20 (土)	01:49	07:34	13:11	19:39
	109cm	64cm	107cm	37cm
中潮 出 04:48 入 18:22 出 14:44 入 03:18

古武井（北海道）2024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	96.8	↑2.1
4/20 00:10	98.8	↑2.0
4/20 00:20	100.6	↑1.8
4/20 00:30	102.2	↑1.6
4/20 00:40	103.7	↑1.5
4/20 00:50	104.9	↑1.2
4/20 01:00	106.0	↑1.1
4/20 01:10	106.9	↑0.9
4/20 01:20	107.6	↑0.7
4/20 01:30	108.0	↑0.4
4/20 01:40	108.3	↑0.3	満潮
4/20 01:50	108.3	0
4/20 02:00	108.2	↓-0.1
4/20 02:10	107.8	↓-0.4
4/20 02:20	107.3	↓-0.5
4/20 02:30	106.6	↓-0.7
4/20 02:40	105.7	↓-0.9
4/20 02:50	104.6	↓-1.1
4/20 03:00	103.4	↓-1.2
4/20 03:10	102.0	↓-1.4
4/20 03:20	100.5	↓-1.5
4/20 03:30	98.9	↓-1.6
4/20 03:40	97.2	↓-1.7
4/20 03:50	95.4	↓-1.8
4/20 04:00	93.5	↓-1.9
4/20 04:10	91.5	↓-2.0
4/20 04:20	89.5	↓-2.0
4/20 04:30	87.5	↓-2.0
4/20 04:40	85.4	↓-2.1
4/20 04:50	83.4	↓-2.0
4/20 05:00	81.4	↓-2.0
4/20 05:10	79.4	↓-2.0
4/20 05:20	77.5	↓-1.9
4/20 05:30	75.6	↓-1.9
4/20 05:40	73.8	↓-1.8
4/20 05:50	72.2	↓-1.6
4/20 06:00	70.6	↓-1.6
4/20 06:10	69.1	↓-1.5
4/20 06:20	67.8	↓-1.3
4/20 06:30	66.7	↓-1.1
4/20 06:40	65.7	↓-1.0
4/20 06:50	64.8	↓-0.9
4/20 07:00	64.2	↓-0.6
4/20 07:10	63.7	↓-0.5
4/20 07:20	63.3	↓-0.4
4/20 07:30	63.2	↓-0.1	干潮
4/20 07:40	63.2	0
4/20 07:50	63.5	↑0.3
4/20 08:00	63.9	↑0.4
4/20 08:10	64.4	↑0.5
4/20 08:20	65.2	↑0.8
4/20 08:30	66.1	↑0.9
4/20 08:40	67.2	↑1.1
4/20 08:50	68.4	↑1.2
4/20 09:00	69.8	↑1.4
4/20 09:10	71.3	↑1.5
4/20 09:20	72.9	↑1.6
4/20 09:30	74.6	↑1.7
4/20 09:40	76.4	↑1.8
4/20 09:50	78.3	↑1.9
4/20 10:00	80.2	↑1.9
4/20 10:10	82.2	↑2.0
4/20 10:20	84.2	↑2.0
4/20 10:30	86.2	↑2.0
4/20 10:40	88.2	↑2.0
4/20 10:50	90.2	↑2.0
4/20 11:00	92.1	↑1.9
4/20 11:10	94.0	↑1.9
4/20 11:20	95.8	↑1.8
4/20 11:30	97.5	↑1.7
4/20 11:40	99.1	↑1.6
4/20 11:50	100.6	↑1.5
4/20 12:00	101.9	↑1.3
4/20 12:10	103.1	↑1.2
4/20 12:20	104.2	↑1.1
4/20 12:30	105.0	↑0.8
4/20 12:40	105.7	↑0.7
4/20 12:50	106.2	↑0.5
4/20 13:00	106.5	↑0.3
4/20 13:10	106.7	↑0.2	満潮
4/20 13:20	106.5	↓-0.2
4/20 13:30	106.2	↓-0.3
4/20 13:40	105.7	↓-0.5
4/20 13:50	105.0	↓-0.7
4/20 14:00	104.1	↓-0.9
4/20 14:10	102.9	↓-1.2
4/20 14:20	101.6	↓-1.3
4/20 14:30	100.0	↓-1.6
4/20 14:40	98.3	↓-1.7
4/20 14:50	96.4	↓-1.9
4/20 15:00	94.4	↓-2.0
4/20 15:10	92.2	↓-2.2
4/20 15:20	89.8	↓-2.4
4/20 15:30	87.3	↓-2.5
4/20 15:40	84.8	↓-2.5
4/20 15:50	82.1	↓-2.7
4/20 16:00	79.3	↓-2.8
4/20 16:10	76.5	↓-2.8
4/20 16:20	73.7	↓-2.8
4/20 16:30	70.8	↓-2.9
4/20 16:40	68.0	↓-2.8
4/20 16:50	65.1	↓-2.9
4/20 17:00	62.3	↓-2.8
4/20 17:10	59.6	↓-2.7
4/20 17:20	56.9	↓-2.7
4/20 17:30	54.3	↓-2.6
4/20 17:40	51.8	↓-2.5
4/20 17:50	49.5	↓-2.3
4/20 18:00	47.3	↓-2.2
4/20 18:10	45.3	↓-2.0
4/20 18:20	43.4	↓-1.9
4/20 18:30	41.7	↓-1.7
4/20 18:40	40.3	↓-1.4
4/20 18:50	39.0	↓-1.3
4/20 19:00	38.0	↓-1.0
4/20 19:10	37.2	↓-0.8
4/20 19:20	36.6	↓-0.6
4/20 19:30	36.3	↓-0.3	干潮
4/20 19:40	36.2	↓-0.1
4/20 19:50	36.4	↑0.2
4/20 20:00	36.9	↑0.5
4/20 20:10	37.5	↑0.6
4/20 20:20	38.4	↑0.9
4/20 20:30	39.6	↑1.2
4/20 20:40	41.0	↑1.4
4/20 20:50	42.6	↑1.6
4/20 21:00	44.4	↑1.8
4/20 21:10	46.4	↑2.0
4/20 21:20	48.6	↑2.2
4/20 21:30	51.0	↑2.4
4/20 21:40	53.5	↑2.5
4/20 21:50	56.2	↑2.7
4/20 22:00	59.0	↑2.8
4/20 22:10	61.8	↑2.8
4/20 22:20	64.8	↑3.0
4/20 22:30	67.9	↑3.1	最大潮位差
4/20 22:40	71.0	↑3.1	最大潮位差
4/20 22:50	74.1	↑3.1	最大潮位差
4/20 23:00	77.2	↑3.1	最大潮位差
4/20 23:10	80.3	↑3.1	最大潮位差
4/20 23:20	83.4	↑3.1	最大潮位差
4/20 23:30	86.4	↑3.0
4/20 23:40	89.3	↑2.9
4/20 23:50	92.1	↑2.8