31 (月)	09:52	03:35	23:51	17:15
	133cm	76cm	107cm	60cm
長潮 出 06:59 入 16:09 出 00:53 入 12:29

東静内（北海道）2018年12月31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
12/31 00:00	96.6	↓-1.3
12/31 00:10	95.3	↓-1.3
12/31 00:20	94.0	↓-1.3
12/31 00:30	92.7	↓-1.3
12/31 00:40	91.3	↓-1.4
12/31 00:50	90.0	↓-1.3
12/31 01:00	88.7	↓-1.3
12/31 01:10	87.3	↓-1.4
12/31 01:20	86.0	↓-1.3
12/31 01:30	84.7	↓-1.3
12/31 01:40	83.5	↓-1.2
12/31 01:50	82.3	↓-1.2
12/31 02:00	81.1	↓-1.2
12/31 02:10	80.0	↓-1.1
12/31 02:20	79.0	↓-1.0
12/31 02:30	78.1	↓-0.9
12/31 02:40	77.3	↓-0.8
12/31 02:50	76.6	↓-0.7
12/31 03:00	76.0	↓-0.6
12/31 03:10	75.5	↓-0.5
12/31 03:20	75.2	↓-0.3
12/31 03:30	75.1	↓-0.1	干潮
12/31 03:40	75.1	0
12/31 03:50	75.3	↑0.2
12/31 04:00	75.7	↑0.4
12/31 04:10	76.2	↑0.5
12/31 04:20	76.9	↑0.7
12/31 04:30	77.9	↑1.0
12/31 04:40	79.0	↑1.1
12/31 04:50	80.2	↑1.2
12/31 05:00	81.7	↑1.5
12/31 05:10	83.3	↑1.6
12/31 05:20	85.1	↑1.8
12/31 05:30	87.0	↑1.9
12/31 05:40	89.1	↑2.1
12/31 05:50	91.3	↑2.2
12/31 06:00	93.6	↑2.3
12/31 06:10	96.0	↑2.4
12/31 06:20	98.4	↑2.4
12/31 06:30	100.9	↑2.5
12/31 06:40	103.4	↑2.5
12/31 06:50	105.9	↑2.5
12/31 07:00	108.4	↑2.5
12/31 07:10	110.8	↑2.4
12/31 07:20	113.2	↑2.4
12/31 07:30	115.5	↑2.3
12/31 07:40	117.7	↑2.2
12/31 07:50	119.8	↑2.1
12/31 08:00	121.8	↑2.0
12/31 08:10	123.7	↑1.9
12/31 08:20	125.4	↑1.7
12/31 08:30	126.9	↑1.5
12/31 08:40	128.3	↑1.4
12/31 08:50	129.4	↑1.1
12/31 09:00	130.5	↑1.1
12/31 09:10	131.3	↑0.8
12/31 09:20	131.9	↑0.6
12/31 09:30	132.4	↑0.5
12/31 09:40	132.7	↑0.3
12/31 09:50	132.8	↑0.1	満潮
12/31 10:00	132.7	↓-0.1
12/31 10:10	132.5	↓-0.2
12/31 10:20	132.1	↓-0.4
12/31 10:30	131.5	↓-0.6
12/31 10:40	130.8	↓-0.7
12/31 10:50	129.9	↓-0.9
12/31 11:00	128.9	↓-1.0
12/31 11:10	127.7	↓-1.2
12/31 11:20	126.4	↓-1.3
12/31 11:30	125.0	↓-1.4
12/31 11:40	123.4	↓-1.6
12/31 11:50	121.8	↓-1.6
12/31 12:00	120.0	↓-1.8
12/31 12:10	118.2	↓-1.8
12/31 12:20	116.2	↓-2.0
12/31 12:30	114.1	↓-2.1
12/31 12:40	112.0	↓-2.1
12/31 12:50	109.7	↓-2.3
12/31 13:00	107.4	↓-2.3
12/31 13:10	105.0	↓-2.4
12/31 13:20	102.6	↓-2.4
12/31 13:30	100.1	↓-2.5
12/31 13:40	97.6	↓-2.5
12/31 13:50	95.0	↓-2.6	最大潮位差
12/31 14:00	92.5	↓-2.5
12/31 14:10	89.9	↓-2.6	最大潮位差
12/31 14:20	87.3	↓-2.6	最大潮位差
12/31 14:30	84.8	↓-2.5
12/31 14:40	82.3	↓-2.5
12/31 14:50	79.8	↓-2.5
12/31 15:00	77.5	↓-2.3
12/31 15:10	75.2	↓-2.3
12/31 15:20	73.0	↓-2.2
12/31 15:30	70.9	↓-2.1
12/31 15:40	69.0	↓-1.9
12/31 15:50	67.2	↓-1.8
12/31 16:00	65.6	↓-1.6
12/31 16:10	64.2	↓-1.4
12/31 16:20	62.9	↓-1.3
12/31 16:30	61.9	↓-1.0
12/31 16:40	61.0	↓-0.9
12/31 16:50	60.4	↓-0.6
12/31 17:00	60.0	↓-0.4
12/31 17:10	59.8	↓-0.2	干潮
12/31 17:20	59.8	0
12/31 17:30	60.0	↑0.2
12/31 17:40	60.5	↑0.5
12/31 17:50	61.1	↑0.6
12/31 18:00	62.0	↑0.9
12/31 18:10	63.0	↑1.0
12/31 18:20	64.2	↑1.2
12/31 18:30	65.5	↑1.3
12/31 18:40	67.0	↑1.5
12/31 18:50	68.6	↑1.6
12/31 19:00	70.3	↑1.7
12/31 19:10	72.1	↑1.8
12/31 19:20	74.0	↑1.9
12/31 19:30	75.9	↑1.9
12/31 19:40	77.9	↑2.0
12/31 19:50	79.8	↑1.9
12/31 20:00	81.8	↑2.0
12/31 20:10	83.7	↑1.9
12/31 20:20	85.6	↑1.9
12/31 20:30	87.5	↑1.9
12/31 20:40	89.3	↑1.8
12/31 20:50	91.1	↑1.8
12/31 21:00	92.7	↑1.6
12/31 21:10	94.3	↑1.6
12/31 21:20	95.8	↑1.5
12/31 21:30	97.2	↑1.4
12/31 21:40	98.5	↑1.3
12/31 21:50	99.7	↑1.2
12/31 22:00	100.8	↑1.1
12/31 22:10	101.8	↑1.0
12/31 22:20	102.7	↑0.9
12/31 22:30	103.5	↑0.8
12/31 22:40	104.2	↑0.7
12/31 22:50	104.8	↑0.6
12/31 23:00	105.3	↑0.5
12/31 23:10	105.7	↑0.4
12/31 23:20	106.0	↑0.3
12/31 23:30	106.3	↑0.3
12/31 23:40	106.4	↑0.1
12/31 23:50	106.4	0	満潮