20 (金)	02:13	08:56	15:23	20:47
	128cm	24cm	122cm	63cm
大潮 出 04:46 入 18:22 出 03:53 入 17:29 潮干狩り ○ 07:32～10:22

苫小牧（北海道）2012年04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
4/20 00:00	104.5	↑3.2
4/20 00:10	107.5	↑3.0
4/20 00:20	110.4	↑2.9
4/20 00:30	113.2	↑2.8
4/20 00:40	115.8	↑2.6
4/20 00:50	118.1	↑2.3
4/20 01:00	120.2	↑2.1
4/20 01:10	122.1	↑1.9
4/20 01:20	123.7	↑1.6
4/20 01:30	125.0	↑1.3
4/20 01:40	126.0	↑1.0
4/20 01:50	126.7	↑0.7
4/20 02:00	127.2	↑0.5
4/20 02:10	127.4	↑0.2	満潮
4/20 02:20	127.3	↓-0.1
4/20 02:30	127.0	↓-0.3
4/20 02:40	126.4	↓-0.6
4/20 02:50	125.6	↓-0.8
4/20 03:00	124.5	↓-1.1
4/20 03:10	123.2	↓-1.3
4/20 03:20	121.7	↓-1.5
4/20 03:30	120.0	↓-1.7
4/20 03:40	118.0	↓-2.0
4/20 03:50	115.8	↓-2.2
4/20 04:00	113.3	↓-2.5
4/20 04:10	110.6	↓-2.7
4/20 04:20	107.7	↓-2.9
4/20 04:30	104.6	↓-3.1
4/20 04:40	101.2	↓-3.4
4/20 04:50	97.6	↓-3.6
4/20 05:00	93.8	↓-3.8
4/20 05:10	89.8	↓-4.0
4/20 05:20	85.6	↓-4.2
4/20 05:30	81.3	↓-4.3
4/20 05:40	77.0	↓-4.3
4/20 05:50	72.6	↓-4.4
4/20 06:00	68.1	↓-4.5	最大潮位差
4/20 06:10	63.7	↓-4.4
4/20 06:20	59.4	↓-4.3
4/20 06:30	55.2	↓-4.2
4/20 06:40	51.1	↓-4.1
4/20 06:50	47.2	↓-3.9
4/20 07:00	43.6	↓-3.6
4/20 07:10	40.2	↓-3.4
4/20 07:20	37.1	↓-3.1
4/20 07:30	34.3	↓-2.8
4/20 07:40	31.8	↓-2.5
4/20 07:50	29.6	↓-2.2
4/20 08:00	27.7	↓-1.9
4/20 08:10	26.2	↓-1.5
4/20 08:20	25.0	↓-1.2
4/20 08:30	24.0	↓-1.0
4/20 08:40	23.4	↓-0.6
4/20 08:50	23.1	↓-0.3	干潮
4/20 09:00	23.1	0
4/20 09:10	23.4	↑0.3
4/20 09:20	24.0	↑0.6
4/20 09:30	24.9	↑0.9
4/20 09:40	26.0	↑1.1
4/20 09:50	27.5	↑1.5
4/20 10:00	29.2	↑1.7
4/20 10:10	31.2	↑2.0
4/20 10:20	33.5	↑2.3
4/20 10:30	36.1	↑2.6
4/20 10:40	38.9	↑2.8
4/20 10:50	42.1	↑3.2
4/20 11:00	45.5	↑3.4
4/20 11:10	49.1	↑3.6
4/20 11:20	52.9	↑3.8
4/20 11:30	57.0	↑4.1
4/20 11:40	61.1	↑4.1
4/20 11:50	65.4	↑4.3
4/20 12:00	69.8	↑4.4
4/20 12:10	74.2	↑4.4
4/20 12:20	78.6	↑4.4
4/20 12:30	82.9	↑4.3
4/20 12:40	87.1	↑4.2
4/20 12:50	91.2	↑4.1
4/20 13:00	95.1	↑3.9
4/20 13:10	98.7	↑3.6
4/20 13:20	102.2	↑3.5
4/20 13:30	105.3	↑3.1
4/20 13:40	108.2	↑2.9
4/20 13:50	110.8	↑2.6
4/20 14:00	113.1	↑2.3
4/20 14:10	115.1	↑2.0
4/20 14:20	116.8	↑1.7
4/20 14:30	118.2	↑1.4
4/20 14:40	119.4	↑1.2
4/20 14:50	120.3	↑0.9
4/20 15:00	120.9	↑0.6
4/20 15:10	121.3	↑0.4
4/20 15:20	121.5	↑0.2	満潮
4/20 15:30	121.4	↓-0.1
4/20 15:40	121.1	↓-0.3
4/20 15:50	120.6	↓-0.5
4/20 16:00	119.9	↓-0.7
4/20 16:10	118.9	↓-1.0
4/20 16:20	117.7	↓-1.2
4/20 16:30	116.3	↓-1.4
4/20 16:40	114.7	↓-1.6
4/20 16:50	112.8	↓-1.9
4/20 17:00	110.7	↓-2.1
4/20 17:10	108.4	↓-2.3
4/20 17:20	105.9	↓-2.5
4/20 17:30	103.3	↓-2.6
4/20 17:40	100.5	↓-2.8
4/20 17:50	97.5	↓-3.0
4/20 18:00	94.5	↓-3.0
4/20 18:10	91.4	↓-3.1
4/20 18:20	88.4	↓-3.0
4/20 18:30	85.3	↓-3.1
4/20 18:40	82.3	↓-3.0
4/20 18:50	79.4	↓-2.9
4/20 19:00	76.7	↓-2.7
4/20 19:10	74.1	↓-2.6
4/20 19:20	71.8	↓-2.3
4/20 19:30	69.7	↓-2.1
4/20 19:40	67.8	↓-1.9
4/20 19:50	66.2	↓-1.6
4/20 20:00	64.9	↓-1.3
4/20 20:10	63.9	↓-1.0
4/20 20:20	63.1	↓-0.8
4/20 20:30	62.6	↓-0.5
4/20 20:40	62.3	↓-0.3	干潮
4/20 20:50	62.3	0
4/20 21:00	62.5	↑0.2
4/20 21:10	62.9	↑0.4
4/20 21:20	63.5	↑0.6
4/20 21:30	64.4	↑0.9
4/20 21:40	65.4	↑1.0
4/20 21:50	66.6	↑1.2
4/20 22:00	67.9	↑1.3
4/20 22:10	69.5	↑1.6
4/20 22:20	71.2	↑1.7
4/20 22:30	73.1	↑1.9
4/20 22:40	75.3	↑2.2
4/20 22:50	77.5	↑2.2
4/20 23:00	80.0	↑2.5
4/20 23:10	82.7	↑2.7
4/20 23:20	85.5	↑2.8
4/20 23:30	88.5	↑3.0
4/20 23:40	91.6	↑3.1
4/20 23:50	94.8	↑3.2