20 (月)	00:49	06:20	11:03	18:05
	117cm	87cm	105cm	52cm
長潮 出 04:43 入 18:18 出 02:07 入 13:01

東静内（北海道）2009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	115.5	↑0.6
4/20 00:10	116.0	↑0.5
4/20 00:20	116.4	↑0.4
4/20 00:30	116.7	↑0.3
4/20 00:40	116.8	↑0.1	満潮
4/20 00:50	116.9	↑0.1
4/20 01:00	116.8	↓-0.1
4/20 01:10	116.6	↓-0.2
4/20 01:20	116.3	↓-0.3
4/20 01:30	115.8	↓-0.5
4/20 01:40	115.3	↓-0.5
4/20 01:50	114.6	↓-0.7
4/20 02:00	113.8	↓-0.8
4/20 02:10	113.0	↓-0.8
4/20 02:20	112.0	↓-1.0
4/20 02:30	110.9	↓-1.1
4/20 02:40	109.7	↓-1.2
4/20 02:50	108.4	↓-1.3
4/20 03:00	107.1	↓-1.3
4/20 03:10	105.7	↓-1.4
4/20 03:20	104.3	↓-1.4
4/20 03:30	102.8	↓-1.5
4/20 03:40	101.4	↓-1.4
4/20 03:50	99.9	↓-1.5
4/20 04:00	98.4	↓-1.5
4/20 04:10	96.9	↓-1.5
4/20 04:20	95.5	↓-1.4
4/20 04:30	94.2	↓-1.3
4/20 04:40	92.9	↓-1.3
4/20 04:50	91.7	↓-1.2
4/20 05:00	90.6	↓-1.1
4/20 05:10	89.6	↓-1.0
4/20 05:20	88.7	↓-0.9
4/20 05:30	88.0	↓-0.7
4/20 05:40	87.3	↓-0.7
4/20 05:50	86.9	↓-0.4
4/20 06:00	86.5	↓-0.4
4/20 06:10	86.3	↓-0.2	干潮
4/20 06:20	86.3	0	干潮
4/20 06:30	86.4	↑0.1
4/20 06:40	86.6	↑0.2
4/20 06:50	86.9	↑0.3
4/20 07:00	87.4	↑0.5
4/20 07:10	88.0	↑0.6
4/20 07:20	88.7	↑0.7
4/20 07:30	89.5	↑0.8
4/20 07:40	90.3	↑0.8
4/20 07:50	91.2	↑0.9
4/20 08:00	92.2	↑1.0
4/20 08:10	93.2	↑1.0
4/20 08:20	94.2	↑1.0
4/20 08:30	95.2	↑1.0
4/20 08:40	96.2	↑1.0
4/20 08:50	97.3	↑1.1
4/20 09:00	98.2	↑0.9
4/20 09:10	99.2	↑1.0
4/20 09:20	100.1	↑0.9
4/20 09:30	100.9	↑0.8
4/20 09:40	101.7	↑0.8
4/20 09:50	102.4	↑0.7
4/20 10:00	103.0	↑0.6
4/20 10:10	103.5	↑0.5
4/20 10:20	103.9	↑0.4
4/20 10:30	104.3	↑0.4
4/20 10:40	104.6	↑0.3
4/20 10:50	104.7	↑0.1
4/20 11:00	104.8	↑0.1	満潮
4/20 11:10	104.8	0
4/20 11:20	104.6	↓-0.2
4/20 11:30	104.4	↓-0.2
4/20 11:40	104.1	↓-0.3
4/20 11:50	103.7	↓-0.4
4/20 12:00	103.2	↓-0.5
4/20 12:10	102.5	↓-0.7
4/20 12:20	101.8	↓-0.7
4/20 12:30	101.0	↓-0.8
4/20 12:40	100.1	↓-0.9
4/20 12:50	99.1	↓-1.0
4/20 13:00	98.0	↓-1.1
4/20 13:10	96.8	↓-1.2
4/20 13:20	95.5	↓-1.3
4/20 13:30	94.1	↓-1.4
4/20 13:40	92.6	↓-1.5
4/20 13:50	91.0	↓-1.6
4/20 14:00	89.3	↓-1.7
4/20 14:10	87.6	↓-1.7
4/20 14:20	85.7	↓-1.9
4/20 14:30	83.8	↓-1.9
4/20 14:40	81.9	↓-1.9
4/20 14:50	79.9	↓-2.0
4/20 15:00	77.8	↓-2.1
4/20 15:10	75.7	↓-2.1
4/20 15:20	73.6	↓-2.1
4/20 15:30	71.5	↓-2.1
4/20 15:40	69.5	↓-2.0
4/20 15:50	67.4	↓-2.1
4/20 16:00	65.4	↓-2.0
4/20 16:10	63.5	↓-1.9
4/20 16:20	61.6	↓-1.9
4/20 16:30	59.9	↓-1.7
4/20 16:40	58.2	↓-1.7
4/20 16:50	56.7	↓-1.5
4/20 17:00	55.4	↓-1.3
4/20 17:10	54.2	↓-1.2
4/20 17:20	53.2	↓-1.0
4/20 17:30	52.4	↓-0.8
4/20 17:40	51.8	↓-0.6
4/20 17:50	51.4	↓-0.4
4/20 18:00	51.2	↓-0.2	干潮
4/20 18:10	51.2	0
4/20 18:20	51.5	↑0.3
4/20 18:30	51.9	↑0.4
4/20 18:40	52.6	↑0.7
4/20 18:50	53.6	↑1.0
4/20 19:00	54.7	↑1.1
4/20 19:10	56.1	↑1.4
4/20 19:20	57.6	↑1.5
4/20 19:30	59.3	↑1.7
4/20 19:40	61.2	↑1.9
4/20 19:50	63.2	↑2.0
4/20 20:00	65.4	↑2.2
4/20 20:10	67.7	↑2.3
4/20 20:20	70.2	↑2.5
4/20 20:30	72.7	↑2.5
4/20 20:40	75.2	↑2.5
4/20 20:50	77.9	↑2.7	最大潮位差
4/20 21:00	80.5	↑2.6
4/20 21:10	83.2	↑2.7	最大潮位差
4/20 21:20	85.9	↑2.7	最大潮位差
4/20 21:30	88.6	↑2.7	最大潮位差
4/20 21:40	91.2	↑2.6
4/20 21:50	93.8	↑2.6
4/20 22:00	96.4	↑2.6
4/20 22:10	98.8	↑2.4
4/20 22:20	101.2	↑2.4
4/20 22:30	103.5	↑2.3
4/20 22:40	105.7	↑2.2
4/20 22:50	107.8	↑2.1
4/20 23:00	109.8	↑2.0
4/20 23:10	111.6	↑1.8
4/20 23:20	113.4	↑1.8
4/20 23:30	114.9	↑1.5
4/20 23:40	116.4	↑1.5
4/20 23:50	117.7	↑1.3