When to look for Jupiter

Port Alberni · next 30 nights. Times when the planet is at least 20° above the horizon during astronomical darkness.

These are position calculations, not visibility guarantees. Planets can also be observed in twilight; this planner deliberately selects darker windows. Clouds, haze, steady air and local obstructions still matter. A telescope is needed for planetary detail.

Check the next week’s weather → · Milky Way planner · Weekend planner

Longest sampled dark-time window: 3.7h on 7 Nov.

8 nights are within one 20-minute sample of the longest window. These are timing opportunities, not a best-weather ranking. All 30 nights are listed below.

Next opportunity

10 Oct

1.3h above 20°
04:40–06:00
Highest sampled altitude 32° at 05:40

Upcoming window

11 Oct

1.3h above 20°
04:40–06:00
Highest sampled altitude 32° at 05:40

Upcoming window

12 Oct

1.3h above 20°
04:40–06:00
Highest sampled altitude 33° at 05:40

Upcoming window

13 Oct

1.7h above 20°
04:20–06:00
Highest sampled altitude 33° at 05:40

Upcoming window

14 Oct

1.7h above 20°
04:20–06:00
Highest sampled altitude 34° at 05:40

Longest sampled window

7 Nov

3.7h above 20°
03:00–06:40
Highest sampled altitude 49° at 06:20

All 30 nights · times in America/Vancouver

10 Oct: 04:40–06:00 · 1.3h
11 Oct: 04:40–06:00 · 1.3h
12 Oct: 04:40–06:00 · 1.3h
13 Oct: 04:20–06:00 · 1.7h
14 Oct: 04:20–06:00 · 1.7h
15 Oct: 04:20–06:00 · 1.7h
16 Oct: 04:20–06:00 · 1.7h
17 Oct: 04:20–06:00 · 1.7h
18 Oct: 04:20–06:20 · 2.0h
19 Oct: 04:20–06:20 · 2.0h
20 Oct: 04:00–06:20 · 2.3h
21 Oct: 04:00–06:20 · 2.3h
22 Oct: 04:00–06:20 · 2.3h
23 Oct: 04:00–06:20 · 2.3h
24 Oct: 04:00–06:20 · 2.3h
25 Oct: 04:00–06:20 · 2.3h
26 Oct: 03:40–06:20 · 2.7h
27 Oct: 03:40–06:20 · 2.7h
28 Oct: 03:40–06:20 · 2.7h
29 Oct: 03:40–06:20 · 2.7h
30 Oct: 03:40–06:20 · 2.7h
31 Oct: 03:40–06:20 · 2.7h
1 Nov: 03:20–06:40 · 3.3h
2 Nov: 03:20–06:40 · 3.3h
3 Nov: 03:20–06:40 · 3.3h
4 Nov: 03:20–06:40 · 3.3h
5 Nov: 03:20–06:40 · 3.3h
6 Nov: 03:20–06:40 · 3.3h
7 Nov: 03:00–06:40 · 3.7h
8 Nov: 03:00–06:40 · 3.7h

Computed with Astronomy Engine at roughly 20-minute intervals. No claim of opposition, weather probability or measured seeing is implied.