British Columbia, Canada
Northern lights in Terrace
Answer
Tonight
Darkness window open
Civil darkness has begun.
Observed 11:49 UTC, forecast 13:20 UTC, 91 min lead
Clock times in America/Vancouver
Storm level needed
Terrace sits at 54.52N 128.60W in British Columbia, Canada. The IGRF-14 centered dipole puts Terrace at 58.9 degrees geomagnetic latitude, 4.3 degrees closer to the magnetic pole than its map latitude suggests. Terrace sits at 58.9 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 4, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less.
"aurora is commonly visible at high latitudes (northern Michigan and Maine)"
The nearest other Glow towns are Prince George (386 km), Fort St. John (526 km), Juneau (552 km). Prince George sits 0.3 degrees higher on the dipole and needs the same Kp.
Approximate: SWPC calls its Kp to latitude rule an average, and a centered dipole can differ by a degree from fuller field models. How the storm level is matched
The year in darkness
Every night of 2026 at Terrace has some civil darkness; the shortest month sample still has 4.7 hours. Every evening of the year at Terrace clears Glow's dark-season bar of 4 hours of civil night between 18:00 and 06:00. Terrace's longest night of the year, Dec 18, has 15 h 7 min of civil night.
Solar midnight at Terrace, when the sun is lowest, falls at 01:30 on local clocks on December 15 and 01:35 on June 15. That is 1 h 30 min after midnight in December and 1 h 35 min after midnight in June, the gap set by daylight saving and the equation of time. So at Terrace the darkest hour sits late in SWPC's 10 PM to 2 AM window.
Month by month
| Month | Night | Civil | Cloud | Clear dark | |
|---|---|---|---|---|---|
| Jan | 14.6 h | 11.6 h | 81% | 2.8 h | |
| Feb | 12.8 h | 10.0 h | 74% | 3.3 hbest | |
| Mar | 10.8 h | 8.0 h | 79% | 2.3 h | |
| Apr | 8.4 h | 4.8 h | 79% | 1.8 h | |
| May | 6.2 h | 0.0 h | 78% | 1.4 h | |
| Jun | 4.7 h | 0.0 h | 82% | 0.8 h | |
| Jul | 5.5 h | 0.0 h | 78% | 1.2 h | |
| Aug | 7.6 h | 3.4 h | 74% | 2.0 h | |
| Sep | 10.0 h | 7.0 h | 78% | 2.2 h | |
| Oct | 12.2 h | 9.4 h | 82% | 2.2 h | |
| Nov | 14.1 h | 11.2 h | 83% | 2.4 h | |
| Dec | 15.1 h | 12.1 h | 80% | 3.0 h |
By the 15th-of-the-month sample, December is the darkest month at Terrace with 15.1 hours of civil night and June the lightest at 4.7. Across the year Terrace gets 3,705 hours of civil night. Astronomical night at Terrace, the sun 18 degrees or more below the horizon, lasts 12.1 hours on December 15.
NASA POWER's 2001 to 2020 all-hours climatology puts mean cloud amount for the 1 degree cell around Terrace at 79% across the year, from 74% in February to 83% in November. In the months with at least 4 hours of civil night Terrace averages 79%, against a median of 67% for Glow towns in Canada.
Multiplying civil night by the clear share of the sky gives February the best score, 3.3 hours, ahead of December at 3.0. Terrace's equinox months score 2.3 in March and 2.2 in September, the weeks SWPC links with larger storms.
Kp history
From 1996 to 2025, the GFZ Potsdam record shows a 3-hour Kp of 4 or more, the level that puts the average oval edge over Terrace, on 24% of days. At Terrace's level the share runs from 19% in December to 31% in September, while storm days with Kp 5 or more made up 10%.
Share of UTC days in each calendar month whose highest 3-hour Kp reached Kp 4. Kp history by year
Moon, next 30 nights
Over the 30 nights from Oct 1, the new moon falls on Oct 10 and the full moon on Oct 25, in America/Vancouver dates. 15 of the 30 nights at Terrace have at least 2 moon-free dark hours inside 10 PM to 2 AM, and Oct 5 has the most at 4 h. Tonight Terrace has 11 h 11 min of civil night, 1 h 14 min of it with the moon down.
- 1
64% lit
1.2 h
- 2
53% lit
2.4 h
- 3
42% lit
3.8 h
- 4
31% lit
5.4 h
- 5
21% lit
7.0 h
- 6
13% lit
8.5 h
- 7
6% lit
9.9 h
- 8
2% lit
11.4 h
- 9
0% lit
11.8 h
- 10
1% lit
11.8 h
- 11
3% lit
11.9 h
- 12
7% lit
12.0 h
- 13
13% lit
12.0 h
- 14
20% lit
11.8 h
- 15
28% lit
11.1 h
- 16
37% lit
10.2 h
- 17
46% lit
9.0 h
- 18
56% lit
7.8 h
- 19
65% lit
6.5 h
- 20
74% lit
5.2 h
- 21
83% lit
3.9 h
- 22
90% lit
2.5 h
- 23
95% lit
1.2 h
- 24
99% lit
0.0 h
- 25
100% lit
0.0 h
- 26
98% lit
0.0 h
- 27
94% lit
0.0 h
- 28
87% lit
0.2 h
- 29
78% lit
1.2 h
- 30
68% lit
2.6 h
Each cell is the night that starts on that date. Hours are civil-dark time with the moon below the horizon; the green rule scales with them. Green outline: new moon. Bone outline: full moon.
Within Canada
Among the 19 Glow towns in British Columbia, Terrace ranks 3rd by dipole latitude against a regional median of 55.2 degrees; Fort St. John sits highest at 61.7. Among the 130 Glow towns in Canada, Terrace ranks 18th by dipole latitude against a national median of 55.3 degrees; Yellowknife sits highest at 68.5. On December 15 Terrace gets 15.1 hours of civil night, 6th longest of 130 in Canada, where the median is 14.2.
Questions
- Can you see the northern lights in Terrace?
- Terrace sits at 58.9 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 4, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less. Clear, dark sky over Terrace still decides it.
- When is it dark enough in Terrace?
- Every night at Terrace has civil darkness. Tonight has 11 h 11 min, and December 15 has 15.1 hours.
- What is the best month for aurora in Terrace?
- February, by civil night at Terrace times the clear share of the sky from NASA POWER's 2001 to 2020 average.
- How cloudy is Terrace in the dark months?
- About 79% mean cloud amount over Terrace in the months with at least 4 hours of civil night, from NASA POWER's 2001 to 2020 all-hours climatology.
- How often is activity high enough for Terrace?
- A 3-hour Kp of 4 or more, the level that puts the average oval edge overhead, occurred on 24% of days from 1996 to 2025 in the GFZ Potsdam record.
Nearby and related
Nearest Glow towns
Terrace by month
Region and comparisons