20 (水)	05:33	12:31	19:33	-
	131cm	16cm	106cm	-
中潮 出 04:46 入 18:22 出 23:21 入 08:25 潮干狩り ◎ 10:46～14:32

苫小牧（北海道）2033年04月20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
4/20 00:00	77.1	↑0.1
4/20 00:10	77.4	↑0.3
4/20 00:20	78.0	↑0.6
4/20 00:30	78.8	↑0.8
4/20 00:40	79.8	↑1.0
4/20 00:50	81.0	↑1.2
4/20 01:00	82.4	↑1.4
4/20 01:10	83.8	↑1.4
4/20 01:20	85.4	↑1.6
4/20 01:30	87.1	↑1.7
4/20 01:40	88.9	↑1.8
4/20 01:50	90.7	↑1.8
4/20 02:00	92.5	↑1.8
4/20 02:10	94.5	↑2.0
4/20 02:20	96.4	↑1.9
4/20 02:30	98.5	↑2.1
4/20 02:40	100.5	↑2.0
4/20 02:50	102.7	↑2.2
4/20 03:00	104.8	↑2.1
4/20 03:10	107.0	↑2.2
4/20 03:20	109.2	↑2.2
4/20 03:30	111.5	↑2.3
4/20 03:40	113.7	↑2.2
4/20 03:50	116.0	↑2.3
4/20 04:00	118.2	↑2.2
4/20 04:10	120.3	↑2.1
4/20 04:20	122.3	↑2.0
4/20 04:30	124.2	↑1.9
4/20 04:40	125.8	↑1.6
4/20 04:50	127.3	↑1.5
4/20 05:00	128.5	↑1.2
4/20 05:10	129.4	↑0.9
4/20 05:20	130.0	↑0.6
4/20 05:30	130.2	↑0.2	満潮
4/20 05:40	130.1	↓-0.1
4/20 05:50	129.6	↓-0.5
4/20 06:00	128.7	↓-0.9
4/20 06:10	127.5	↓-1.2
4/20 06:20	125.9	↓-1.6
4/20 06:30	123.9	↓-2.0
4/20 06:40	121.7	↓-2.2
4/20 06:50	119.1	↓-2.6
4/20 07:00	116.3	↓-2.8
4/20 07:10	113.3	↓-3.0
4/20 07:20	110.1	↓-3.2
4/20 07:30	106.8	↓-3.3
4/20 07:40	103.3	↓-3.5
4/20 07:50	99.7	↓-3.6
4/20 08:00	96.0	↓-3.7
4/20 08:10	92.3	↓-3.7
4/20 08:20	88.5	↓-3.8
4/20 08:30	84.7	↓-3.8
4/20 08:40	80.9	↓-3.8
4/20 08:50	77.1	↓-3.8
4/20 09:00	73.2	↓-3.9	最大潮位差
4/20 09:10	69.3	↓-3.9	最大潮位差
4/20 09:20	65.4	↓-3.9	最大潮位差
4/20 09:30	61.6	↓-3.8
4/20 09:40	57.7	↓-3.9	最大潮位差
4/20 09:50	53.8	↓-3.9	最大潮位差
4/20 10:00	50.0	↓-3.8
4/20 10:10	46.3	↓-3.7
4/20 10:20	42.6	↓-3.7
4/20 10:30	39.1	↓-3.5
4/20 10:40	35.7	↓-3.4
4/20 10:50	32.5	↓-3.2
4/20 11:00	29.5	↓-3.0
4/20 11:10	26.7	↓-2.8
4/20 11:20	24.2	↓-2.5
4/20 11:30	22.1	↓-2.1
4/20 11:40	20.2	↓-1.9
4/20 11:50	18.7	↓-1.5
4/20 12:00	17.5	↓-1.2
4/20 12:10	16.6	↓-0.9
4/20 12:20	16.1	↓-0.5
4/20 12:30	16.0	↓-0.1	干潮
4/20 12:40	16.2	↑0.2
4/20 12:50	16.6	↑0.4
4/20 13:00	17.4	↑0.8
4/20 13:10	18.4	↑1.0
4/20 13:20	19.7	↑1.3
4/20 13:30	21.2	↑1.5
4/20 13:40	22.8	↑1.6
4/20 13:50	24.7	↑1.9
4/20 14:00	26.6	↑1.9
4/20 14:10	28.8	↑2.2
4/20 14:20	31.0	↑2.2
4/20 14:30	33.4	↑2.4
4/20 14:40	35.9	↑2.5
4/20 14:50	38.6	↑2.7
4/20 15:00	41.3	↑2.7
4/20 15:10	44.2	↑2.9
4/20 15:20	47.1	↑2.9
4/20 15:30	50.2	↑3.1
4/20 15:40	53.4	↑3.2
4/20 15:50	56.7	↑3.3
4/20 16:00	60.1	↑3.4
4/20 16:10	63.5	↑3.4
4/20 16:20	67.0	↑3.5
4/20 16:30	70.5	↑3.5
4/20 16:40	74.0	↑3.5
4/20 16:50	77.4	↑3.4
4/20 17:00	80.8	↑3.4
4/20 17:10	84.0	↑3.2
4/20 17:20	87.1	↑3.1
4/20 17:30	90.0	↑2.9
4/20 17:40	92.7	↑2.7
4/20 17:50	95.1	↑2.4
4/20 18:00	97.4	↑2.3
4/20 18:10	99.3	↑1.9
4/20 18:20	101.0	↑1.7
4/20 18:30	102.4	↑1.4
4/20 18:40	103.5	↑1.1
4/20 18:50	104.4	↑0.9
4/20 19:00	105.1	↑0.7
4/20 19:10	105.6	↑0.5
4/20 19:20	105.8	↑0.2
4/20 19:30	105.9	↑0.1	満潮
4/20 19:40	105.9	0
4/20 19:50	105.7	↓-0.2
4/20 20:00	105.4	↓-0.3
4/20 20:10	105.1	↓-0.3
4/20 20:20	104.7	↓-0.4
4/20 20:30	104.2	↓-0.5
4/20 20:40	103.6	↓-0.6
4/20 20:50	103.0	↓-0.6
4/20 21:00	102.3	↓-0.7
4/20 21:10	101.6	↓-0.7
4/20 21:20	100.8	↓-0.8
4/20 21:30	99.9	↓-0.9
4/20 21:40	98.9	↓-1.0
4/20 21:50	97.9	↓-1.0
4/20 22:00	96.8	↓-1.1
4/20 22:10	95.6	↓-1.2
4/20 22:20	94.3	↓-1.3
4/20 22:30	93.0	↓-1.3
4/20 22:40	91.7	↓-1.3
4/20 22:50	90.4	↓-1.3
4/20 23:00	89.1	↓-1.3
4/20 23:10	87.8	↓-1.3
4/20 23:20	86.6	↓-1.2
4/20 23:30	85.5	↓-1.1
4/20 23:40	84.5	↓-1.0
4/20 23:50	83.7	↓-0.8