British Columbia, Canada
Northern lights in Langley
Answer
Tonight
Darkness window open
Civil darkness has begun.
Observed 11:55 UTC, forecast 13:26 UTC, 91 min lead
Clock times in America/Vancouver
Storm level needed
Langley sits at 49.10N 122.66W in British Columbia, Canada. The IGRF-14 centered dipole puts Langley at 54.5 degrees geomagnetic latitude, 5.4 degrees closer to the magnetic pole than its map latitude suggests. Langley sits at 54.5 degrees geomagnetic. The lowest NOAA storm level whose typical viewing latitude reaches it is G3 (Kp = 7). By SWPC's rule the average oval edge is overhead only at Kp 6.
"aurora has been seen as low as Illinois and Oregon (typically 50° geomagnetic lat.)"
The nearest other Glow towns are Surrey (12 km), Coquitlam (22 km), Delta (29 km). Surrey sits 0.0 degrees lower 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 Langley has some civil darkness; the shortest month sample still has 6.2 hours. Every evening of the year at Langley clears Glow's dark-season bar of 4 hours of civil night between 18:00 and 06:00. Langley's longest night of the year, Dec 17, has 14 h 26 min of civil night.
Solar midnight at Langley, when the sun is lowest, falls at 01:06 on local clocks on December 15 and 01:11 on June 15. That is 1 h 6 min after midnight in December and 1 h 11 min after midnight in June, the gap set by daylight saving and the equation of time. So at Langley the darkest hour sits late in SWPC's 10 PM to 2 AM window.
Month by month
| Month | Night | Civil | Cloud | Clear dark | |
|---|---|---|---|---|---|
| Jan | 14.0 h | 11.4 h | 81% | 2.7 h | |
| Feb | 12.6 h | 10.1 h | 75% | 3.1 h | |
| Mar | 10.9 h | 8.4 h | 81% | 2.1 h | |
| Apr | 9.0 h | 6.1 h | 78% | 2.0 h | |
| May | 7.3 h | 3.2 h | 71% | 2.1 h | |
| Jun | 6.2 h | 0.0 h | 71% | 1.8 h | |
| Jul | 6.7 h | 1.9 h | 50% | 3.4 h | |
| Aug | 8.4 h | 5.2 h | 50% | 4.2 h | |
| Sep | 10.3 h | 7.7 h | 58% | 4.3 hbest | |
| Oct | 12.1 h | 9.6 h | 73% | 3.3 h | |
| Nov | 13.6 h | 11.1 h | 81% | 2.6 h | |
| Dec | 14.4 h | 11.8 h | 81% | 2.7 h |
By the 15th-of-the-month sample, December is the darkest month at Langley with 14.4 hours of civil night and June the lightest at 6.2. Across the year Langley gets 3,812 hours of civil night. Astronomical night at Langley, the sun 18 degrees or more below the horizon, lasts 11.8 hours on December 15.
NASA POWER's 2001 to 2020 all-hours climatology puts mean cloud amount for the 1 degree cell around Langley at 71% across the year, from 50% in July to 81% in January. In the months with at least 4 hours of civil night Langley averages 71%, against a median of 67% for Glow towns in Canada.
Multiplying civil night by the clear share of the sky gives September the best score, 4.3 hours, ahead of August at 4.2. Langley's equinox months score 2.1 in March and 4.3 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 6 or more, the level that puts the average oval edge over Langley, on 3% of days. At Langley's level the share runs from 1% in December to 5% in October, 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 6. 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 Langley have at least 2 moon-free dark hours inside 10 PM to 2 AM, and Oct 5 has the most at 4 h. Tonight Langley has 11 h 14 min of civil night, 1 h 55 min of it with the moon down.
- 1
64% lit
1.9 h
- 2
53% lit
3.1 h
- 3
42% lit
4.4 h
- 4
31% lit
5.8 h
- 5
21% lit
7.2 h
- 6
13% lit
8.6 h
- 7
6% lit
9.9 h
- 8
2% lit
11.3 h
- 9
0% lit
11.7 h
- 10
1% lit
11.8 h
- 11
3% lit
11.8 h
- 12
7% lit
11.9 h
- 13
13% lit
11.7 h
- 14
20% lit
11.1 h
- 15
28% lit
10.3 h
- 16
37% lit
9.4 h
- 17
46% lit
8.4 h
- 18
56% lit
7.2 h
- 19
65% lit
6.1 h
- 20
74% lit
4.9 h
- 21
83% lit
3.7 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
0.7 h
- 29
78% lit
1.8 h
- 30
68% lit
3.0 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 20 Glow towns in British Columbia, Langley ranks 15th by dipole latitude against a regional median of 54.9 degrees; Fort St. John sits highest at 61.7. Among the 131 Glow towns in Canada, Langley ranks 97th by dipole latitude against a national median of 55.3 degrees; Yellowknife sits highest at 68.5. On December 15 Langley gets 14.4 hours of civil night, 42nd longest of 131 in Canada, where the median is 14.2.
Questions
- Can you see the northern lights in Langley?
- Langley sits at 54.5 degrees geomagnetic. The lowest NOAA storm level whose typical viewing latitude reaches it is G3 (Kp = 7). By SWPC's rule the average oval edge is overhead only at Kp 6. Clear, dark sky over Langley still decides it.
- When is it dark enough in Langley?
- Every night at Langley has civil darkness. Tonight has 11 h 14 min, and December 15 has 14.4 hours.
- What is the best month for aurora in Langley?
- September, by civil night at Langley times the clear share of the sky from NASA POWER's 2001 to 2020 average.
- How cloudy is Langley in the dark months?
- About 71% mean cloud amount over Langley 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 Langley?
- A 3-hour Kp of 6 or more, the level that puts the average oval edge overhead, occurred on 3% of days from 1996 to 2025 in the GFZ Potsdam record.
- Why does this page point to Surrey?
- Langley sits within 15 km of Surrey with the same rounded dipole latitude, Kp and dark season, so Glow treats Surrey as the main page for both.
Nearby and related
Nearest Glow towns
Langley by month
Region and comparisons