Saint-Hyacinthe · March 2027
Northern lights in Saint-Hyacinthe in March 2027
Answer
March against the rest of the year
March cloud at Saint-Hyacinthe averages 65% in NASA POWER's 2001 to 2020 record, close to its yearly mean of 65%. September is Saint-Hyacinthe's clearest month at 54%. By civil night times clear sky, March scores 3.8 hours at Saint-Hyacinthe, 4th of 12. Trois-Rivières, 85 km away, averages 62%, clearer by 3 points.
Civil night at Saint-Hyacinthe starts March at 11 h 45 min and reaches 10 h 8 min by March 31, 1.6 hours shorter. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 8.7 hours on the 15th.
March night by night
March opens toward a new moon on Mar 8, with full moon on Mar 22, in America/Toronto dates. Saint-Hyacinthe gets 187 hours of civil night with the moon below the horizon across the month. The best of them for moon-free darkness inside 10 PM to 2 AM: Mar 1 (4 h), Mar 2 (4 h), Mar 3 (4 h).
- 1
32% lit
9.6 h
- 2
23% lit
10.2 h
- 3
16% lit
10.7 h
- 4
9% lit
11.0 h
- 5
5% lit
11.4 h
- 6
1% lit
11.5 h
- 7
0% lit
11.4 h
- 8
1% lit
11.3 h
- 9
4% lit
10.2 h
- 10
8% lit
8.9 h
- 11
15% lit
7.7 h
- 12
24% lit
6.4 h
- 13
34% lit
5.1 h
- 14
44% lit
3.9 h
- 15
56% lit
2.9 h
- 16
67% lit
2.1 h
- 17
77% lit
1.4 h
- 18
86% lit
0.9 h
- 19
93% lit
0.5 h
- 20
98% lit
0.1 h
- 21
100% lit
0.0 h
- 22
99% lit
0.2 h
- 23
96% lit
1.4 h
- 24
91% lit
2.7 h
- 25
84% lit
3.9 h
- 26
76% lit
5.0 h
- 27
68% lit
6.0 h
- 28
58% lit
6.8 h
- 29
49% lit
7.5 h
- 30
40% lit
8.0 h
- 31
31% lit
8.5 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.
Activity in past Marchs
Saint-Hyacinthe needs Kp 6 for the average oval edge to sit overhead. 30 of the 930 March days from 1996 to 2025 (3%) reached it in the GFZ Potsdam record, 6th of 12 months; storm days with Kp 5 or more made up 12%. Saint-Hyacinthe sits at 54.8 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.
March across Canada
No month-page town in Canada has more civil night on March 15 than Saint-Hyacinthe; the national median is 10.9 hours. Coming from February (12.5 hours at Saint-Hyacinthe), March loses darkness, and April brings shorter nights (9.3 hours on the 15th). The March equinox falls on March 20, 16:25 Saint-Hyacinthe time, inside the weeks SWPC links with larger storms.
| Town | Civil night | Cloud |
|---|---|---|
| Saint-Hyacinthe | 11.0 h | 65% |
| Québec | 11.0 h | 63% |
| Greater Sudbury | 11.0 h | 60% |
| Saguenay | 11.0 h | 66% |
| Trois-Rivières | 11.0 h | 62% |
| St. John's | 11.0 h | 80% |
| Thunder Bay | 11.0 h | 67% |
| Sydney | 11.0 h | 77% |
| Calgary | 10.9 h | 72% |
| Edmonton | 10.9 h | 72% |
| Winnipeg | 10.9 h | 61% |
| Saskatoon | 10.9 h | 68% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Mon Mar 1 | 11 h 45 min | 9 h 28 min | 9 h 33 min | 4 h | 32% |
| Tue Mar 2 | 11 h 42 min | 9 h 24 min | 10 h 10 min | 4 h | 23% |
| Wed Mar 3 | 11 h 39 min | 9 h 21 min | 10 h 39 min | 4 h | 16% |
| Thu Mar 4 | 11 h 36 min | 9 h 18 min | 11 h 2 min | 4 h | 9% |
| Fri Mar 5 | 11 h 33 min | 9 h 15 min | 11 h 22 min | 4 h | 5% |
| Sat Mar 6 | 11 h 30 min | 9 h 11 min | 11 h 30 min | 4 h | 1% |
| Sun Mar 7 | 11 h 26 min | 9 h 8 min | 11 h 26 min | 4 h | 0% |
| Mon Mar 8 | 11 h 23 min | 9 h 5 min | 11 h 21 min | 4 h | 1% |
| Tue Mar 9 | 11 h 20 min | 9 h 1 min | 10 h 10 min | 4 h | 4% |
| Wed Mar 10 | 11 h 17 min | 8 h 58 min | 8 h 57 min | 4 h | 8% |
| Thu Mar 11 | 11 h 14 min | 8 h 55 min | 7 h 41 min | 4 h | 15% |
| Fri Mar 12 | 11 h 10 min | 8 h 51 min | 6 h 24 min | 2 h 47 min | 24% |
| Sat Mar 13 | 11 h 7 min | 8 h 48 min | 5 h 7 min | 32 min | 34% |
| Sun Mar 14 | 11 h 4 min | 8 h 44 min | 3 h 55 min | 0 min | 44% |
| Mon Mar 15 | 11 h 1 min | 8 h 41 min | 2 h 54 min | 0 min | 56% |
| Tue Mar 16 | 10 h 57 min | 8 h 37 min | 2 h 4 min | 0 min | 67% |
| Wed Mar 17 | 10 h 54 min | 8 h 34 min | 1 h 26 min | 0 min | 77% |
| Thu Mar 18 | 10 h 51 min | 8 h 30 min | 55 min | 0 min | 86% |
| Fri Mar 19 | 10 h 48 min | 8 h 27 min | 29 min | 0 min | 93% |
| Sat Mar 20 | 10 h 44 min | 8 h 23 min | 6 min | 0 min | 98% |
| Sun Mar 21 | 10 h 41 min | 8 h 19 min | 0 min | 0 min | 100% |
| Mon Mar 22 | 10 h 38 min | 8 h 16 min | 12 min | 0 min | 99% |
| Tue Mar 23 | 10 h 34 min | 8 h 12 min | 1 h 27 min | 0 min | 96% |
| Wed Mar 24 | 10 h 31 min | 8 h 8 min | 2 h 40 min | 22 min | 91% |
| Thu Mar 25 | 10 h 28 min | 8 h 4 min | 3 h 52 min | 1 h 35 min | 84% |
| Fri Mar 26 | 10 h 25 min | 8 h 1 min | 4 h 59 min | 2 h 44 min | 76% |
| Sat Mar 27 | 10 h 21 min | 7 h 57 min | 5 h 59 min | 3 h 45 min | 68% |
| Sun Mar 28 | 10 h 18 min | 7 h 53 min | 6 h 50 min | 4 h | 58% |
| Mon Mar 29 | 10 h 15 min | 7 h 49 min | 7 h 30 min | 4 h | 49% |
| Tue Mar 30 | 10 h 11 min | 7 h 45 min | 8 h 2 min | 4 h | 40% |
| Wed Mar 31 | 10 h 8 min | 7 h 42 min | 8 h 28 min | 4 h | 31% |
Questions
- Can you see the northern lights in Saint-Hyacinthe in March?
- On dark, clear nights with enough activity. 31 of 31 nights at Saint-Hyacinthe have civil darkness, and 3% of past March days reached Kp 6.
- How dark is Saint-Hyacinthe in March?
- Saint-Hyacinthe averages 11.0 hours of civil night a night in March 2027, from 11 h 45 min on the 1st to 10 h 8 min on the last night.
- How cloudy is Saint-Hyacinthe in March?
- NASA POWER's 2001 to 2020 climatology gives Saint-Hyacinthe's 1 degree cell 65% mean cloud in March, against 65% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in March 2027 for aurora in Saint-Hyacinthe?
- By darkness and moon alone, Mar 1, with 4 h of moon-free darkness inside 10 PM to 2 AM at Saint-Hyacinthe. Activity on that date will only be known hours ahead.
- Is March or April better in Saint-Hyacinthe?
- By civil night times the clear share, March scores 3.8 hours at Saint-Hyacinthe and April 3.1. March comes out ahead.
Sources and verification
- SunCalchttps://github.com/mourner/suncalc
- NASA POWER climatologyhttps://power.larc.nasa.gov/docs/services/api/temporal/climatology/
- GFZ Potsdam Kp indexhttps://kp.gfz.de/en/data
- NOAA SWPC, Tips on viewing the aurorahttps://www.spaceweather.gov/content/tips-viewing-aurora
Quoted figures last checked against their sources on 2026-09-30; next review 2026-12-31. Computed figures come from SunCalc and the IGRF-14 dipole as described in the methodology. Every quote is listed in the sources ledger.