Boston sky calendar · December 2026
Full moon: Wed, Dec 23. New moon: Tue, Dec 8. Sunrise moves from 6:53 AM to 7:13 AM, sunset from 4:12 PM to 4:21 PM. 2 sky events this month (below). Times are local (EST).
| Date | Sunrise | Sunset | Moonrise | Moonset | Moon |
|---|---|---|---|---|---|
| Tue, Dec 1 | 6:53 AM | 4:12 PM | — | 12:19 PM | Last quarter · 45% |
| Wed, Dec 2 | 6:54 AM | 4:12 PM | 12:23 AM | 12:40 PM | Waning crescent · 35% |
| Thu, Dec 3 | 6:55 AM | 4:12 PM | 1:31 AM | 1:00 PM | Waning crescent · 25% |
| Fri, Dec 4 | 6:56 AM | 4:11 PM | 2:38 AM | 1:22 PM | Waning crescent · 17% |
| Sat, Dec 5 | 6:57 AM | 4:11 PM | 3:44 AM | 1:47 PM | Waning crescent · 10% |
| Sun, Dec 6 | 6:58 AM | 4:11 PM | 4:50 AM | 2:16 PM | Waning crescent · 5% |
| Mon, Dec 7 | 6:59 AM | 4:11 PM | 5:56 AM | 2:51 PM | Waning crescent · 2% |
| Tue, Dec 8 | 7:00 AM | 4:11 PM | 6:57 AM | 3:32 PM | New moon · 0% |
| Wed, Dec 9 | 7:01 AM | 4:11 PM | 7:53 AM | 4:22 PM | Waxing crescent · 1% |
| Thu, Dec 10 | 7:02 AM | 4:11 PM | 8:41 AM | 5:18 PM | Waxing crescent · 3% |
| Fri, Dec 11 | 7:03 AM | 4:11 PM | 9:22 AM | 6:19 PM | Waxing crescent · 6% |
| Sat, Dec 12 | 7:04 AM | 4:11 PM | 9:54 AM | 7:23 PM | Waxing crescent · 12% |
| Sun, Dec 13 | 7:04 AM | 4:11 PM | 10:22 AM | 8:26 PM | Waxing crescent · 18% |
| Mon, Dec 14 | 7:05 AM | 4:12 PM | 10:45 AM | 9:30 PM | Waxing crescent · 26% |
| Tue, Dec 15 | 7:06 AM | 4:12 PM | 11:06 AM | 10:33 PM | Waxing crescent · 35% |
| Wed, Dec 16 | 7:07 AM | 4:12 PM | 11:26 AM | 11:38 PM | Waxing crescent · 45% |
| Thu, Dec 17 | 7:07 AM | 4:13 PM | 11:46 AM | — | First quarter · 55% |
| Fri, Dec 18 | 7:08 AM | 4:13 PM | 12:07 PM | 12:44 AM | Waxing gibbous · 65% |
| Sat, Dec 19 | 7:09 AM | 4:13 PM | 12:32 PM | 1:54 AM | Waxing gibbous · 75% |
| Sun, Dec 20 | 7:09 AM | 4:14 PM | 1:02 PM | 3:09 AM | Waxing gibbous · 84% |
| Mon, Dec 21 | 7:10 AM | 4:14 PM | 1:41 PM | 4:28 AM | Waxing gibbous · 92% |
| Tue, Dec 22 | 7:10 AM | 4:15 PM | 2:33 PM | 5:46 AM | Waxing gibbous · 97% |
| Wed, Dec 23 | 7:11 AM | 4:15 PM | 3:38 PM | 7:00 AM | Full moon · 100% |
| Thu, Dec 24 | 7:11 AM | 4:16 PM | 4:56 PM | 8:01 AM | Waning gibbous · 99% |
| Fri, Dec 25 | 7:11 AM | 4:16 PM | 6:18 PM | 8:50 AM | Waning gibbous · 96% |
| Sat, Dec 26 | 7:12 AM | 4:17 PM | 7:40 PM | 9:27 AM | Waning gibbous · 90% |
| Sun, Dec 27 | 7:12 AM | 4:18 PM | 8:58 PM | 9:57 AM | Waning gibbous · 82% |
| Mon, Dec 28 | 7:12 AM | 4:19 PM | 10:11 PM | 10:21 AM | Waning gibbous · 72% |
| Tue, Dec 29 | 7:12 AM | 4:19 PM | 11:21 PM | 10:43 AM | Waning gibbous · 62% |
| Wed, Dec 30 | 7:13 AM | 4:20 PM | — | 11:05 AM | Last quarter · 51% |
| Thu, Dec 31 | 7:13 AM | 4:21 PM | 12:29 AM | 11:27 AM | Waning crescent · 41% |
Sky events this month
- Sun, Dec 13Geminids meteor shower peakUp to about 150 meteors an hour under a perfectly dark sky · the Moon stays out of the way
- Wed, Dec 23 8:28 PMFull moonSupermoon: a full moon close to Earth, slightly bigger and brighter
Month by month
Calculated with Astronomy Engine (MIT license).