21 (木)	00:16	01:40	07:13	16:02
	101cm	100cm	110cm	41cm
小潮 出 04:44 入 18:23 出 01:37 入 10:55

苫小牧（北海道）2044年04月21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
4/21 00:00	100.2	↑0.1
4/21 00:10	100.3	↑0.1	満潮
4/21 00:20	100.3	0
4/21 00:30	100.3	0
4/21 00:40	100.2	↓-0.1
4/21 00:50	100.1	↓-0.1
4/21 01:00	100.0	↓-0.1
4/21 01:10	99.9	↓-0.1
4/21 01:20	99.9	0
4/21 01:30	99.8	↓-0.1	干潮
4/21 01:40	99.8	0	干潮
4/21 01:50	99.8	0
4/21 02:00	99.9	↑0.1
4/21 02:10	100.0	↑0.1
4/21 02:20	100.1	↑0.1
4/21 02:30	100.2	↑0.1
4/21 02:40	100.4	↑0.2
4/21 02:50	100.6	↑0.2
4/21 03:00	100.9	↑0.3
4/21 03:10	101.1	↑0.2
4/21 03:20	101.3	↑0.2
4/21 03:30	101.6	↑0.3
4/21 03:40	101.9	↑0.3
4/21 03:50	102.2	↑0.3
4/21 04:00	102.5	↑0.3
4/21 04:10	102.8	↑0.3
4/21 04:20	103.1	↑0.3
4/21 04:30	103.5	↑0.4
4/21 04:40	103.9	↑0.4
4/21 04:50	104.3	↑0.4
4/21 05:00	104.7	↑0.4
4/21 05:10	105.1	↑0.4
4/21 05:20	105.6	↑0.5
4/21 05:30	106.1	↑0.5
4/21 05:40	106.6	↑0.5
4/21 05:50	107.1	↑0.5
4/21 06:00	107.6	↑0.5
4/21 06:10	108.1	↑0.5
4/21 06:20	108.6	↑0.5
4/21 06:30	109.0	↑0.4
4/21 06:40	109.3	↑0.3
4/21 06:50	109.6	↑0.3
4/21 07:00	109.8	↑0.2
4/21 07:10	109.9	↑0.1	満潮
4/21 07:20	109.9	0
4/21 07:30	109.7	↓-0.2
4/21 07:40	109.4	↓-0.3
4/21 07:50	109.0	↓-0.4
4/21 08:00	108.4	↓-0.6
4/21 08:10	107.7	↓-0.7
4/21 08:20	106.9	↓-0.8
4/21 08:30	106.0	↓-0.9
4/21 08:40	104.9	↓-1.1
4/21 08:50	103.7	↓-1.2
4/21 09:00	102.4	↓-1.3
4/21 09:10	101.0	↓-1.4
4/21 09:20	99.6	↓-1.4
4/21 09:30	98.0	↓-1.6
4/21 09:40	96.4	↓-1.6
4/21 09:50	94.8	↓-1.6
4/21 10:00	93.1	↓-1.7
4/21 10:10	91.3	↓-1.8
4/21 10:20	89.6	↓-1.7
4/21 10:30	87.7	↓-1.9
4/21 10:40	85.9	↓-1.8
4/21 10:50	84.0	↓-1.9
4/21 11:00	82.1	↓-1.9
4/21 11:10	80.1	↓-2.0
4/21 11:20	78.1	↓-2.0
4/21 11:30	76.1	↓-2.0
4/21 11:40	74.1	↓-2.0
4/21 11:50	72.1	↓-2.0
4/21 12:00	70.0	↓-2.1	最大潮位差
4/21 12:10	68.0	↓-2.0
4/21 12:20	65.9	↓-2.1	最大潮位差
4/21 12:30	63.9	↓-2.0
4/21 12:40	61.9	↓-2.0
4/21 12:50	59.9	↓-2.0
4/21 13:00	58.0	↓-1.9
4/21 13:10	56.2	↓-1.8
4/21 13:20	54.4	↓-1.8
4/21 13:30	52.7	↓-1.7
4/21 13:40	51.1	↓-1.6
4/21 13:50	49.5	↓-1.6
4/21 14:00	48.1	↓-1.4
4/21 14:10	46.8	↓-1.3
4/21 14:20	45.7	↓-1.1
4/21 14:30	44.6	↓-1.1
4/21 14:40	43.6	↓-1.0
4/21 14:50	42.8	↓-0.8
4/21 15:00	42.0	↓-0.8
4/21 15:10	41.4	↓-0.6
4/21 15:20	40.9	↓-0.5
4/21 15:30	40.5	↓-0.4
4/21 15:40	40.2	↓-0.3
4/21 15:50	40.1	↓-0.1
4/21 16:00	40.0	↓-0.1	干潮
4/21 16:10	40.0	0
4/21 16:20	40.2	↑0.2
4/21 16:30	40.5	↑0.3
4/21 16:40	40.8	↑0.3
4/21 16:50	41.3	↑0.5
4/21 17:00	42.0	↑0.7
4/21 17:10	42.7	↑0.7
4/21 17:20	43.6	↑0.9
4/21 17:30	44.6	↑1.0
4/21 17:40	45.7	↑1.1
4/21 17:50	46.9	↑1.2
4/21 18:00	48.3	↑1.4
4/21 18:10	49.7	↑1.4
4/21 18:20	51.3	↑1.6
4/21 18:30	52.9	↑1.6
4/21 18:40	54.6	↑1.7
4/21 18:50	56.4	↑1.8
4/21 19:00	58.3	↑1.9
4/21 19:10	60.1	↑1.8
4/21 19:20	62.0	↑1.9
4/21 19:30	64.0	↑2.0
4/21 19:40	65.9	↑1.9
4/21 19:50	67.8	↑1.9
4/21 20:00	69.7	↑1.9
4/21 20:10	71.6	↑1.9
4/21 20:20	73.5	↑1.9
4/21 20:30	75.3	↑1.8
4/21 20:40	77.0	↑1.7
4/21 20:50	78.8	↑1.8
4/21 21:00	80.5	↑1.7
4/21 21:10	82.1	↑1.6
4/21 21:20	83.8	↑1.7
4/21 21:30	85.3	↑1.5
4/21 21:40	86.9	↑1.6
4/21 21:50	88.3	↑1.4
4/21 22:00	89.8	↑1.5
4/21 22:10	91.2	↑1.4
4/21 22:20	92.5	↑1.3
4/21 22:30	93.8	↑1.3
4/21 22:40	95.0	↑1.2
4/21 22:50	96.2	↑1.2
4/21 23:00	97.3	↑1.1
4/21 23:10	98.3	↑1.0
4/21 23:20	99.3	↑1.0
4/21 23:30	100.1	↑0.8
4/21 23:40	100.9	↑0.8
4/21 23:50	101.6	↑0.7