31 (火)	07:19	12:08	17:30	-
	122cm	86cm	131cm	-
中潮 出 07:03 入 16:11 出 10:25 入 21:04

苫小牧（北海道）2019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	17.2	0
12/31 00:10	17.4	↑0.2
12/31 00:20	18.0	↑0.6
12/31 00:30	18.8	↑0.8
12/31 00:40	19.8	↑1.0
12/31 00:50	21.1	↑1.3
12/31 01:00	22.6	↑1.5
12/31 01:10	24.3	↑1.7
12/31 01:20	26.2	↑1.9
12/31 01:30	28.2	↑2.0
12/31 01:40	30.5	↑2.3
12/31 01:50	33.0	↑2.5
12/31 02:00	35.8	↑2.8
12/31 02:10	38.7	↑2.9
12/31 02:20	41.8	↑3.1
12/31 02:30	45.2	↑3.4
12/31 02:40	48.7	↑3.5
12/31 02:50	52.5	↑3.8
12/31 03:00	56.4	↑3.9
12/31 03:10	60.4	↑4.0
12/31 03:20	64.6	↑4.2
12/31 03:30	68.9	↑4.3	最大潮位差
12/31 03:40	73.1	↑4.2
12/31 03:50	77.4	↑4.3	最大潮位差
12/31 04:00	81.6	↑4.2
12/31 04:10	85.8	↑4.2
12/31 04:20	89.8	↑4.0
12/31 04:30	93.6	↑3.8
12/31 04:40	97.2	↑3.6
12/31 04:50	100.6	↑3.4
12/31 05:00	103.7	↑3.1
12/31 05:10	106.5	↑2.8
12/31 05:20	109.1	↑2.6
12/31 05:30	111.4	↑2.3
12/31 05:40	113.4	↑2.0
12/31 05:50	115.1	↑1.7
12/31 06:00	116.6	↑1.5
12/31 06:10	117.8	↑1.2
12/31 06:20	118.8	↑1.0
12/31 06:30	119.7	↑0.9
12/31 06:40	120.3	↑0.6
12/31 06:50	120.8	↑0.5
12/31 07:00	121.1	↑0.3
12/31 07:10	121.3	↑0.2	満潮
12/31 07:20	121.3	0
12/31 07:30	121.2	↓-0.1
12/31 07:40	121.0	↓-0.2
12/31 07:50	120.6	↓-0.4
12/31 08:00	120.1	↓-0.5
12/31 08:10	119.4	↓-0.7
12/31 08:20	118.6	↓-0.8
12/31 08:30	117.5	↓-1.1
12/31 08:40	116.3	↓-1.2
12/31 08:50	114.9	↓-1.4
12/31 09:00	113.4	↓-1.5
12/31 09:10	111.7	↓-1.7
12/31 09:20	109.9	↓-1.8
12/31 09:30	107.9	↓-2.0
12/31 09:40	105.8	↓-2.1
12/31 09:50	103.7	↓-2.1
12/31 10:00	101.6	↓-2.1
12/31 10:10	99.5	↓-2.1
12/31 10:20	97.4	↓-2.1
12/31 10:30	95.4	↓-2.0
12/31 10:40	93.5	↓-1.9
12/31 10:50	91.8	↓-1.7
12/31 11:00	90.3	↓-1.5
12/31 11:10	89.0	↓-1.3
12/31 11:20	87.8	↓-1.2
12/31 11:30	86.9	↓-0.9
12/31 11:40	86.3	↓-0.6
12/31 11:50	85.8	↓-0.5
12/31 12:00	85.6	↓-0.2	干潮
12/31 12:10	85.6	0
12/31 12:20	85.7	↑0.1
12/31 12:30	86.0	↑0.3
12/31 12:40	86.5	↑0.5
12/31 12:50	87.1	↑0.6
12/31 13:00	87.9	↑0.8
12/31 13:10	88.8	↑0.9
12/31 13:20	89.7	↑0.9
12/31 13:30	90.8	↑1.1
12/31 13:40	92.0	↑1.2
12/31 13:50	93.3	↑1.3
12/31 14:00	94.7	↑1.4
12/31 14:10	96.2	↑1.5
12/31 14:20	97.8	↑1.6
12/31 14:30	99.5	↑1.7
12/31 14:40	101.4	↑1.9
12/31 14:50	103.4	↑2.0
12/31 15:00	105.4	↑2.0
12/31 15:10	107.6	↑2.2
12/31 15:20	109.8	↑2.2
12/31 15:30	112.1	↑2.3
12/31 15:40	114.4	↑2.3
12/31 15:50	116.7	↑2.3
12/31 16:00	119.0	↑2.3
12/31 16:10	121.1	↑2.1
12/31 16:20	123.1	↑2.0
12/31 16:30	125.0	↑1.9
12/31 16:40	126.6	↑1.6
12/31 16:50	128.0	↑1.4
12/31 17:00	129.1	↑1.1
12/31 17:10	129.9	↑0.8
12/31 17:20	130.4	↑0.5	満潮
12/31 17:30	130.5	↑0.1	満潮
12/31 17:40	130.3	↓-0.2
12/31 17:50	129.8	↓-0.5
12/31 18:00	128.9	↓-0.9
12/31 18:10	127.7	↓-1.2
12/31 18:20	126.3	↓-1.4
12/31 18:30	124.6	↓-1.7
12/31 18:40	122.6	↓-2.0
12/31 18:50	120.4	↓-2.2
12/31 19:00	118.0	↓-2.4
12/31 19:10	115.5	↓-2.5
12/31 19:20	112.8	↓-2.7
12/31 19:30	110.0	↓-2.8
12/31 19:40	107.1	↓-2.9
12/31 19:50	104.1	↓-3.0
12/31 20:00	101.0	↓-3.1
12/31 20:10	97.9	↓-3.1
12/31 20:20	94.6	↓-3.3
12/31 20:30	91.2	↓-3.4
12/31 20:40	87.8	↓-3.4
12/31 20:50	84.3	↓-3.5
12/31 21:00	80.7	↓-3.6
12/31 21:10	77.1	↓-3.6
12/31 21:20	73.4	↓-3.7
12/31 21:30	69.6	↓-3.8
12/31 21:40	65.8	↓-3.8
12/31 21:50	62.1	↓-3.7
12/31 22:00	58.3	↓-3.8
12/31 22:10	54.7	↓-3.6
12/31 22:20	51.1	↓-3.6
12/31 22:30	47.7	↓-3.4
12/31 22:40	44.4	↓-3.3
12/31 22:50	41.3	↓-3.1
12/31 23:00	38.5	↓-2.8
12/31 23:10	35.9	↓-2.6
12/31 23:20	33.7	↓-2.2
12/31 23:30	31.7	↓-2.0
12/31 23:40	30.1	↓-1.6
12/31 23:50	28.7	↓-1.4