|
The lunitidal interval is defined as
the time interval between the transit of the Moon over
the local or Greenwich meridian and the next local
high water or low water. It can be described as local
or Greenwich, depending on the transit reference meridian;
assumed to be local unless otherwise specified.
Lunitidal intervals can only be used to estimate the
tides at places where the semidiurnal component of
the tide is dominant.
The lunitidal interval changes through the lunar phase
cycle. The variation about the mean is approximately
+/- 30 minutes.
Please Note:
Lunitidal interval are considered obsolete and should
not be used for navigation or any other critical purpose.
Users are advised that standard port
predictions are available at www.bom.gov.au/oceanography/.
The State Authorities produce their own Official Tide
Tables with time differences for secondary ports.
Australian National Tide Tables and Seafarer Tides
provides National coverage. Automatic Tidal predictions
for Secondary ports are available with Seafarer Tides.
Further information about lunitidal intervals refer
to www.akueck.de/tiden.htm*
*The content found by using this
link is not created, controlled or approved by
this department. No responsibility is taken for
the consequences of viewing content on this site.
All locations listed in the Australian National Tide
Tables 2005 edition are listed below.
Port #
|
Port Name
|
Latitude
|
Longitude
|
Time Zone
|
Local Lunitidal
Interval
|
|
|
|
(South)
|
(East)
|
|
Hours
|
Minutes
|
| 20080 |
MAWSON |
67 |
36 |
62 |
52 |
-600 |
0 |
-8 |
| 20090 |
HEARD I. |
53 |
1 |
73 |
23 |
-500 |
11 |
30 |
| 20100 |
DAVIS |
68 |
34 |
77 |
58 |
-700 |
0 |
-4 |
| 20120 |
CASEY |
66 |
16 |
110 |
31 |
-800 |
0 |
-10 |
| 20130 |
PORT MARTIN |
66 |
50 |
141 |
25 |
-1000 |
11 |
14 |
| 20140 |
COMMONWEALTH BAY |
67 |
0 |
142 |
40 |
-1000 |
10 |
47 |
| 20180 |
ROSS I. |
77 |
52 |
166 |
48 |
-1000 |
12 |
22 |
| 46280 |
COCOS I. |
12 |
7 |
96 |
53 |
-630 |
4 |
59 |
| 46290 |
CHRISTMAS I. |
10 |
24 |
105 |
43 |
-700 |
7 |
20 |
| 54150 |
SUAI |
9 |
21 |
125 |
16 |
-900 |
0 |
-35 |
| 54172 |
COM (KUN) |
8 |
22 |
127 |
4 |
-900 |
0 |
60 |
| 54178 |
KARABELA |
8 |
29 |
126 |
16 |
-900 |
0 |
-12 |
| 54179 |
HERA |
8 |
32 |
125 |
41 |
-900 |
0 |
-10 |
| 54180 |
DILI |
8 |
34 |
125 |
33 |
-900 |
0 |
-2 |
| 54181 |
OECUSSI |
9 |
11 |
124 |
24 |
-900 |
11 |
34 |
| 55420 |
MERAUKE |
8 |
32 |
140 |
20 |
-1000 |
1 |
1 |
| 55430 |
TURU CAY |
9 |
49 |
141 |
25 |
-1000 |
3 |
44 |
| 55434 |
BOIGU I. |
9 |
13 |
142 |
13 |
-1000 |
5 |
17 |
| 55440 |
DARU |
9 |
4 |
143 |
12 |
-1000 |
10 |
49 |
| 55445 |
BRISTOW I. |
9 |
6 |
143 |
17 |
-1000 |
10 |
42 |
| 55470 |
UMUDA I. |
8 |
30 |
143 |
47 |
-1000 |
10 |
38 |
| 55480 |
GOARIBARI I. |
7 |
45 |
144 |
12 |
-1000 |
10 |
46 |
| 55481 |
URAMU I. |
7 |
40 |
144 |
38 |
-1000 |
10 |
32 |
| 55490 |
OMATI |
7 |
25 |
143 |
57 |
-1000 |
0 |
22 |
| 55510 |
KIKORI |
7 |
25 |
144 |
15 |
-1000 |
0 |
-19 |
| 55515 |
KUMUL TKR MRG |
8 |
4 |
144 |
34 |
-1000 |
9 |
53 |
| 55520 |
PORT ROMILLY |
7 |
41 |
144 |
49 |
-1000 |
10 |
23 |
| 55540 |
KEREMA |
7 |
58 |
145 |
45 |
-1000 |
9 |
47 |
| 55580 |
PORT MORESBY |
9 |
29 |
147 |
8 |
-1000 |
9 |
27 |
| 55581 |
BOOTLESS INLET |
9 |
30 |
147 |
15 |
-1000 |
9 |
8 |
| 55600 |
KALIGOLA POINT |
10 |
9 |
148 |
16 |
-1000 |
9 |
20 |
| 55610 |
DEDELE POINT |
10 |
14 |
148 |
44 |
-1000 |
9 |
23 |
| 55615 |
MARGARIDA |
10 |
20 |
149 |
20 |
-1000 |
9 |
26 |
| 55620 |
BONARUA I. |
10 |
24 |
149 |
21 |
-1000 |
9 |
26 |
| 55630 |
DELAMI I |
10 |
32 |
149 |
49 |
-1000 |
9 |
28 |
| 55633 |
AVA POINT |
10 |
38 |
149 |
48 |
-1000 |
10 |
1 |
| 55650 |
BRUMER I. |
10 |
46 |
150 |
22 |
-1000 |
9 |
35 |
| 55655 |
BAIIRI I. |
10 |
54 |
150 |
43 |
-1000 |
9 |
30 |
| 55659 |
DOINI I. |
10 |
42 |
150 |
42 |
-1000 |
9 |
42 |
| 55660 |
SAMARAI I. |
10 |
37 |
150 |
40 |
-1000 |
10 |
1 |
| 55669 |
BENTLEY I. |
10 |
43 |
151 |
15 |
-1000 |
10 |
12 |
| 55670 |
BASILAKI, PITT BAY |
10 |
31 |
151 |
8 |
-1000 |
10 |
59 |
| 55671 |
SHORTLAND I. |
10 |
32 |
151 |
5 |
-1000 |
10 |
30 |
| 55672 |
HUMMOCK I. |
10 |
35 |
151 |
22 |
-1000 |
9 |
50 |
| 55673 |
KEGAWAM I. |
10 |
21 |
151 |
23 |
-1000 |
10 |
17 |
| 55675 |
BLAKENEY I. |
10 |
25 |
151 |
13 |
-1000 |
11 |
49 |
| 55690 |
MISIMA |
10 |
42 |
152 |
47 |
-1000 |
10 |
54 |
| 55710 |
DUCHATEAU I. |
11 |
17 |
152 |
22 |
-1000 |
9 |
24 |
| 55750 |
HATI LAWI HARBOUR |
11 |
16 |
153 |
10 |
-1000 |
9 |
52 |
| 55780 |
CAPE DELIVERANCE |
11 |
24 |
154 |
17 |
-1000 |
10 |
4 |
| 55830 |
ALOTAU |
10 |
19 |
150 |
27 |
-1000 |
10 |
33 |
| 55832 |
MAPAMOIWA |
9 |
37 |
150 |
26 |
-1000 |
11 |
59 |
| 55840 |
NUAKATA I. |
10 |
17 |
151 |
0 |
-1000 |
10 |
43 |
| 55850 |
EAST CAPE |
10 |
15 |
150 |
52 |
-1000 |
12 |
10 |
| 55870 |
WOODLARK I. |
9 |
15 |
152 |
58 |
-1000 |
11 |
14 |
| 55871 |
SHARP I. |
9 |
19 |
152 |
31 |
-1000 |
8 |
25 |
| 55910 |
AIGURA POINT |
10 |
8 |
150 |
15 |
-1000 |
6 |
6 |
| 55940 |
TUFI HARBOUR |
9 |
5 |
149 |
19 |
-1000 |
2 |
33 |
| 55951 |
ORO BAY |
8 |
53 |
148 |
29 |
-1000 |
2 |
57 |
| 55954 |
EVE SHOAL |
8 |
31 |
148 |
25 |
-1000 |
3 |
6 |
| 55956 |
CAUTION POINT |
8 |
17 |
148 |
12 |
-1000 |
2 |
45 |
| 55960 |
KANAPU I. |
8 |
20 |
150 |
7 |
-1000 |
3 |
21 |
| 55980 |
LAE |
6 |
45 |
147 |
0 |
-1000 |
2 |
49 |
| 55990 |
DREGER HARBOUR |
6 |
39 |
147 |
53 |
-1000 |
2 |
44 |
| 56000 |
FINSCH HARBOUR |
6 |
33 |
147 |
51 |
-1000 |
2 |
27 |
| 56020 |
UMBOI I. |
5 |
42 |
148 |
5 |
-1000 |
6 |
19 |
| 56030 |
MADANG HARBOUR |
5 |
13 |
145 |
48 |
-1000 |
6 |
57 |
| 56050 |
BOGIA |
4 |
17 |
144 |
58 |
-1000 |
7 |
7 |
| 56060 |
SEPIK R. |
3 |
53 |
144 |
36 |
-1000 |
7 |
15 |
| 56070 |
WEWAK |
3 |
33 |
143 |
38 |
-1000 |
7 |
11 |
| 56100 |
VANIMO |
2 |
41 |
141 |
18 |
-1000 |
6 |
42 |
| 56120 |
STONE I. |
2 |
15 |
146 |
33 |
-1000 |
7 |
18 |
| 56130 |
SEEADLER HARBOUR |
2 |
2 |
147 |
22 |
-1000 |
7 |
13 |
| 56175 |
ELEONORA BAY |
5 |
32 |
149 |
43 |
-1000 |
5 |
18 |
| 56180 |
KIMBE |
5 |
31 |
150 |
6 |
-1000 |
7 |
41 |
| 56200 |
RABAUL |
4 |
12 |
152 |
11 |
-1000 |
6 |
5 |
| 56202 |
FOUL BAY |
4 |
10 |
152 |
25 |
-1000 |
6 |
59 |
| 56210 |
KOKOPO |
4 |
21 |
152 |
17 |
-1000 |
6 |
12 |
| 56240 |
KAVIENG |
2 |
35 |
150 |
48 |
-1000 |
2 |
60 |
| 56300 |
AMBITLE I. |
4 |
6 |
153 |
35 |
-1000 |
2 |
58 |
| 56330 |
SOROKEN |
5 |
34 |
154 |
43 |
-1000 |
2 |
29 |
| 56338 |
TOROKINA |
6 |
16 |
155 |
2 |
-1000 |
3 |
27 |
| 56340 |
ANEWA BAY |
6 |
11 |
155 |
33 |
-1000 |
2 |
54 |
| 56341 |
EVERENTA I. |
6 |
49 |
155 |
49 |
-1000 |
2 |
41 |
| 56350 |
KIETA HARBOUR |
6 |
13 |
155 |
38 |
-1000 |
2 |
53 |
| 56362 |
KATURASELE |
7 |
12 |
156 |
54 |
-1100 |
2 |
11 |
| 56380 |
VAGHENA I. |
7 |
28 |
157 |
44 |
-1100 |
1 |
41 |
| 56460 |
GIZO ANCHORAGE |
8 |
6 |
156 |
51 |
-1100 |
0 |
1 |
| 56470 |
BLACKETT STRAIT |
8 |
8 |
157 |
8 |
-1100 |
0 |
16 |
| 56480 |
MUNDA POINT |
8 |
21 |
157 |
17 |
-1100 |
2 |
52 |
| 56490 |
VIRU |
8 |
30 |
157 |
44 |
-1100 |
2 |
48 |
| 56510 |
MAROVO LAGOON |
8 |
30 |
157 |
58 |
-1100 |
3 |
9 |
| 56520 |
MONGO PASSAGE |
8 |
21 |
157 |
52 |
-1100 |
2 |
56 |
| 56540 |
LOLOMO PASSAGE |
8 |
11 |
157 |
41 |
-1100 |
3 |
18 |
| 56670 |
HONIARA |
9 |
25 |
159 |
58 |
-1100 |
3 |
52 |
| 56690 |
NUGHU I. |
9 |
17 |
160 |
21 |
-1100 |
3 |
0 |
| 56710 |
MBUNGANA I. |
9 |
11 |
160 |
13 |
-1100 |
3 |
8 |
| 56748 |
BUENA VISTA |
8 |
54 |
160 |
1 |
-1100 |
4 |
8 |
| 56750 |
SANDFLY PASSAGE |
8 |
58 |
160 |
5 |
-1100 |
3 |
44 |
| 56780 |
THOUSAND SHIPS BAY |
8 |
26 |
159 |
42 |
-1100 |
3 |
39 |
| 56910 |
BINA HARBOUR |
8 |
55 |
160 |
46 |
-1100 |
3 |
35 |
| 57700 |
NORFOLK I. |
29 |
4 |
167 |
56 |
-1130 |
8 |
8 |
| 57715 |
ELIZABETH REEF |
29 |
55 |
159 |
4 |
-1000 |
8 |
24 |
| 57720 |
LORD HOWE I. |
31 |
31 |
159 |
4 |
-1030 |
8 |
48 |
| 57750 |
CATO I. |
23 |
15 |
155 |
32 |
-1000 |
8 |
32 |
| 57770 |
SAUMAREZ REEF |
21 |
55 |
153 |
33 |
-1000 |
8 |
30 |
| 57810 |
MARION REEF |
19 |
6 |
152 |
24 |
-1000 |
9 |
8 |
| 57820 |
MELLISH REEF |
17 |
25 |
155 |
52 |
-1000 |
8 |
51 |
| 57840 |
EAST DIAMOND I. |
17 |
26 |
151 |
4 |
-1000 |
9 |
5 |
| 57850 |
WILLIS I. |
16 |
13 |
150 |
1 |
-1000 |
9 |
15 |
| 57930 |
BRAMBLE CAY |
9 |
8 |
143 |
53 |
-1000 |
9 |
58 |
| 57932 |
UNNAMED CAY |
9 |
21 |
143 |
20 |
-1000 |
10 |
25 |
| 57935 |
STEPHENS I. |
9 |
30 |
143 |
33 |
-1000 |
10 |
23 |
| 57940 |
DARNLEY I. |
9 |
34 |
143 |
46 |
-1000 |
10 |
13 |
| 57945 |
EAST CAY |
9 |
23 |
144 |
13 |
-1000 |
9 |
42 |
| 57980 |
RENNEL I. |
9 |
45 |
143 |
16 |
-1000 |
9 |
39 |
| 57987 |
MAER I. |
9 |
54 |
144 |
2 |
-1000 |
9 |
44 |
| 57988 |
ASHMORE REEF (QLD) |
10 |
5 |
144 |
30 |
-1000 |
9 |
15 |
| 57990 |
AUREED I. |
9 |
57 |
143 |
17 |
-1000 |
10 |
45 |
| 58000 |
DUNGENESS REEF |
9 |
58 |
142 |
58 |
-1000 |
11 |
1 |
| 58010 |
ZAGAI I. |
9 |
52 |
142 |
54 |
-1000 |
11 |
45 |
| 58015 |
YAM I. |
9 |
54 |
142 |
46 |
-1000 |
0 |
-23 |
| 58020 |
SAIBAI I. |
9 |
23 |
142 |
37 |
-1000 |
0 |
33 |
| 58023 |
WARRIOR REEF |
9 |
35 |
143 |
9 |
-1000 |
10 |
31 |
| 58025 |
PHIPI REEF |
9 |
36 |
142 |
32 |
-1000 |
0 |
14 |
| 58030 |
GABBA I. |
9 |
46 |
142 |
37 |
-1000 |
0 |
0 |
| 58035 |
TALAB ISLAND |
9 |
58 |
142 |
13 |
-1000 |
1 |
30 |
| 58070 |
COCONUT I. |
10 |
3 |
143 |
4 |
-1000 |
11 |
5 |
| 58072 |
DUGONG I. |
10 |
31 |
143 |
6 |
-1000 |
10 |
58 |
| 58073 |
POLL I. |
10 |
15 |
142 |
49 |
-1000 |
11 |
31 |
| 58075 |
KIRKCALDIE REEF |
10 |
25 |
142 |
48 |
-1000 |
11 |
8 |
| 58080 |
SUARJI I. |
10 |
10 |
142 |
31 |
-1000 |
0 |
-6 |
| 58090 |
HAWKESBURY I. |
10 |
23 |
142 |
8 |
-1000 |
3 |
57 |
| 58099 |
ALERT PATCHES |
10 |
29 |
142 |
21 |
-1000 |
0 |
6 |
| 58100 |
TWIN I. |
10 |
28 |
142 |
26 |
-1000 |
0 |
-6 |
| 58110 |
EAST STRAIT I. |
10 |
30 |
142 |
27 |
-1000 |
0 |
0 |
| 58131 |
MOA I. |
10 |
14 |
142 |
13 |
-1000 |
3 |
11 |
| 58140 |
INCE POINT |
10 |
30 |
142 |
19 |
-1000 |
0 |
55 |
| 58170 |
THURSDAY I. |
10 |
35 |
142 |
13 |
-1000 |
1 |
43 |
| 58180 |
TURTLE HEAD |
10 |
31 |
142 |
13 |
-1000 |
2 |
56 |
| 58190 |
ROUND I. |
10 |
33 |
142 |
12 |
-1000 |
3 |
31 |
| 58200 |
GOODS I. |
10 |
34 |
142 |
10 |
-1000 |
4 |
3 |
| 58230 |
BOOBY I. |
10 |
36 |
141 |
55 |
-1000 |
3 |
58 |
| 58232 |
VARZIN SHOAL |
10 |
33 |
141 |
55 |
-1000 |
4 |
1 |
| 58240 |
PROUDFOOT SHOAL |
10 |
31 |
141 |
28 |
-1000 |
3 |
36 |
| 58241 |
WHITE ROCKS |
10 |
31 |
142 |
1 |
-1000 |
3 |
59 |
| 58242 |
CARPENTARIA |
10 |
44 |
141 |
18 |
-1000 |
3 |
15 |
| 58260 |
PAPOU POINT |
10 |
37 |
142 |
20 |
-1000 |
0 |
11 |
| 58280 |
BAMPFIELD HEAD |
10 |
42 |
142 |
6 |
-1000 |
3 |
60 |
| 58281 |
CRAB I. |
10 |
58 |
142 |
7 |
-1000 |
3 |
59 |
| 58283 |
RED WALLIS I. |
10 |
51 |
142 |
2 |
-1000 |
3 |
49 |
| 58300 |
TARILAG I. |
10 |
45 |
142 |
14 |
-1000 |
3 |
26 |
| 58330 |
HARRINGTON REEF |
10 |
49 |
142 |
43 |
-1000 |
11 |
6 |
| 58340 |
HERALD CAMP |
10 |
56 |
142 |
9 |
-1000 |
3 |
49 |
| 58360 |
RED I. |
10 |
51 |
142 |
22 |
-1000 |
2 |
52 |
| 58390 |
POSSESSION I. |
10 |
44 |
142 |
24 |
-1000 |
1 |
7 |
| 58430 |
ALPHA ROCK |
10 |
38 |
142 |
32 |
-1000 |
0 |
-22 |
| 58470 |
ALBANY I. |
10 |
43 |
142 |
35 |
-1000 |
11 |
38 |
| 58485 |
TRIANGLE REEF |
10 |
45 |
143 |
59 |
-1000 |
9 |
59 |
| 58490 |
TURTLE HEAD I. |
10 |
55 |
142 |
42 |
-1000 |
10 |
46 |
| 58539 |
MACLENNAN CAY |
11 |
19 |
143 |
48 |
-1000 |
9 |
48 |
| 58540 |
RAINE I. |
11 |
36 |
144 |
3 |
-1000 |
9 |
12 |
| 58561 |
MCSWEENY REEF |
11 |
1 |
143 |
14 |
-1000 |
10 |
29 |
| 58570 |
CAIRNCROSS I. |
11 |
15 |
142 |
55 |
-1000 |
9 |
35 |
| 58590 |
HANNIBAL I. |
11 |
36 |
142 |
56 |
-1000 |
10 |
9 |
| 58600 |
SHELBURNE BAY |
11 |
54 |
143 |
6 |
-1000 |
10 |
15 |
| 58610 |
CAPE GRENVILLE |
11 |
58 |
143 |
16 |
-1000 |
9 |
59 |
| 58615 |
HICKS I. |
11 |
59 |
143 |
17 |
-1000 |
9 |
43 |
| 58630 |
SIR CHARLES HARDY |
11 |
55 |
143 |
26 |
-1000 |
9 |
44 |
| 58650 |
PIPER I. |
12 |
15 |
143 |
14 |
-1000 |
9 |
35 |
| 58660 |
PORTLAND ROAD |
12 |
36 |
143 |
25 |
-1000 |
9 |
26 |
| 58670 |
RESTORATION I. |
12 |
38 |
143 |
27 |
-1000 |
9 |
32 |
| 58680 |
CHAPMAN I. |
12 |
53 |
143 |
36 |
-1000 |
9 |
25 |
| 58690 |
HAM REEF |
13 |
2 |
143 |
52 |
-1000 |
9 |
17 |
| 58700 |
JUBILEE REEF |
13 |
10 |
143 |
46 |
-1000 |
9 |
22 |
| 58710 |
NIGHT I. |
13 |
10 |
143 |
34 |
-1000 |
9 |
22 |
| 58720 |
UNNAMED REEF No. 3 |
13 |
20 |
143 |
58 |
-1000 |
9 |
21 |
| 58730 |
MORRIS I. |
13 |
29 |
143 |
43 |
-1000 |
9 |
23 |
| 58735 |
1st 3 MILE OPENING |
13 |
29 |
144 |
3 |
-1000 |
9 |
10 |
| 58740 |
CREECH REEF |
13 |
38 |
144 |
5 |
-1000 |
9 |
23 |
| 58750 |
FIFE I. |
13 |
39 |
143 |
43 |
-1000 |
9 |
24 |
| 58761 |
PELICAN I. |
13 |
55 |
143 |
50 |
-1000 |
9 |
26 |
| 58800 |
FLINDERS I. |
14 |
11 |
144 |
14 |
-1000 |
9 |
32 |
| 58820 |
PIPON I. |
14 |
7 |
144 |
30 |
-1000 |
9 |
18 |
| 58830 |
CAPE MELVILLE |
14 |
10 |
144 |
29 |
-1000 |
9 |
22 |
| 58840 |
MUNRO REEF |
14 |
18 |
144 |
43 |
-1000 |
9 |
21 |
| 58865 |
LEGGATT I. |
14 |
32 |
144 |
51 |
-1000 |
9 |
23 |
| 58870 |
NORMANBY R. |
14 |
26 |
144 |
9 |
-1000 |
9 |
27 |
| 58885 |
CARTER REEF |
14 |
34 |
145 |
36 |
-1000 |
9 |
21 |
| 58890 |
LIZARD I.(QLD) |
14 |
39 |
145 |
27 |
-1000 |
9 |
13 |
| 58894 |
E. PETHERBRIDGE I. |
14 |
44 |
145 |
6 |
-1000 |
9 |
27 |
| 58896 |
N. DIRECTION I. |
14 |
45 |
145 |
30 |
-1000 |
9 |
25 |
| 58900 |
CAPE FLATTERY |
14 |
57 |
145 |
19 |
-1000 |
9 |
13 |
| 58903 |
RIBBON REEF NO. 9 |
14 |
59 |
|