These charts were developed over the centuries by the ancient Polynesians, whose lives literally depended on their ability to catch fish. The Maori discovered that the biological clocks of all life forms resonate in predictable relationships with the sun, moon and Earth. Consulting these charts, the Maori were able to forecast the times of heightened activity for all forms of sea life wherever they were. Today, we can use them to predict the most productive times-and days-to fish anywhere in the U.S.
How to Use the Charts
If you will be fishing within the next week, look up the date on our Maori Forecast Box on the top of this page of when you will be fishing and make a note of the times indicated. Now locate your fishing spot on the map (below). Identify the applicable time zone, and using the chart times for that day, add or subtract the number of minutes shown on the nearest vertical map line.
For example: Lake McConaughy, Neb., is located as shown on the map in the Mountain time zone. The time correction for the nearest map line is minus 10 minutes. Therefore the corrected moon times for Lake McConaughy on August 17, 1998, will be as follows:
Moonrise: 12:58 a.m. minus 10 min. = 12:48 a.m.
Moonset: 03:33 p.m. minus 10 min. = 03:23 p.m.
Moon Up: 08:15 a.m. minus 10 min. = 08:05 a.m.
Moon Down: 08:43 p.m. minus 10 min. = 08:33 p.m.
"Moon Up" indicates when the moon will be directly overhead at the 12 o'clock position.
"Moon Down" indicates when the moon will be directly underfoot.
"Major Peak Periods" occur for approximately 11/2 hours on either side of Moon Up and Moon Down.
"Minor Peak Periods" occur for about half an hour around moonrise and moonset.
Also, all times are standard, so add one hour for daylight saving time. Sunrise and sunset times are calculated at 40 degrees north latitude.
**Major Peak Periods occur for up to1.5 hours either side of the Moon Up and Moon Down times. Minor Peak Periods occur for about half an hour either side of the Moonrise and Moonset times. The Peak Activity Periods and Moontimes are standard time. Add one hour for daylight saving.
April Date Phase Day Prediction Moon Up Moon Down Moonrise Moonset Sunrise Sunset 4/1/02 Mon Indifferent 03:18am 03:45pm 11:14pm 08:24am 05:44 6:24 4/2/02 Tue Poor to bad 04:13am 04:41pm 11:14pm 09:08am 05:42 6:25 4/3/02 Wed Very bad 05:09am 05:36pm 12:18am 09:58am 05:41 6:26 4/4/02 Thu Bad to fair 06:04am 06:30pm 01:16am 10:52am 05:39 6:27 4/5/02 LQ Fri Morning fair 06:56am 07:22pm 02:07am 11:47am 05:37 6:28 4/6/02 Sat Fair at night 07:47am 08:10pm 02:52am 12:44pm 05:36 6:29 4/7/02 Sun Good 08:34am 08:56pm 03:30am 01:42pm 05:34 6:30 4/8/02 Mon Good 09:18am 09:40pm 04:03am 02:40pm 05:33 6:31 4/9/02 Tue Fair 10:01am 10:22pm 04:31am 03:38pm 05:31 6:32 4/10/02 Wed Fair 10:42am 11:02pm 04:57am 04:35pm 05:30 4/7/02 Sun Good 08:34am 08:56pm 03:30am 01:42pm 05:34 6:30 4/8/02 Mon Good 09:18am 09:40pm 04:03am 02:40pm 05:33 6:31 4/9/02 Tue Fair 10:01am 10:22pm 04:31am 03:38pm 05:31 6:32 4/10/02 Wed Fair 10:42am 11:02pm 04:57am 04:35pm 05:30