31 (火)	05:29	09:39	15:11	22:36
	127cm	96cm	147cm	3cm
大潮 出 07:03 入 16:12 出 17:14 入 08:14

苫小牧（北海道）2058年12月31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
12/31 00:00	22.7	↑3.5
12/31 00:10	26.5	↑3.8
12/31 00:20	30.6	↑4.1
12/31 00:30	34.9	↑4.3
12/31 00:40	39.4	↑4.5
12/31 00:50	44.2	↑4.8
12/31 01:00	49.1	↑4.9
12/31 01:10	54.1	↑5.0
12/31 01:20	59.2	↑5.1
12/31 01:30	64.2	↑5.0
12/31 01:40	69.3	↑5.1
12/31 01:50	74.3	↑5.0
12/31 02:00	79.1	↑4.8
12/31 02:10	83.8	↑4.7
12/31 02:20	88.3	↑4.5
12/31 02:30	92.6	↑4.3
12/31 02:40	96.6	↑4.0
12/31 02:50	100.4	↑3.8
12/31 03:00	103.8	↑3.4
12/31 03:10	107.0	↑3.2
12/31 03:20	109.9	↑2.9
12/31 03:30	112.5	↑2.6
12/31 03:40	114.8	↑2.3
12/31 03:50	116.9	↑2.1
12/31 04:00	118.8	↑1.9
12/31 04:10	120.5	↑1.7
12/31 04:20	121.9	↑1.4
12/31 04:30	123.1	↑1.2
12/31 04:40	124.1	↑1.0
12/31 04:50	125.0	↑0.9
12/31 05:00	125.6	↑0.6
12/31 05:10	126.1	↑0.5
12/31 05:20	126.4	↑0.3	満潮
12/31 05:30	126.4	0
12/31 05:40	126.3	↓-0.1
12/31 05:50	125.9	↓-0.4
12/31 06:00	125.4	↓-0.5
12/31 06:10	124.6	↓-0.8
12/31 06:20	123.5	↓-1.1
12/31 06:30	122.3	↓-1.2
12/31 06:40	120.9	↓-1.4
12/31 06:50	119.3	↓-1.6
12/31 07:00	117.6	↓-1.7
12/31 07:10	115.7	↓-1.9
12/31 07:20	113.7	↓-2.0
12/31 07:30	111.7	↓-2.0
12/31 07:40	109.7	↓-2.0
12/31 07:50	107.7	↓-2.0
12/31 08:00	105.7	↓-2.0
12/31 08:10	103.9	↓-1.8
12/31 08:20	102.2	↓-1.7
12/31 08:30	100.7	↓-1.5
12/31 08:40	99.3	↓-1.4
12/31 08:50	98.1	↓-1.2
12/31 09:00	97.2	↓-0.9
12/31 09:10	96.5	↓-0.7
12/31 09:20	96.0	↓-0.5
12/31 09:30	95.7	↓-0.3	干潮
12/31 09:40	95.7	0
12/31 09:50	95.8	↑0.1
12/31 10:00	96.1	↑0.3
12/31 10:10	96.6	↑0.5
12/31 10:20	97.2	↑0.6
12/31 10:30	98.0	↑0.8
12/31 10:40	98.9	↑0.9
12/31 10:50	99.9	↑1.0
12/31 11:00	101.0	↑1.1
12/31 11:10	102.2	↑1.2
12/31 11:20	103.5	↑1.3
12/31 11:30	105.0	↑1.5
12/31 11:40	106.5	↑1.5
12/31 11:50	108.2	↑1.7
12/31 12:00	110.0	↑1.8
12/31 12:10	112.0	↑2.0
12/31 12:20	114.0	↑2.0
12/31 12:30	116.2	↑2.2
12/31 12:40	118.6	↑2.4
12/31 12:50	121.0	↑2.4
12/31 13:00	123.4	↑2.4
12/31 13:10	126.0	↑2.6
12/31 13:20	128.5	↑2.5
12/31 13:30	131.0	↑2.5
12/31 13:40	133.5	↑2.5
12/31 13:50	135.8	↑2.3
12/31 14:00	138.0	↑2.2
12/31 14:10	140.0	↑2.0
12/31 14:20	141.8	↑1.8
12/31 14:30	143.3	↑1.5
12/31 14:40	144.5	↑1.2
12/31 14:50	145.3	↑0.8
12/31 15:00	145.9	↑0.6
12/31 15:10	146.0	↑0.1	満潮
12/31 15:20	145.9	↓-0.1
12/31 15:30	145.3	↓-0.6
12/31 15:40	144.5	↓-0.8
12/31 15:50	143.2	↓-1.3
12/31 16:00	141.7	↓-1.5
12/31 16:10	139.9	↓-1.8
12/31 16:20	137.8	↓-2.1
12/31 16:30	135.5	↓-2.3
12/31 16:40	132.9	↓-2.6
12/31 16:50	130.1	↓-2.8
12/31 17:00	127.1	↓-3.0
12/31 17:10	123.9	↓-3.2
12/31 17:20	120.5	↓-3.4
12/31 17:30	116.9	↓-3.6
12/31 17:40	113.2	↓-3.7
12/31 17:50	109.3	↓-3.9
12/31 18:00	105.2	↓-4.1
12/31 18:10	100.9	↓-4.3
12/31 18:20	96.4	↓-4.5
12/31 18:30	91.8	↓-4.6
12/31 18:40	87.0	↓-4.8
12/31 18:50	82.1	↓-4.9
12/31 19:00	77.0	↓-5.1
12/31 19:10	71.8	↓-5.2
12/31 19:20	66.6	↓-5.2
12/31 19:30	61.3	↓-5.3	最大潮位差
12/31 19:40	56.0	↓-5.3	最大潮位差
12/31 19:50	50.7	↓-5.3	最大潮位差
12/31 20:00	45.6	↓-5.1
12/31 20:10	40.5	↓-5.1
12/31 20:20	35.7	↓-4.8
12/31 20:30	31.1	↓-4.6
12/31 20:40	26.8	↓-4.3
12/31 20:50	22.7	↓-4.1
12/31 21:00	19.1	↓-3.6
12/31 21:10	15.7	↓-3.4
12/31 21:20	12.8	↓-2.9
12/31 21:30	10.2	↓-2.6
12/31 21:40	8.0	↓-2.2
12/31 21:50	6.2	↓-1.8
12/31 22:00	4.8	↓-1.4
12/31 22:10	3.8	↓-1.0
12/31 22:20	3.1	↓-0.7
12/31 22:30	2.8	↓-0.3	干潮
12/31 22:40	2.8	0
12/31 22:50	3.2	↑0.4
12/31 23:00	3.8	↑0.6
12/31 23:10	4.7	↑0.9
12/31 23:20	6.0	↑1.3
12/31 23:30	7.5	↑1.5
12/31 23:40	9.3	↑1.8
12/31 23:50	11.4	↑2.1