31 (月)	07:59	00:33	18:09	12:50
	121cm	16cm	128cm	84cm
中潮 出 07:03 入 16:12 出 10:58 入 22:18

苫小牧（北海道）2057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	17.1	↓-1.2
12/31 00:10	16.3	↓-0.8
12/31 00:20	15.8	↓-0.5
12/31 00:30	15.6	↓-0.2	干潮
12/31 00:40	15.6	0
12/31 00:50	16.0	↑0.4
12/31 01:00	16.6	↑0.6
12/31 01:10	17.5	↑0.9
12/31 01:20	18.6	↑1.1
12/31 01:30	19.9	↑1.3
12/31 01:40	21.4	↑1.5
12/31 01:50	23.2	↑1.8
12/31 02:00	25.1	↑1.9
12/31 02:10	27.4	↑2.3
12/31 02:20	29.8	↑2.4
12/31 02:30	32.4	↑2.6
12/31 02:40	35.3	↑2.9
12/31 02:50	38.5	↑3.2
12/31 03:00	41.8	↑3.3
12/31 03:10	45.3	↑3.5
12/31 03:20	49.1	↑3.8
12/31 03:30	53.0	↑3.9
12/31 03:40	57.1	↑4.1
12/31 03:50	61.2	↑4.1
12/31 04:00	65.5	↑4.3	最大潮位差
12/31 04:10	69.8	↑4.3	最大潮位差
12/31 04:20	74.1	↑4.3	最大潮位差
12/31 04:30	78.3	↑4.2
12/31 04:40	82.5	↑4.2
12/31 04:50	86.5	↑4.0
12/31 05:00	90.3	↑3.8
12/31 05:10	94.0	↑3.7
12/31 05:20	97.4	↑3.4
12/31 05:30	100.6	↑3.2
12/31 05:40	103.6	↑3.0
12/31 05:50	106.2	↑2.6
12/31 06:00	108.6	↑2.4
12/31 06:10	110.8	↑2.2
12/31 06:20	112.6	↑1.8
12/31 06:30	114.3	↑1.7
12/31 06:40	115.7	↑1.4
12/31 06:50	116.9	↑1.2
12/31 07:00	117.9	↑1.0
12/31 07:10	118.7	↑0.8
12/31 07:20	119.4	↑0.7
12/31 07:30	119.9	↑0.5
12/31 07:40	120.2	↑0.3
12/31 07:50	120.4	↑0.2	満潮
12/31 08:00	120.5	↑0.1
12/31 08:10	120.3	↓-0.2
12/31 08:20	120.1	↓-0.2
12/31 08:30	119.6	↓-0.5
12/31 08:40	119.0	↓-0.6
12/31 08:50	118.2	↓-0.8
12/31 09:00	117.2	↓-1.0
12/31 09:10	116.0	↓-1.2
12/31 09:20	114.6	↓-1.4
12/31 09:30	113.1	↓-1.5
12/31 09:40	111.4	↓-1.7
12/31 09:50	109.5	↓-1.9
12/31 10:00	107.5	↓-2.0
12/31 10:10	105.5	↓-2.0
12/31 10:20	103.3	↓-2.2
12/31 10:30	101.1	↓-2.2
12/31 10:40	99.0	↓-2.1
12/31 10:50	96.9	↓-2.1
12/31 11:00	94.8	↓-2.1
12/31 11:10	92.9	↓-1.9
12/31 11:20	91.1	↓-1.8
12/31 11:30	89.5	↓-1.6
12/31 11:40	88.0	↓-1.5
12/31 11:50	86.7	↓-1.3
12/31 12:00	85.7	↓-1.0
12/31 12:10	84.8	↓-0.9
12/31 12:20	84.2	↓-0.6
12/31 12:30	83.8	↓-0.4
12/31 12:40	83.5	↓-0.3	干潮
12/31 12:50	83.4	↓-0.1	干潮
12/31 13:00	83.5	↑0.1
12/31 13:10	83.8	↑0.3
12/31 13:20	84.1	↑0.3
12/31 13:30	84.7	↑0.6
12/31 13:40	85.3	↑0.6
12/31 13:50	86.1	↑0.8
12/31 14:00	87.0	↑0.9
12/31 14:10	88.0	↑1.0
12/31 14:20	89.2	↑1.2
12/31 14:30	90.4	↑1.2
12/31 14:40	91.8	↑1.4
12/31 14:50	93.4	↑1.6
12/31 15:00	95.1	↑1.7
12/31 15:10	96.9	↑1.8
12/31 15:20	98.8	↑1.9
12/31 15:30	100.9	↑2.1
12/31 15:40	103.1	↑2.2
12/31 15:50	105.3	↑2.2
12/31 16:00	107.7	↑2.4
12/31 16:10	110.0	↑2.3
12/31 16:20	112.4	↑2.4
12/31 16:30	114.7	↑2.3
12/31 16:40	116.9	↑2.2
12/31 16:50	119.1	↑2.2
12/31 17:00	121.0	↑1.9
12/31 17:10	122.8	↑1.8
12/31 17:20	124.3	↑1.5
12/31 17:30	125.6	↑1.3
12/31 17:40	126.6	↑1.0
12/31 17:50	127.4	↑0.8
12/31 18:00	127.8	↑0.4	満潮
12/31 18:10	127.9	↑0.1
12/31 18:20	127.7	↓-0.2
12/31 18:30	127.2	↓-0.5
12/31 18:40	126.4	↓-0.8
12/31 18:50	125.3	↓-1.1
12/31 19:00	124.1	↓-1.2
12/31 19:10	122.5	↓-1.6
12/31 19:20	120.8	↓-1.7
12/31 19:30	118.9	↓-1.9
12/31 19:40	116.8	↓-2.1
12/31 19:50	114.6	↓-2.2
12/31 20:00	112.3	↓-2.3
12/31 20:10	109.8	↓-2.5
12/31 20:20	107.2	↓-2.6
12/31 20:30	104.5	↓-2.7
12/31 20:40	101.7	↓-2.8
12/31 20:50	98.8	↓-2.9
12/31 21:00	95.7	↓-3.1
12/31 21:10	92.6	↓-3.1
12/31 21:20	89.4	↓-3.2
12/31 21:30	86.0	↓-3.4
12/31 21:40	82.6	↓-3.4
12/31 21:50	79.1	↓-3.5
12/31 22:00	75.5	↓-3.6
12/31 22:10	71.9	↓-3.6
12/31 22:20	68.3	↓-3.6
12/31 22:30	64.7	↓-3.6
12/31 22:40	61.1	↓-3.6
12/31 22:50	57.6	↓-3.5
12/31 23:00	54.2	↓-3.4
12/31 23:10	51.0	↓-3.2
12/31 23:20	47.9	↓-3.1
12/31 23:30	45.1	↓-2.8
12/31 23:40	42.4	↓-2.7
12/31 23:50	40.1	↓-2.3