31 (水)	08:04	00:39	18:07	13:02
	117cm	8cm	113cm	85cm
中潮 出 06:49 入 16:34 出 21:17 入 10:05

那珂湊（茨城）2042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	9.5	↓-1.3
12/31 00:10	8.5	↓-1.0
12/31 00:20	7.8	↓-0.7
12/31 00:30	7.5	↓-0.3	干潮
12/31 00:40	7.4	↓-0.1
12/31 00:50	7.6	↑0.2
12/31 01:00	8.1	↑0.5
12/31 01:10	8.8	↑0.7
12/31 01:20	9.9	↑1.1
12/31 01:30	11.2	↑1.3
12/31 01:40	12.8	↑1.6
12/31 01:50	14.7	↑1.9
12/31 02:00	16.7	↑2.0
12/31 02:10	19.1	↑2.4
12/31 02:20	21.6	↑2.5
12/31 02:30	24.3	↑2.7
12/31 02:40	27.3	↑3.0
12/31 02:50	30.4	↑3.1
12/31 03:00	33.6	↑3.2
12/31 03:10	37.0	↑3.4
12/31 03:20	40.6	↑3.6
12/31 03:30	44.2	↑3.6
12/31 03:40	47.9	↑3.7
12/31 03:50	51.7	↑3.8
12/31 04:00	55.6	↑3.9	最大潮位差
12/31 04:10	59.5	↑3.9	最大潮位差
12/31 04:20	63.3	↑3.8
12/31 04:30	67.2	↑3.9	最大潮位差
12/31 04:40	71.1	↑3.9	最大潮位差
12/31 04:50	74.9	↑3.8
12/31 05:00	78.6	↑3.7
12/31 05:10	82.3	↑3.7
12/31 05:20	85.8	↑3.5
12/31 05:30	89.2	↑3.4
12/31 05:40	92.5	↑3.3
12/31 05:50	95.6	↑3.1
12/31 06:00	98.6	↑3.0
12/31 06:10	101.3	↑2.7
12/31 06:20	103.9	↑2.6
12/31 06:30	106.2	↑2.3
12/31 06:40	108.3	↑2.1
12/31 06:50	110.2	↑1.9
12/31 07:00	111.9	↑1.7
12/31 07:10	113.3	↑1.4
12/31 07:20	114.4	↑1.1
12/31 07:30	115.3	↑0.9
12/31 07:40	116.0	↑0.7
12/31 07:50	116.4	↑0.4
12/31 08:00	116.5	↑0.1	満潮
12/31 08:10	116.5	0
12/31 08:20	116.2	↓-0.3
12/31 08:30	115.7	↓-0.5
12/31 08:40	115.1	↓-0.6
12/31 08:50	114.2	↓-0.9
12/31 09:00	113.2	↓-1.0
12/31 09:10	112.0	↓-1.2
12/31 09:20	110.7	↓-1.3
12/31 09:30	109.3	↓-1.4
12/31 09:40	107.8	↓-1.5
12/31 09:50	106.2	↓-1.6
12/31 10:00	104.6	↓-1.6
12/31 10:10	103.0	↓-1.6
12/31 10:20	101.3	↓-1.7
12/31 10:30	99.6	↓-1.7
12/31 10:40	98.0	↓-1.6
12/31 10:50	96.4	↓-1.6
12/31 11:00	94.9	↓-1.5
12/31 11:10	93.4	↓-1.5
12/31 11:20	92.0	↓-1.4
12/31 11:30	90.8	↓-1.2
12/31 11:40	89.6	↓-1.2
12/31 11:50	88.5	↓-1.1
12/31 12:00	87.6	↓-0.9
12/31 12:10	86.8	↓-0.8
12/31 12:20	86.2	↓-0.6
12/31 12:30	85.6	↓-0.6
12/31 12:40	85.3	↓-0.3
12/31 12:50	85.0	↓-0.3
12/31 13:00	85.0	0	干潮
12/31 13:10	85.0	0
12/31 13:20	85.2	↑0.2
12/31 13:30	85.5	↑0.3
12/31 13:40	86.0	↑0.5
12/31 13:50	86.6	↑0.6
12/31 14:00	87.3	↑0.7
12/31 14:10	88.1	↑0.8
12/31 14:20	89.0	↑0.9
12/31 14:30	90.0	↑1.0
12/31 14:40	91.1	↑1.1
12/31 14:50	92.3	↑1.2
12/31 15:00	93.5	↑1.2
12/31 15:10	94.8	↑1.3
12/31 15:20	96.1	↑1.3
12/31 15:30	97.5	↑1.4
12/31 15:40	98.8	↑1.3
12/31 15:50	100.2	↑1.4
12/31 16:00	101.6	↑1.4
12/31 16:10	102.9	↑1.3
12/31 16:20	104.2	↑1.3
12/31 16:30	105.5	↑1.3
12/31 16:40	106.7	↑1.2
12/31 16:50	107.8	↑1.1
12/31 17:00	108.8	↑1.0
12/31 17:10	109.7	↑0.9
12/31 17:20	110.5	↑0.8
12/31 17:30	111.2	↑0.7
12/31 17:40	111.7	↑0.5
12/31 17:50	112.1	↑0.4
12/31 18:00	112.3	↑0.2	満潮
12/31 18:10	112.3	0
12/31 18:20	112.1	↓-0.2
12/31 18:30	111.8	↓-0.3
12/31 18:40	111.2	↓-0.6
12/31 18:50	110.4	↓-0.8
12/31 19:00	109.4	↓-1.0
12/31 19:10	108.2	↓-1.2
12/31 19:20	106.7	↓-1.5
12/31 19:30	105.1	↓-1.6
12/31 19:40	103.2	↓-1.9
12/31 19:50	101.1	↓-2.1
12/31 20:00	98.9	↓-2.2
12/31 20:10	96.4	↓-2.5
12/31 20:20	93.7	↓-2.7
12/31 20:30	90.9	↓-2.8
12/31 20:40	87.9	↓-3.0
12/31 20:50	84.8	↓-3.1
12/31 21:00	81.6	↓-3.2
12/31 21:10	78.2	↓-3.4
12/31 21:20	74.8	↓-3.4
12/31 21:30	71.3	↓-3.5
12/31 21:40	67.7	↓-3.6
12/31 21:50	64.2	↓-3.5
12/31 22:00	60.6	↓-3.6
12/31 22:10	57.1	↓-3.5
12/31 22:20	53.6	↓-3.5
12/31 22:30	50.2	↓-3.4
12/31 22:40	46.9	↓-3.3
12/31 22:50	43.6	↓-3.3
12/31 23:00	40.6	↓-3.0
12/31 23:10	37.6	↓-3.0
12/31 23:20	34.9	↓-2.7
12/31 23:30	32.3	↓-2.6
12/31 23:40	29.9	↓-2.4
12/31 23:50	27.7	↓-2.2