Mauna Kea stargazing in April 2027
Stargazing at the visitor station (2,800 m). The summit requires 4x4 and acclimatisation.
Thu 1 Apr to Fri 30 Apr 2027
Best night: Wed 7 April 2027
Dark from 19:54 to 04:57 · 9.2 h without the moon · Milky Way core: 4.3 h
| Night of | Moon | Dark hours | Moon-free | Milky Way core | Score |
|---|---|---|---|---|---|
| Thu 1 Apr | 20% | 9.3 | 7.7 | 2.3 h | 97 |
| Fri 2 Apr | 13% | 9.2 | 8.3 | 3.2 h | 99 |
| Sat 3 Apr | 7% | 9.2 | 8.8 | 3.7 h | 100 |
| Sun 4 Apr | 3% | 9.2 | 9.2 | 4.2 h | 100 |
| Mon 5 Apr | 1% | 9.2 | 9.2 | 4.2 h | 100 |
| Tue 6 Apr | 0% | 9.2 | 9.2 | 4.2 h | 100 |
| Wed 7 Apr | 2% | 9.2 | 9.2 | 4.3 h | 100 |
| Thu 8 Apr | 7% | 9.2 | 8.3 | 4.3 h | 99 |
| Fri 9 Apr | 13% | 9.2 | 7.2 | 4.5 h | 98 |
| Sat 10 Apr | 22% | 9.0 | 6.0 | 4.3 h | 94 |
| Sun 11 Apr | 32% | 9.0 | 5.0 | 4.5 h | 88 |
| Mon 12 Apr | 44% | 9.0 | 4.0 | 4.0 h | 79 |
| Tue 13 Apr | 56% | 9.0 | 3.2 | 3.2 h | 69 |
| Wed 14 Apr | 67% | 9.0 | 2.3 | 2.3 h | 58 |
| Thu 15 Apr | 78% | 9.0 | 1.7 | 1.7 h | 46 |
| Fri 16 Apr | 87% | 9.0 | 1.0 | 1.0 h | 35 |
| Sat 17 Apr | 93% | 8.8 | 0.2 | moonlit only | 22 |
| Sun 18 Apr | 98% | 8.8 | 0.0 | moonlit only | 17 |
| Mon 19 Apr | 100% | 8.8 | 0.0 | moonlit only | 15 |
| Tue 20 Apr | 99% | 8.8 | 0.0 | moonlit only | 15 |
| Wed 21 Apr | 97% | 8.8 | 0.0 | moonlit only | 17 |
| Thu 22 Apr | 93% | 8.8 | 1.0 | moonlit only | 30 |
| Fri 23 Apr | 87% | 8.8 | 1.8 | moonlit only | 41 |
| Sat 24 Apr | 80% | 8.8 | 2.7 | moonlit only | 52 |
| Sun 25 Apr | 72% | 8.7 | 3.5 | moonlit only | 63 |
| Mon 26 Apr | 63% | 8.7 | 4.3 | 0.8 h | 73 |
| Tue 27 Apr | 54% | 8.7 | 5.0 | 1.7 h | 80 |
| Wed 28 Apr | 45% | 8.7 | 5.5 | 2.2 h | 86 |
| Thu 29 Apr | 35% | 8.7 | 6.2 | 2.8 h | 91 |
| Fri 30 Apr | 26% | 8.7 | 6.7 | 3.5 h | 94 |
Rank your own travel dates Mauna Kea stargazing tours
Questions
What is the best night for stargazing at Mauna Kea in April 2027?
The best nights are Wed 7 Apr, Sun 4 Apr, Mon 5 Apr, Tue 6 Apr, Sat 3 Apr, when the sky is fully dark and the moon is down for most of the night.
Can you see the Milky Way core at Mauna Kea in April?
Yes, on 21 nights the galactic centre is above 10° during moon-free darkness, up to 4.5 hours a night.
Mauna Kea stargazing by month
Weather is not included. Times are local (Pacific/Honolulu).