Moon phase tonight in Boulder
United States
Moonrise & moonset in Boulder — next 7 nights
| Night | Phase | Moonrise | Moonset |
|---|---|---|---|
| Tonight | 🌓 31% | — | 22:40 |
| Wed 19 Aug | 🌓 41% | 13:55 | 23:13 |
| Thu 20 Aug | 🌓 50% | 14:57 | 23:52 |
| Fri 21 Aug | 🌓 60% | 15:54 | 00:39 |
| Sat 22 Aug | 🌓 69% | 16:46 | 01:33 |
| Sun 23 Aug | 🌔 77% | 17:31 | 02:32 |
| Mon 24 Aug | 🌔 85% | 18:08 | 03:36 |
Times local to Boulder (America/Denver). “—” means the Moon doesn't rise or set during that calendar night.
A new Moon is the best time for stargazing — with no moonlight, faint stars, the Milky Way and meteor showers all show far better. A full Moon is beautiful but floods the sky with light — see the full moon calendar for the year's dates and names. For the darkest upcoming nights in Boulder, see the two-week planner on the stargazing page.
Moon FAQ for Boulder
What is the Moon phase tonight in Boulder?
Tonight the Moon is a First Quarter (31% illuminated) as seen from Boulder.
What time does the Moon rise in Boulder tonight?
The Moon rises around — and sets around 22:40 local time. Moonrise shifts roughly 30–60 minutes later each night — the 7-night table on this page has the exact times.
When is the next full Moon?
The next full Moon — the Sturgeon Moon — is on Friday 28 August; the next new Moon is on Friday 11 September.
Is tonight good for stargazing in Boulder?
Moon-wise, yes — at 31% illumination the sky stays fairly dark. Check the full verdict (clouds, darkness hours, planets) on the Boulder stargazing page.
Times local to Boulder (America/Denver), computed from established astronomical models.