Tide Prediction — Nagasaki Bay
30-day tidal curve with high/low extremes and moon phase.
Today's Tide Detail
Hourly tide levels for today with high/low water times highlighted.
High Tide
04:49
1.73 m
Low Tide
10:49
0.55 m
High Tide
16:49
1.67 m
Low Tide
23:49
0.51 m
Best Viewing Window
Recommended time slots for optimal sea viewing.
03:49–05:4915:49–17:49
Hourly Levels
| Hour | Height | Trend |
|---|---|---|
| 00:00 | 0.88 m | Rising |
| 01:00 | 0.88 m | Rising |
| 02:00 | 1.17 m | Rising |
| 03:00 | 1.44 m | Rising |
| 04:00 | 1.65 m | Rising |
| 05:00 | 1.73 m | Falling |
| 06:00 | 1.66 m | Falling |
| 07:00 | 1.47 m | Falling |
| 08:00 | 1.19 m | Falling |
| 09:00 | 0.91 m | Falling |
| 10:00 | 0.67 m | Falling |
| 11:00 | 0.55 m | Rising |
| 12:00 | 0.58 m | Rising |
| 13:00 | 0.75 m | Rising |
| 14:00 | 1.01 m | Rising |
| 15:00 | 1.30 m | Rising |
| 16:00 | 1.54 m | Rising |
| 17:00 | 1.67 m | Slack |
| 18:00 | 1.65 m | Falling |
| 19:00 | 1.49 m | Falling |
| 20:00 | 1.23 m | Falling |
| 21:00 | 0.93 m | Falling |
| 22:00 | 0.67 m | Falling |
| 23:00 | 0.51 m | Slack |
30-Day Tide Curve
Sinusoidal tide prediction. Gray bands = night, red dot = now, H/L = today's high/low water.
Waxing Gibbous88%
Sunrise 21:30 · Sunset 08:38Mixed Tide · Coefficient 77.6All Extremes (30 days)
High and low water across the full forecast window.
| Date | Time | Type | Height |
|---|---|---|---|
| Oct 24 | 04:49 | High | 1.73 m |
| Oct 24 | 10:49 | Low | 0.55 m |
| Oct 24 | 16:49 | High | 1.67 m |
| Oct 24 | 23:49 | Low | 0.51 m |
| Oct 25 | 05:49 | High | 1.82 m |
| Oct 25 | 11:49 | Low | 0.44 m |
| Oct 25 | 17:49 | High | 1.71 m |
| Oct 25 | 23:49 | Low | 0.47 m |
| Oct 26 | 05:49 | High | 1.88 m |
| Oct 26 | 12:49 | Low | 0.36 m |
| Oct 26 | 18:49 | High | 1.74 m |
| Oct 27 | 24:49 | Low | 0.45 m |
| Oct 27 | 06:49 | High | 1.95 m |
| Oct 27 | 13:49 | Low | 0.31 m |
| Oct 27 | 19:49 | High | 1.75 m |
| Oct 28 | 01:49 | Low | 0.47 m |
| Oct 28 | 07:49 | High | 1.97 m |
| Oct 28 | 14:49 | Low | 0.30 m |
| Oct 28 | 20:49 | High | 1.75 m |
| Oct 29 | 02:49 | Low | 0.51 m |
| Oct 29 | 08:49 | High | 1.96 m |
| Oct 29 | 14:49 | Low | 0.32 m |
| Oct 29 | 21:49 | High | 1.72 m |
| Oct 30 | 03:49 | Low | 0.57 m |
| Oct 30 | 09:49 | High | 1.92 m |
| Oct 30 | 15:49 | Low | 0.35 m |
| Oct 30 | 22:49 | High | 1.68 m |
| Oct 31 | 04:49 | Low | 0.62 m |
| Oct 31 | 10:49 | High | 1.86 m |
| Oct 31 | 16:49 | Low | 0.40 m |
| Oct 31 | 23:49 | High | 1.65 m |
| Nov 1 | 05:49 | Low | 0.65 m |
| Nov 1 | 11:49 | High | 1.80 m |
| Nov 1 | 17:49 | Low | 0.45 m |
| Nov 2 | 24:49 | High | 1.63 m |
| Nov 2 | 06:49 | Low | 0.66 m |
| Nov 2 | 12:49 | High | 1.74 m |
| Nov 2 | 18:49 | Low | 0.49 m |
| Nov 3 | 01:49 | High | 1.65 m |
| Nov 3 | 07:49 | Low | 0.65 m |
| Nov 3 | 13:49 | High | 1.70 m |
| Nov 3 | 19:49 | Low | 0.51 m |
| Nov 4 | 02:49 | High | 1.68 m |
| Nov 4 | 08:49 | Low | 0.61 m |
| Nov 4 | 14:49 | High | 1.67 m |
| Nov 4 | 20:49 | Low | 0.51 m |
| Nov 5 | 03:49 | High | 1.72 m |
| Nov 5 | 09:49 | Low | 0.56 m |
| Nov 5 | 15:49 | High | 1.66 m |
| Nov 5 | 21:49 | Low | 0.50 m |
| Nov 6 | 03:49 | High | 1.75 m |
| Nov 6 | 10:49 | Low | 0.50 m |
| Nov 6 | 16:49 | High | 1.65 m |
| Nov 6 | 22:49 | Low | 0.50 m |
| Nov 7 | 04:49 | High | 1.80 m |
| Nov 7 | 11:49 | Low | 0.46 m |
| Nov 7 | 17:49 | High | 1.65 m |
| Nov 7 | 23:49 | Low | 0.51 m |
| Nov 8 | 05:49 | High | 1.82 m |
| Nov 8 | 11:49 | Low | 0.43 m |
| Nov 8 | 17:49 | High | 1.63 m |
| Nov 8 | 23:49 | Low | 0.56 m |
| Nov 9 | 06:49 | High | 1.80 m |
| Nov 9 | 12:49 | Low | 0.40 m |
| Nov 9 | 18:49 | High | 1.64 m |
| Nov 10 | 24:49 | Low | 0.57 m |
| Nov 10 | 06:49 | High | 1.81 m |
| Nov 10 | 13:49 | Low | 0.41 m |
| Nov 10 | 19:49 | High | 1.62 m |
| Nov 11 | 01:49 | Low | 0.61 m |
| Nov 11 | 07:49 | High | 1.80 m |
| Nov 11 | 13:49 | Low | 0.46 m |
| Nov 11 | 20:49 | High | 1.57 m |
| Nov 12 | 01:49 | Low | 0.66 m |
| Nov 12 | 08:49 | High | 1.75 m |
| Nov 12 | 14:49 | Low | 0.50 m |
| Nov 12 | 20:49 | High | 1.55 m |
| Nov 13 | 02:49 | Low | 0.69 m |
| Nov 13 | 08:49 | High | 1.73 m |
| Nov 13 | 15:49 | Low | 0.57 m |
| Nov 13 | 21:49 | High | 1.51 m |
| Nov 14 | 03:49 | Low | 0.73 m |
| Nov 14 | 09:49 | High | 1.68 m |
| Nov 14 | 15:49 | Low | 0.63 m |
| Nov 14 | 22:49 | High | 1.47 m |
| Nov 15 | 04:49 | Low | 0.78 m |
| Nov 15 | 10:49 | High | 1.62 m |
| Nov 15 | 16:49 | Low | 0.67 m |
| Nov 15 | 22:49 | High | 1.45 m |
| Nov 16 | 04:49 | Low | 0.82 m |
| Nov 16 | 10:49 | High | 1.56 m |
| Nov 16 | 17:49 | Low | 0.68 m |
| Nov 16 | 23:49 | High | 1.45 m |
| Nov 17 | 05:49 | Low | 0.84 m |
| Nov 17 | 11:49 | High | 1.53 m |
| Nov 17 | 18:49 | Low | 0.69 m |
| Nov 18 | 24:49 | High | 1.46 m |
| Nov 18 | 06:49 | Low | 0.82 m |
| Nov 18 | 12:49 | High | 1.51 m |
| Nov 18 | 19:49 | Low | 0.67 m |
| Nov 19 | 01:49 | High | 1.50 m |
| Nov 19 | 07:49 | Low | 0.77 m |
| Nov 19 | 13:49 | High | 1.51 m |
| Nov 19 | 20:49 | Low | 0.65 m |
| Nov 20 | 02:49 | High | 1.57 m |
| Nov 20 | 08:49 | Low | 0.68 m |
| Nov 20 | 14:49 | High | 1.54 m |
| Nov 20 | 21:49 | Low | 0.62 m |
| Nov 21 | 03:49 | High | 1.66 m |
| Nov 21 | 09:49 | Low | 0.57 m |
| Nov 21 | 15:49 | High | 1.58 m |
| Nov 21 | 21:49 | Low | 0.56 m |
| Nov 22 | 04:49 | High | 1.74 m |
| Nov 22 | 10:49 | Low | 0.45 m |
| Nov 22 | 16:49 | High | 1.63 m |
Moon Phase
Waxing Gibbous
Tides are strongest near new and full moons (spring tides) and weakest near quarter moons (neap tides).
High & Low Tides Today
Times and heights of today's high and low water.
| Time | Type | Height |
|---|---|---|
| 04:49 | High | 1.73 m |
| 10:49 | Low | 0.55 m |
| 16:49 | High | 1.67 m |
| 23:49 | Low | 0.51 m |
Tide Calendar — October 2026
Daily tide type and range with high/low tide counts and moon phase.
October 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
Mixed 1.5m
↑2 ↓2
2
Mixed 1.4m
↑1 ↓2
3
Neap 1.4m
↑2 ↓2
4
Mixed 1.3m
↑2 ↓2
5
Mixed 1.3m
↑2 ↓2
6
Mixed 1.3m
↑2 ↓2
7
Mixed 1.3m
↑2 ↓2
8
Spring 1.4m
↑2 ↓2
9
Spring 1.4m
↑2 ↓1
10
Spring 1.4m
↑2 ↓2
11
Spring 1.4m
↑2 ↓2
12
Spring 1.4m
↑2 ↓2
13
Mixed 1.4m
↑2 ↓2
14
Mixed 1.3m
↑2 ↓2
15
Mixed 1.1m
↑2 ↓2
16
Mixed 1.0m
↑2 ↓2
17
Mixed 0.9m
↑1 ↓2
18
Neap 0.8m
↑2 ↓2
19
Neap 0.8m
↑2 ↓2
20
Mixed 0.8m
↑2 ↓2
21
Mixed 0.9m
↑2 ↓2
22
Mixed 1.0m
↑2 ↓2
23
Mixed 1.1m
↑2 ↓2
24
Spring 1.2m
↑2 ↓2
25
Spring 1.4m
↑2 ↓1
26
Spring 1.5m
↑2 ↓2
27
Spring 1.6m
↑2 ↓2
28
Spring 1.7m
↑2 ↓2
29
Mixed 1.6m
↑2 ↓2
30
Mixed 1.6m
↑2 ↓2
31
Mixed 1.5m
↑1 ↓2
Spring TideMixed TideNeap Tide
Reading the Calendar
- • Cell color shows the daily tide type: spring (blue), mixed (teal), neap (gray).
- • ↑N / ↓M shows the count of high and low tides that day.
- • Moon emoji indicates the lunar phase, which modulates tide range.
- • Spring tides (full/new moon) yield larger ranges; neap tides (quarter moons) yield smaller ranges.
Tide predictions are computed from global harmonic constituents (FES2022b) with UTide harmonic-analysis fallback based on UHSLC observations, times shown in local timezone.