20 (月)	04:38	10:11	15:58	22:34
	130cm	56cm	145cm	18cm
大潮 出 06:24 入 17:13 出 06:52 入 18:47

苫小牧（北海道）2034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	33.9	↑3.4
2/20 00:10	37.5	↑3.6
2/20 00:20	41.3	↑3.8
2/20 00:30	45.5	↑4.2
2/20 00:40	49.8	↑4.3
2/20 00:50	54.4	↑4.6
2/20 01:00	59.2	↑4.8
2/20 01:10	64.1	↑4.9
2/20 01:20	69.1	↑5.0
2/20 01:30	74.3	↑5.2	最大潮位差
2/20 01:40	79.4	↑5.1
2/20 01:50	84.5	↑5.1
2/20 02:00	89.5	↑5.0
2/20 02:10	94.3	↑4.8
2/20 02:20	99.0	↑4.7
2/20 02:30	103.4	↑4.4
2/20 02:40	107.5	↑4.1
2/20 02:50	111.3	↑3.8
2/20 03:00	114.8	↑3.5
2/20 03:10	117.9	↑3.1
2/20 03:20	120.6	↑2.7
2/20 03:30	122.9	↑2.3
2/20 03:40	124.9	↑2.0
2/20 03:50	126.5	↑1.6
2/20 04:00	127.8	↑1.3
2/20 04:10	128.7	↑0.9
2/20 04:20	129.3	↑0.6
2/20 04:30	129.6	↑0.3	満潮
2/20 04:40	129.7	↑0.1
2/20 04:50	129.4	↓-0.3
2/20 05:00	129.0	↓-0.4
2/20 05:10	128.3	↓-0.7
2/20 05:20	127.4	↓-0.9
2/20 05:30	126.2	↓-1.2
2/20 05:40	124.8	↓-1.4
2/20 05:50	123.2	↓-1.6
2/20 06:00	121.4	↓-1.8
2/20 06:10	119.3	↓-2.1
2/20 06:20	117.0	↓-2.3
2/20 06:30	114.4	↓-2.6
2/20 06:40	111.6	↓-2.8
2/20 06:50	108.5	↓-3.1
2/20 07:00	105.3	↓-3.2
2/20 07:10	101.9	↓-3.4
2/20 07:20	98.3	↓-3.6
2/20 07:30	94.6	↓-3.7
2/20 07:40	90.8	↓-3.8
2/20 07:50	87.0	↓-3.8
2/20 08:00	83.2	↓-3.8
2/20 08:10	79.5	↓-3.7
2/20 08:20	76.0	↓-3.5
2/20 08:30	72.6	↓-3.4
2/20 08:40	69.4	↓-3.2
2/20 08:50	66.4	↓-3.0
2/20 09:00	63.8	↓-2.6
2/20 09:10	61.5	↓-2.3
2/20 09:20	59.6	↓-1.9
2/20 09:30	58.0	↓-1.6
2/20 09:40	56.7	↓-1.3
2/20 09:50	55.9	↓-0.8
2/20 10:00	55.4	↓-0.5
2/20 10:10	55.2	↓-0.2	干潮
2/20 10:20	55.3	↑0.1
2/20 10:30	55.8	↑0.5
2/20 10:40	56.5	↑0.7
2/20 10:50	57.5	↑1.0
2/20 11:00	58.8	↑1.3
2/20 11:10	60.3	↑1.5
2/20 11:20	62.0	↑1.7
2/20 11:30	63.9	↑1.9
2/20 11:40	66.1	↑2.2
2/20 11:50	68.5	↑2.4
2/20 12:00	71.1	↑2.6
2/20 12:10	73.9	↑2.8
2/20 12:20	77.0	↑3.1
2/20 12:30	80.2	↑3.2
2/20 12:40	83.7	↑3.5
2/20 12:50	87.4	↑3.7
2/20 13:00	91.2	↑3.8
2/20 13:10	95.2	↑4.0
2/20 13:20	99.4	↑4.2
2/20 13:30	103.6	↑4.2
2/20 13:40	107.8	↑4.2
2/20 13:50	112.1	↑4.3
2/20 14:00	116.3	↑4.2
2/20 14:10	120.4	↑4.1
2/20 14:20	124.3	↑3.9
2/20 14:30	128.0	↑3.7
2/20 14:40	131.4	↑3.4
2/20 14:50	134.5	↑3.1
2/20 15:00	137.2	↑2.7
2/20 15:10	139.5	↑2.3
2/20 15:20	141.4	↑1.9
2/20 15:30	142.9	↑1.5
2/20 15:40	143.9	↑1.0
2/20 15:50	144.4	↑0.5	満潮
2/20 16:00	144.5	↑0.1
2/20 16:10	144.1	↓-0.4
2/20 16:20	143.4	↓-0.7
2/20 16:30	142.2	↓-1.2
2/20 16:40	140.7	↓-1.5
2/20 16:50	138.9	↓-1.8
2/20 17:00	136.8	↓-2.1
2/20 17:10	134.4	↓-2.4
2/20 17:20	131.7	↓-2.7
2/20 17:30	128.8	↓-2.9
2/20 17:40	125.7	↓-3.1
2/20 17:50	122.3	↓-3.4
2/20 18:00	118.7	↓-3.6
2/20 18:10	115.0	↓-3.7
2/20 18:20	111.0	↓-4.0
2/20 18:30	106.9	↓-4.1
2/20 18:40	102.6	↓-4.3
2/20 18:50	98.0	↓-4.6
2/20 19:00	93.4	↓-4.6
2/20 19:10	88.5	↓-4.9
2/20 19:20	83.5	↓-5.0
2/20 19:30	78.5	↓-5.0
2/20 19:40	73.3	↓-5.2	最大潮位差
2/20 19:50	68.1	↓-5.2	最大潮位差
2/20 20:00	63.0	↓-5.1
2/20 20:10	57.9	↓-5.1
2/20 20:20	52.9	↓-5.0
2/20 20:30	48.0	↓-4.9
2/20 20:40	43.4	↓-4.6
2/20 20:50	39.1	↓-4.3
2/20 21:00	35.1	↓-4.0
2/20 21:10	31.4	↓-3.7
2/20 21:20	28.1	↓-3.3
2/20 21:30	25.3	↓-2.8
2/20 21:40	22.8	↓-2.5
2/20 21:50	20.8	↓-2.0
2/20 22:00	19.2	↓-1.6
2/20 22:10	18.1	↓-1.1
2/20 22:20	17.4	↓-0.7
2/20 22:30	17.1	↓-0.3	干潮
2/20 22:40	17.2	↑0.1
2/20 22:50	17.7	↑0.5
2/20 23:00	18.5	↑0.8
2/20 23:10	19.6	↑1.1
2/20 23:20	21.0	↑1.4
2/20 23:30	22.7	↑1.7
2/20 23:40	24.7	↑2.0
2/20 23:50	26.9	↑2.2