31 (月)	02:52	07:31	12:58	20:29
	107cm	83cm	122cm	8cm
中潮 出 06:49 入 16:34 出 03:50 入 13:57

那珂湊（茨城）2040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	80.0	↑2.9
12/31 00:10	82.8	↑2.8
12/31 00:20	85.5	↑2.7
12/31 00:30	88.0	↑2.5
12/31 00:40	90.4	↑2.4
12/31 00:50	92.7	↑2.3
12/31 01:00	94.8	↑2.1
12/31 01:10	96.7	↑1.9
12/31 01:20	98.5	↑1.8
12/31 01:30	100.1	↑1.6
12/31 01:40	101.5	↑1.4
12/31 01:50	102.7	↑1.2
12/31 02:00	103.7	↑1.0
12/31 02:10	104.5	↑0.8
12/31 02:20	105.2	↑0.7
12/31 02:30	105.6	↑0.4
12/31 02:40	105.9	↑0.3
12/31 02:50	106.0	↑0.1	満潮
12/31 03:00	106.0	0
12/31 03:10	105.7	↓-0.3
12/31 03:20	105.4	↓-0.3
12/31 03:30	104.8	↓-0.6
12/31 03:40	104.2	↓-0.6
12/31 03:50	103.4	↓-0.8
12/31 04:00	102.5	↓-0.9
12/31 04:10	101.5	↓-1.0
12/31 04:20	100.5	↓-1.0
12/31 04:30	99.3	↓-1.2
12/31 04:40	98.1	↓-1.2
12/31 04:50	96.9	↓-1.2
12/31 05:00	95.6	↓-1.3
12/31 05:10	94.4	↓-1.2
12/31 05:20	93.1	↓-1.3
12/31 05:30	91.8	↓-1.3
12/31 05:40	90.6	↓-1.2
12/31 05:50	89.4	↓-1.2
12/31 06:00	88.3	↓-1.1
12/31 06:10	87.3	↓-1.0
12/31 06:20	86.3	↓-1.0
12/31 06:30	85.5	↓-0.8
12/31 06:40	84.7	↓-0.8
12/31 06:50	84.1	↓-0.6
12/31 07:00	83.6	↓-0.5
12/31 07:10	83.2	↓-0.4
12/31 07:20	83.0	↓-0.2
12/31 07:30	82.9	↓-0.1	干潮
12/31 07:40	83.0	↑0.1
12/31 07:50	83.2	↑0.2
12/31 08:00	83.6	↑0.4
12/31 08:10	84.2	↑0.6
12/31 08:20	84.8	↑0.6
12/31 08:30	85.7	↑0.9
12/31 08:40	86.7	↑1.0
12/31 08:50	87.8	↑1.1
12/31 09:00	89.0	↑1.2
12/31 09:10	90.4	↑1.4
12/31 09:20	91.8	↑1.4
12/31 09:30	93.4	↑1.6
12/31 09:40	95.1	↑1.7
12/31 09:50	96.8	↑1.7
12/31 10:00	98.6	↑1.8
12/31 10:10	100.4	↑1.8
12/31 10:20	102.2	↑1.8
12/31 10:30	104.1	↑1.9
12/31 10:40	105.9	↑1.8
12/31 10:50	107.7	↑1.8
12/31 11:00	109.5	↑1.8
12/31 11:10	111.2	↑1.7
12/31 11:20	112.8	↑1.6
12/31 11:30	114.3	↑1.5
12/31 11:40	115.8	↑1.5
12/31 11:50	117.1	↑1.3
12/31 12:00	118.2	↑1.1
12/31 12:10	119.2	↑1.0
12/31 12:20	120.0	↑0.8
12/31 12:30	120.7	↑0.7
12/31 12:40	121.1	↑0.4
12/31 12:50	121.4	↑0.3	満潮
12/31 13:00	121.4	0
12/31 13:10	121.3	↓-0.1
12/31 13:20	120.8	↓-0.5
12/31 13:30	120.2	↓-0.6
12/31 13:40	119.3	↓-0.9
12/31 13:50	118.2	↓-1.1
12/31 14:00	116.9	↓-1.3
12/31 14:10	115.3	↓-1.6
12/31 14:20	113.5	↓-1.8
12/31 14:30	111.5	↓-2.0
12/31 14:40	109.2	↓-2.3
12/31 14:50	106.7	↓-2.5
12/31 15:00	104.1	↓-2.6
12/31 15:10	101.2	↓-2.9
12/31 15:20	98.1	↓-3.1
12/31 15:30	94.9	↓-3.2
12/31 15:40	91.5	↓-3.4
12/31 15:50	87.9	↓-3.6
12/31 16:00	84.3	↓-3.6
12/31 16:10	80.5	↓-3.8
12/31 16:20	76.6	↓-3.9
12/31 16:30	72.7	↓-3.9
12/31 16:40	68.6	↓-4.1	最大潮位差
12/31 16:50	64.6	↓-4.0
12/31 17:00	60.5	↓-4.1	最大潮位差
12/31 17:10	56.5	↓-4.0
12/31 17:20	52.5	↓-4.0
12/31 17:30	48.5	↓-4.0
12/31 17:40	44.6	↓-3.9
12/31 17:50	40.8	↓-3.8
12/31 18:00	37.1	↓-3.7
12/31 18:10	33.6	↓-3.5
12/31 18:20	30.2	↓-3.4
12/31 18:30	26.9	↓-3.3
12/31 18:40	23.9	↓-3.0
12/31 18:50	21.1	↓-2.8
12/31 19:00	18.4	↓-2.7
12/31 19:10	16.1	↓-2.3
12/31 19:20	14.0	↓-2.1
12/31 19:30	12.1	↓-1.9
12/31 19:40	10.6	↓-1.5
12/31 19:50	9.3	↓-1.3
12/31 20:00	8.3	↓-1.0
12/31 20:10	7.6	↓-0.7
12/31 20:20	7.2	↓-0.4	干潮
12/31 20:30	7.1	↓-0.1
12/31 20:40	7.3	↑0.2
12/31 20:50	7.9	↑0.6
12/31 21:00	8.7	↑0.8
12/31 21:10	9.8	↑1.1
12/31 21:20	11.2	↑1.4
12/31 21:30	12.8	↑1.6
12/31 21:40	14.7	↑1.9
12/31 21:50	16.9	↑2.2
12/31 22:00	19.3	↑2.4
12/31 22:10	22.0	↑2.7
12/31 22:20	24.8	↑2.8
12/31 22:30	27.9	↑3.1
12/31 22:40	31.1	↑3.2
12/31 22:50	34.4	↑3.3
12/31 23:00	37.9	↑3.5
12/31 23:10	41.5	↑3.6
12/31 23:20	45.2	↑3.7
12/31 23:30	49.0	↑3.8
12/31 23:40	52.8	↑3.8
12/31 23:50	56.7	↑3.9