31 (金)	07:00	00:34	17:24	10:13
	67cm	27cm	116cm	62cm
中潮 出 06:56 入 15:53 出 10:37 入 21:35

コイセボイ（北海道）2038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	27.4	↓-0.7
12/31 00:10	26.9	↓-0.5
12/31 00:20	26.5	↓-0.4
12/31 00:30	26.4	↓-0.1	干潮
12/31 00:40	26.4	0
12/31 00:50	26.6	↑0.2
12/31 01:00	27.0	↑0.4
12/31 01:10	27.6	↑0.6
12/31 01:20	28.3	↑0.7
12/31 01:30	29.1	↑0.8
12/31 01:40	30.1	↑1.0
12/31 01:50	31.2	↑1.1
12/31 02:00	32.4	↑1.2
12/31 02:10	33.7	↑1.3
12/31 02:20	35.1	↑1.4
12/31 02:30	36.6	↑1.5
12/31 02:40	38.1	↑1.5
12/31 02:50	39.7	↑1.6
12/31 03:00	41.4	↑1.7
12/31 03:10	43.0	↑1.6
12/31 03:20	44.7	↑1.7
12/31 03:30	46.4	↑1.7
12/31 03:40	48.1	↑1.7
12/31 03:50	49.7	↑1.6
12/31 04:00	51.3	↑1.6
12/31 04:10	52.9	↑1.6
12/31 04:20	54.4	↑1.5
12/31 04:30	55.9	↑1.5
12/31 04:40	57.3	↑1.4
12/31 04:50	58.6	↑1.3
12/31 05:00	59.8	↑1.2
12/31 05:10	60.9	↑1.1
12/31 05:20	62.0	↑1.1
12/31 05:30	62.9	↑0.9
12/31 05:40	63.7	↑0.8
12/31 05:50	64.5	↑0.8
12/31 06:00	65.1	↑0.6
12/31 06:10	65.6	↑0.5
12/31 06:20	66.1	↑0.5
12/31 06:30	66.4	↑0.3
12/31 06:40	66.6	↑0.2
12/31 06:50	66.7	↑0.1	満潮
12/31 07:00	66.8	↑0.1	満潮
12/31 07:10	66.7	↓-0.1
12/31 07:20	66.6	↓-0.1
12/31 07:30	66.4	↓-0.2
12/31 07:40	66.1	↓-0.3
12/31 07:50	65.8	↓-0.3
12/31 08:00	65.5	↓-0.3
12/31 08:10	65.1	↓-0.4
12/31 08:20	64.7	↓-0.4
12/31 08:30	64.2	↓-0.5
12/31 08:40	63.8	↓-0.4
12/31 08:50	63.3	↓-0.5
12/31 09:00	62.9	↓-0.4
12/31 09:10	62.5	↓-0.4
12/31 09:20	62.1	↓-0.4
12/31 09:30	61.8	↓-0.3
12/31 09:40	61.6	↓-0.2
12/31 09:50	61.3	↓-0.3
12/31 10:00	61.2	↓-0.1
12/31 10:10	61.1	↓-0.1	干潮
12/31 10:20	61.2	↑0.1
12/31 10:30	61.3	↑0.1
12/31 10:40	61.5	↑0.2
12/31 10:50	61.8	↑0.3
12/31 11:00	62.3	↑0.5
12/31 11:10	62.8	↑0.5
12/31 11:20	63.5	↑0.7
12/31 11:30	64.2	↑0.7
12/31 11:40	65.1	↑0.9
12/31 11:50	66.1	↑1.0
12/31 12:00	67.2	↑1.1
12/31 12:10	68.4	↑1.2
12/31 12:20	69.8	↑1.4
12/31 12:30	71.2	↑1.4
12/31 12:40	72.7	↑1.5
12/31 12:50	74.4	↑1.7
12/31 13:00	76.1	↑1.7
12/31 13:10	77.9	↑1.8
12/31 13:20	79.7	↑1.8
12/31 13:30	81.6	↑1.9
12/31 13:40	83.6	↑2.0
12/31 13:50	85.6	↑2.0
12/31 14:00	87.6	↑2.0
12/31 14:10	89.7	↑2.1
12/31 14:20	91.7	↑2.0
12/31 14:30	93.7	↑2.0
12/31 14:40	95.8	↑2.1
12/31 14:50	97.7	↑1.9
12/31 15:00	99.7	↑2.0
12/31 15:10	101.5	↑1.8
12/31 15:20	103.3	↑1.8
12/31 15:30	105.1	↑1.8
12/31 15:40	106.7	↑1.6
12/31 15:50	108.2	↑1.5
12/31 16:00	109.6	↑1.4
12/31 16:10	110.9	↑1.3
12/31 16:20	112.0	↑1.1
12/31 16:30	113.0	↑1.0
12/31 16:40	113.8	↑0.8
12/31 16:50	114.5	↑0.7
12/31 17:00	115.0	↑0.5
12/31 17:10	115.3	↑0.3
12/31 17:20	115.5	↑0.2	満潮
12/31 17:30	115.4	↓-0.1
12/31 17:40	115.2	↓-0.2
12/31 17:50	114.8	↓-0.4
12/31 18:00	114.2	↓-0.6
12/31 18:10	113.4	↓-0.8
12/31 18:20	112.5	↓-0.9
12/31 18:30	111.4	↓-1.1
12/31 18:40	110.1	↓-1.3
12/31 18:50	108.6	↓-1.5
12/31 19:00	106.9	↓-1.7
12/31 19:10	105.1	↓-1.8
12/31 19:20	103.2	↓-1.9
12/31 19:30	101.1	↓-2.1
12/31 19:40	98.9	↓-2.2
12/31 19:50	96.6	↓-2.3
12/31 20:00	94.1	↓-2.5
12/31 20:10	91.6	↓-2.5
12/31 20:20	89.0	↓-2.6
12/31 20:30	86.3	↓-2.7
12/31 20:40	83.6	↓-2.7
12/31 20:50	80.8	↓-2.8
12/31 21:00	78.0	↓-2.8
12/31 21:10	75.2	↓-2.8
12/31 21:20	72.3	↓-2.9	最大潮位差
12/31 21:30	69.5	↓-2.8
12/31 21:40	66.8	↓-2.7
12/31 21:50	64.0	↓-2.8
12/31 22:00	61.3	↓-2.7
12/31 22:10	58.7	↓-2.6
12/31 22:20	56.2	↓-2.5
12/31 22:30	53.7	↓-2.5
12/31 22:40	51.4	↓-2.3
12/31 22:50	49.1	↓-2.3
12/31 23:00	47.0	↓-2.1
12/31 23:10	45.1	↓-1.9
12/31 23:20	43.2	↓-1.9
12/31 23:30	41.5	↓-1.7
12/31 23:40	40.0	↓-1.5
12/31 23:50	38.6	↓-1.4