29 (月)	00:56	07:28	13:48	19:18
	117cm	43cm	111cm	64cm
中潮 出 04:33 入 18:32 出 02:34 入 15:24

苫小牧（北海道）2030年04月29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
4/29 00:00	113.5	↑1.1
4/29 00:10	114.5	↑1.0
4/29 00:20	115.3	↑0.8
4/29 00:30	115.8	↑0.5
4/29 00:40	116.2	↑0.4
4/29 00:50	116.4	↑0.2	満潮
4/29 01:00	116.4	0
4/29 01:10	116.2	↓-0.2
4/29 01:20	115.9	↓-0.3
4/29 01:30	115.3	↓-0.6
4/29 01:40	114.5	↓-0.8
4/29 01:50	113.5	↓-1.0
4/29 02:00	112.3	↓-1.2
4/29 02:10	110.9	↓-1.4
4/29 02:20	109.4	↓-1.5
4/29 02:30	107.6	↓-1.8
4/29 02:40	105.7	↓-1.9
4/29 02:50	103.6	↓-2.1
4/29 03:00	101.3	↓-2.3
4/29 03:10	98.8	↓-2.5
4/29 03:20	96.2	↓-2.6
4/29 03:30	93.5	↓-2.7
4/29 03:40	90.6	↓-2.9
4/29 03:50	87.7	↓-2.9
4/29 04:00	84.7	↓-3.0
4/29 04:10	81.6	↓-3.1	最大潮位差
4/29 04:20	78.5	↓-3.1	最大潮位差
4/29 04:30	75.4	↓-3.1	最大潮位差
4/29 04:40	72.3	↓-3.1	最大潮位差
4/29 04:50	69.3	↓-3.0
4/29 05:00	66.4	↓-2.9
4/29 05:10	63.5	↓-2.9
4/29 05:20	60.8	↓-2.7
4/29 05:30	58.2	↓-2.6
4/29 05:40	55.8	↓-2.4
4/29 05:50	53.5	↓-2.3
4/29 06:00	51.5	↓-2.0
4/29 06:10	49.7	↓-1.8
4/29 06:20	48.0	↓-1.7
4/29 06:30	46.6	↓-1.4
4/29 06:40	45.4	↓-1.2
4/29 06:50	44.5	↓-0.9
4/29 07:00	43.8	↓-0.7
4/29 07:10	43.3	↓-0.5
4/29 07:20	43.0	↓-0.3	干潮
4/29 07:30	43.0	0
4/29 07:40	43.2	↑0.2
4/29 07:50	43.6	↑0.4
4/29 08:00	44.2	↑0.6
4/29 08:10	45.1	↑0.9
4/29 08:20	46.2	↑1.1
4/29 08:30	47.4	↑1.2
4/29 08:40	48.9	↑1.5
4/29 08:50	50.6	↑1.7
4/29 09:00	52.5	↑1.9
4/29 09:10	54.6	↑2.1
4/29 09:20	56.8	↑2.2
4/29 09:30	59.2	↑2.4
4/29 09:40	61.8	↑2.6
4/29 09:50	64.4	↑2.6
4/29 10:00	67.2	↑2.8
4/29 10:10	70.0	↑2.8
4/29 10:20	72.9	↑2.9
4/29 10:30	75.8	↑2.9
4/29 10:40	78.7	↑2.9
4/29 10:50	81.6	↑2.9
4/29 11:00	84.4	↑2.8
4/29 11:10	87.2	↑2.8
4/29 11:20	89.8	↑2.6
4/29 11:30	92.4	↑2.6
4/29 11:40	94.8	↑2.4
4/29 11:50	97.1	↑2.3
4/29 12:00	99.2	↑2.1
4/29 12:10	101.1	↑1.9
4/29 12:20	102.9	↑1.8
4/29 12:30	104.4	↑1.5
4/29 12:40	105.8	↑1.4
4/29 12:50	107.0	↑1.2
4/29 13:00	108.0	↑1.0
4/29 13:10	108.8	↑0.8
4/29 13:20	109.4	↑0.6
4/29 13:30	109.8	↑0.4
4/29 13:40	110.0	↑0.2	満潮
4/29 13:50	110.0	0
4/29 14:00	109.9	↓-0.1
4/29 14:10	109.6	↓-0.3
4/29 14:20	109.0	↓-0.6
4/29 14:30	108.3	↓-0.7
4/29 14:40	107.5	↓-0.8
4/29 14:50	106.4	↓-1.1
4/29 15:00	105.2	↓-1.2
4/29 15:10	103.8	↓-1.4
4/29 15:20	102.2	↓-1.6
4/29 15:30	100.5	↓-1.7
4/29 15:40	98.6	↓-1.9
4/29 15:50	96.6	↓-2.0
4/29 16:00	94.5	↓-2.1
4/29 16:10	92.3	↓-2.2
4/29 16:20	90.1	↓-2.2
4/29 16:30	87.8	↓-2.3
4/29 16:40	85.5	↓-2.3
4/29 16:50	83.2	↓-2.3
4/29 17:00	80.9	↓-2.3
4/29 17:10	78.7	↓-2.2
4/29 17:20	76.6	↓-2.1
4/29 17:30	74.5	↓-2.1
4/29 17:40	72.7	↓-1.8
4/29 17:50	70.9	↓-1.8
4/29 18:00	69.3	↓-1.6
4/29 18:10	67.9	↓-1.4
4/29 18:20	66.7	↓-1.2
4/29 18:30	65.7	↓-1.0
4/29 18:40	64.9	↓-0.8
4/29 18:50	64.3	↓-0.6
4/29 19:00	63.8	↓-0.5
4/29 19:10	63.6	↓-0.2	干潮
4/29 19:20	63.6	0
4/29 19:30	63.7	↑0.1
4/29 19:40	64.1	↑0.4
4/29 19:50	64.6	↑0.5
4/29 20:00	65.3	↑0.7
4/29 20:10	66.2	↑0.9
4/29 20:20	67.2	↑1.0
4/29 20:30	68.4	↑1.2
4/29 20:40	69.8	↑1.4
4/29 20:50	71.3	↑1.5
4/29 21:00	73.0	↑1.7
4/29 21:10	74.8	↑1.8
4/29 21:20	76.8	↑2.0
4/29 21:30	78.9	↑2.1
4/29 21:40	81.2	↑2.3
4/29 21:50	83.5	↑2.3
4/29 22:00	86.0	↑2.5
4/29 22:10	88.5	↑2.5
4/29 22:20	91.1	↑2.6
4/29 22:30	93.8	↑2.7
4/29 22:40	96.5	↑2.7
4/29 22:50	99.1	↑2.6
4/29 23:00	101.8	↑2.7
4/29 23:10	104.3	↑2.5
4/29 23:20	106.8	↑2.5
4/29 23:30	109.2	↑2.4
4/29 23:40	111.4	↑2.2
4/29 23:50	113.4	↑2.0