10:00	40.0	↓-1.4
3/18 10:10	39.0	↓-1.0
3/18 10:20	38.3	↓-0.7
3/18 10:30	37.9	↓-0.4	干潮
3/18 10:40	37.9	0
3/18 10:50	38.2	↑0.3
3/18 11:00	38.7	↑0.5
3/18 11:10	39.6	↑0.9
3/18 11:20	40.7	↑1.1
3/18 11:30	42.0	↑1.3
3/18 11:40	43.7	↑1.7
3/18 11:50	45.5	↑1.8
3/18 12:00	47.6	↑2.1
3/18 12:10	50.0	↑2.4
3/18 12:20	52.6	↑2.6
3/18 12:30	55.5	↑2.9
3/18 12:40	58.6	↑3.1
3/18 12:50	62.0	↑3.4
3/18 13:00	65.6	↑3.6
3/18 13:10	69.5	↑3.9
3/18 13:20	73.5	↑4.0
3/18 13:30	77.7	↑4.2
3/18 13:40	82.1	↑4.4
3/18 13:50	86.5	↑4.4
3/18 14:00	91.0	↑4.5	最大潮位差
3/18 14:10	95.4	↑4.4
3/18 14:20	99.8	↑4.4
3/18 14:30	104.1	↑4.3
3/18 14:40	108.3	↑4.2
3/18 14:50	112.1	↑3.8
3/18 15:00	115.8	↑3.7
3/18 15:10	119.1	↑3.3
3/18 15:20	122.0	↑2.9
3/18 15:30	124.6	↑2.6
3/18 15:40	126.8	↑2.2
3/18 15:50	128.6	↑1.8
3/18 16:00	130.0	↑1.4
3/18 16:10	131.0	↑1.0
3/18 16:20	131.6	↑0.6
3/18 16:30	131.8	↑0.2	満潮
3/18 16:40	131.7	↓-0.1
3/18 16:50	131.2	↓-0.5
3/18 17:00	130.5	↓-0.7
3/18 17:10	129.5	↓-1.0
3/18 17:20	128.2	↓-1.3
3/18 17:30	126.6	↓-1.6
3/18 17:40	124.9	↓-1.7
3/18 17:50	122.9	↓-2.0
3/18 18:00	120.8	↓-2.1
3/18 18:10	118.4	↓-2.4
3/18 18:20	115.8	↓-2.6
3/18 18:30	113.1	↓-2.7
3/18 18:40	110.1	↓-3.0
3/18 18:50	107.0	↓-3.1
3/18 19:00	103.6	↓-3.4
3/18 19:10	100.1	↓-3.5
3/18 19:20	96.4	↓-3.7
3/18 19:30	92.5	↓-3.9
3/18 19:40	88.5	↓-4.0
3/18 19:50	84.5	↓-4.0
3/18 20:00	80.3	↓-4.2
3/18 20:10	76.2	↓-4.1
3/18 20:20	72.0	↓-4.2
3/18 20:30	68.0	↓-4.0
3/18 20:40	64.0	↓-4.0
3/18 20:50	60.3	↓-3.7
3/18 21:00	56.7	↓-3.6
3/18 21:10	53.4	↓-3.3
3/18 21:20	50.4	↓-3.0
3/18 21:30	47.7	↓-2.7
3/18 21:40	45.4	↓-2.3
3/18 21:50	43.4	↓-2.0
3/18 22:00	41.8	↓-1.6
3/18 22:10	40.6	↓-1.2
3/18 22:20	39.8	↓-0.8
3/18 22:30	39.3	↓-0.5
3/18 22:40	39.1	↓-0.2	干潮
3/18 22:50	39.3	↑0.2
3/18 23:00	39.8	↑0.5
3/18 23:10	40.5	↑0.7
3/18 23:20	41.5	↑1.0
3/18 23:30	42.8	↑1.3
3/18 23:40	44.3	↑1.5
3/18 23:50	45.9	↑1.6