20 (火)	05:22	13:12	20:34	23:27
	149cm	17cm	108cm	103cm
小潮 出 04:43 入 18:17 出 08:36 入 - 潮干狩り ◎ 11:02～15:25

東静内（北海道）2010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	101.1	↑0.5
4/20 00:10	101.8	↑0.7
4/20 00:20	102.6	↑0.8
4/20 00:30	103.6	↑1.0
4/20 00:40	104.6	↑1.0
4/20 00:50	105.8	↑1.2
4/20 01:00	107.1	↑1.3
4/20 01:10	108.5	↑1.4
4/20 01:20	110.1	↑1.6
4/20 01:30	111.7	↑1.6
4/20 01:40	113.4	↑1.7
4/20 01:50	115.2	↑1.8
4/20 02:00	117.1	↑1.9
4/20 02:10	119.1	↑2.0
4/20 02:20	121.1	↑2.0
4/20 02:30	123.2	↑2.1
4/20 02:40	125.3	↑2.1
4/20 02:50	127.4	↑2.1
4/20 03:00	129.6	↑2.2
4/20 03:10	131.7	↑2.1
4/20 03:20	133.8	↑2.1
4/20 03:30	135.8	↑2.0
4/20 03:40	137.7	↑1.9
4/20 03:50	139.6	↑1.9
4/20 04:00	141.3	↑1.7
4/20 04:10	143.0	↑1.7
4/20 04:20	144.4	↑1.4
4/20 04:30	145.7	↑1.3
4/20 04:40	146.8	↑1.1
4/20 04:50	147.7	↑0.9
4/20 05:00	148.4	↑0.7
4/20 05:10	148.8	↑0.4
4/20 05:20	149.0	↑0.2	満潮
4/20 05:30	148.9	↓-0.1
4/20 05:40	148.5	↓-0.4
4/20 05:50	147.8	↓-0.7
4/20 06:00	146.8	↓-1.0
4/20 06:10	145.5	↓-1.3
4/20 06:20	144.0	↓-1.5
4/20 06:30	142.1	↓-1.9
4/20 06:40	139.9	↓-2.2
4/20 06:50	137.5	↓-2.4
4/20 07:00	134.7	↓-2.8
4/20 07:10	131.8	↓-2.9
4/20 07:20	128.5	↓-3.3
4/20 07:30	125.1	↓-3.4
4/20 07:40	121.4	↓-3.7
4/20 07:50	117.5	↓-3.9
4/20 08:00	113.4	↓-4.1
4/20 08:10	109.2	↓-4.2
4/20 08:20	104.9	↓-4.3
4/20 08:30	100.5	↓-4.4
4/20 08:40	96.0	↓-4.5
4/20 08:50	91.4	↓-4.6	最大潮位差
4/20 09:00	86.9	↓-4.5
4/20 09:10	82.3	↓-4.6	最大潮位差
4/20 09:20	77.7	↓-4.6	最大潮位差
4/20 09:30	73.2	↓-4.5
4/20 09:40	68.7	↓-4.5
4/20 09:50	64.4	↓-4.3
4/20 10:00	60.1	↓-4.3
4/20 10:10	56.0	↓-4.1
4/20 10:20	52.0	↓-4.0
4/20 10:30	48.2	↓-3.8
4/20 10:40	44.5	↓-3.7
4/20 10:50	41.0	↓-3.5
4/20 11:00	37.7	↓-3.3
4/20 11:10	34.7	↓-3.0
4/20 11:20	31.8	↓-2.9
4/20 11:30	29.2	↓-2.6
4/20 11:40	26.8	↓-2.4
4/20 11:50	24.6	↓-2.2
4/20 12:00	22.7	↓-1.9
4/20 12:10	21.0	↓-1.7
4/20 12:20	19.5	↓-1.5
4/20 12:30	18.4	↓-1.1
4/20 12:40	17.4	↓-1.0
4/20 12:50	16.8	↓-0.6
4/20 13:00	16.3	↓-0.5
4/20 13:10	16.2	↓-0.1	干潮
4/20 13:20	16.3	↑0.1
4/20 13:30	16.6	↑0.3
4/20 13:40	17.3	↑0.7
4/20 13:50	18.1	↑0.8
4/20 14:00	19.2	↑1.1
4/20 14:10	20.6	↑1.4
4/20 14:20	22.2	↑1.6
4/20 14:30	24.0	↑1.8
4/20 14:40	26.0	↑2.0
4/20 14:50	28.3	↑2.3
4/20 15:00	30.7	↑2.4
4/20 15:10	33.4	↑2.7
4/20 15:20	36.2	↑2.8
4/20 15:30	39.1	↑2.9
4/20 15:40	42.2	↑3.1
4/20 15:50	45.4	↑3.2
4/20 16:00	48.7	↑3.3
4/20 16:10	52.0	↑3.3
4/20 16:20	55.5	↑3.5
4/20 16:30	58.9	↑3.4
4/20 16:40	62.4	↑3.5
4/20 16:50	65.8	↑3.4
4/20 17:00	69.2	↑3.4
4/20 17:10	72.6	↑3.4
4/20 17:20	75.9	↑3.3
4/20 17:30	79.1	↑3.2
4/20 17:40	82.1	↑3.0
4/20 17:50	85.0	↑2.9
4/20 18:00	87.8	↑2.8
4/20 18:10	90.4	↑2.6
4/20 18:20	92.9	↑2.5
4/20 18:30	95.1	↑2.2
4/20 18:40	97.2	↑2.1
4/20 18:50	99.0	↑1.8
4/20 19:00	100.7	↑1.7
4/20 19:10	102.1	↑1.4
4/20 19:20	103.4	↑1.3
4/20 19:30	104.5	↑1.1
4/20 19:40	105.3	↑0.8
4/20 19:50	106.0	↑0.7
4/20 20:00	106.6	↑0.6
4/20 20:10	106.9	↑0.3
4/20 20:20	107.2	↑0.3
4/20 20:30	107.3	↑0.1	満潮
4/20 20:40	107.3	0
4/20 20:50	107.1	↓-0.2
4/20 21:00	106.9	↓-0.2
4/20 21:10	106.7	↓-0.2
4/20 21:20	106.3	↓-0.4
4/20 21:30	106.0	↓-0.3
4/20 21:40	105.6	↓-0.4
4/20 21:50	105.2	↓-0.4
4/20 22:00	104.8	↓-0.4
4/20 22:10	104.4	↓-0.4
4/20 22:20	104.0	↓-0.4
4/20 22:30	103.7	↓-0.3
4/20 22:40	103.4	↓-0.3
4/20 22:50	103.1	↓-0.3
4/20 23:00	102.9	↓-0.2
4/20 23:10	102.8	↓-0.1
4/20 23:20	102.7	↓-0.1	干潮
4/20 23:30	102.7	0
4/20 23:40	102.7	0
4/20 23:50	102.9	↑0.2