20 (日)	03:19	06:49	12:04	20:10
	116cm	104cm	130cm	16cm
中潮 出 06:24 入 17:13 出 04:37 入 13:47

苫小牧（北海道）2039年02月20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
2/20 00:00	86.0	↑2.8
2/20 00:10	88.7	↑2.7
2/20 00:20	91.2	↑2.5
2/20 00:30	93.7	↑2.5
2/20 00:40	96.0	↑2.3
2/20 00:50	98.3	↑2.3
2/20 01:00	100.4	↑2.1
2/20 01:10	102.3	↑1.9
2/20 01:20	104.2	↑1.9
2/20 01:30	105.9	↑1.7
2/20 01:40	107.5	↑1.6
2/20 01:50	108.9	↑1.4
2/20 02:00	110.2	↑1.3
2/20 02:10	111.3	↑1.1
2/20 02:20	112.3	↑1.0
2/20 02:30	113.2	↑0.9
2/20 02:40	113.9	↑0.7
2/20 02:50	114.4	↑0.5
2/20 03:00	114.8	↑0.4
2/20 03:10	115.0	↑0.2	満潮
2/20 03:20	115.0	0
2/20 03:30	114.9	↓-0.1
2/20 03:40	114.7	↓-0.2
2/20 03:50	114.3	↓-0.4
2/20 04:00	113.8	↓-0.5
2/20 04:10	113.2	↓-0.6
2/20 04:20	112.5	↓-0.7
2/20 04:30	111.7	↓-0.8
2/20 04:40	110.9	↓-0.8
2/20 04:50	110.0	↓-0.9
2/20 05:00	109.2	↓-0.8
2/20 05:10	108.3	↓-0.9
2/20 05:20	107.5	↓-0.8
2/20 05:30	106.7	↓-0.8
2/20 05:40	106.0	↓-0.7
2/20 05:50	105.4	↓-0.6
2/20 06:00	104.8	↓-0.6
2/20 06:10	104.4	↓-0.4
2/20 06:20	104.1	↓-0.3
2/20 06:30	103.8	↓-0.3
2/20 06:40	103.7	↓-0.1	干潮
2/20 06:50	103.6	↓-0.1
2/20 07:00	103.7	↑0.1
2/20 07:10	103.9	↑0.2
2/20 07:20	104.2	↑0.3
2/20 07:30	104.5	↑0.3
2/20 07:40	105.0	↑0.5
2/20 07:50	105.5	↑0.5
2/20 08:00	106.1	↑0.6
2/20 08:10	106.8	↑0.7
2/20 08:20	107.6	↑0.8
2/20 08:30	108.5	↑0.9
2/20 08:40	109.4	↑0.9
2/20 08:50	110.4	↑1.0
2/20 09:00	111.4	↑1.0
2/20 09:10	112.5	↑1.1
2/20 09:20	113.7	↑1.2
2/20 09:30	114.9	↑1.2
2/20 09:40	116.2	↑1.3
2/20 09:50	117.5	↑1.3
2/20 10:00	118.8	↑1.3
2/20 10:10	120.1	↑1.3
2/20 10:20	121.4	↑1.3
2/20 10:30	122.7	↑1.3
2/20 10:40	123.9	↑1.2
2/20 10:50	125.1	↑1.2
2/20 11:00	126.1	↑1.0
2/20 11:10	127.1	↑1.0
2/20 11:20	127.9	↑0.8
2/20 11:30	128.6	↑0.7
2/20 11:40	129.1	↑0.5
2/20 11:50	129.4	↑0.3
2/20 12:00	129.6	↑0.2	満潮
2/20 12:10	129.6	0
2/20 12:20	129.3	↓-0.3
2/20 12:30	128.9	↓-0.4
2/20 12:40	128.2	↓-0.7
2/20 12:50	127.4	↓-0.8
2/20 13:00	126.4	↓-1.0
2/20 13:10	125.2	↓-1.2
2/20 13:20	123.8	↓-1.4
2/20 13:30	122.2	↓-1.6
2/20 13:40	120.5	↓-1.7
2/20 13:50	118.6	↓-1.9
2/20 14:00	116.5	↓-2.1
2/20 14:10	114.3	↓-2.2
2/20 14:20	111.9	↓-2.4
2/20 14:30	109.4	↓-2.5
2/20 14:40	106.8	↓-2.6
2/20 14:50	104.0	↓-2.8
2/20 15:00	101.1	↓-2.9
2/20 15:10	98.0	↓-3.1
2/20 15:20	94.8	↓-3.2
2/20 15:30	91.4	↓-3.4
2/20 15:40	88.0	↓-3.4
2/20 15:50	84.4	↓-3.6
2/20 16:00	80.7	↓-3.7
2/20 16:10	76.9	↓-3.8
2/20 16:20	73.1	↓-3.8
2/20 16:30	69.2	↓-3.9
2/20 16:40	65.2	↓-4.0	最大潮位差
2/20 16:50	61.3	↓-3.9
2/20 17:00	57.4	↓-3.9
2/20 17:10	53.6	↓-3.8
2/20 17:20	49.8	↓-3.8
2/20 17:30	46.2	↓-3.6
2/20 17:40	42.6	↓-3.6
2/20 17:50	39.3	↓-3.3
2/20 18:00	36.1	↓-3.2
2/20 18:10	33.1	↓-3.0
2/20 18:20	30.3	↓-2.8
2/20 18:30	27.8	↓-2.5
2/20 18:40	25.5	↓-2.3
2/20 18:50	23.4	↓-2.1
2/20 19:00	21.6	↓-1.8
2/20 19:10	20.0	↓-1.6
2/20 19:20	18.7	↓-1.3
2/20 19:30	17.6	↓-1.1
2/20 19:40	16.8	↓-0.8
2/20 19:50	16.2	↓-0.6
2/20 20:00	15.9	↓-0.3	干潮
2/20 20:10	15.8	↓-0.1	干潮
2/20 20:20	16.0	↑0.2
2/20 20:30	16.4	↑0.4
2/20 20:40	17.0	↑0.6
2/20 20:50	17.9	↑0.9
2/20 21:00	19.0	↑1.1
2/20 21:10	20.4	↑1.4
2/20 21:20	22.0	↑1.6
2/20 21:30	23.9	↑1.9
2/20 21:40	26.1	↑2.2
2/20 21:50	28.4	↑2.3
2/20 22:00	31.0	↑2.6
2/20 22:10	33.9	↑2.9
2/20 22:20	36.9	↑3.0
2/20 22:30	40.2	↑3.3
2/20 22:40	43.6	↑3.4
2/20 22:50	47.1	↑3.5
2/20 23:00	50.8	↑3.7
2/20 23:10	54.5	↑3.7
2/20 23:20	58.3	↑3.8
2/20 23:30	62.2	↑3.9
2/20 23:40	66.0	↑3.8
2/20 23:50	69.9	↑3.9