Rialto, CA sky calendar · December 2026
Full moon: Wed, Dec 23. New moon: Tue, Dec 8. Sunrise moves from 6:37 AM to 6:55 AM, sunset from 4:39 PM to 4:50 PM. 2 sky events this month (below). Times are local (PST).
| Date | Sunrise | Sunset | Moonrise | Moonset | Moon |
|---|---|---|---|---|---|
| Tue, Dec 1 | 6:37 AM | 4:39 PM | — | 12:24 PM | Waning crescent · 44% |
| Wed, Dec 2 | 6:38 AM | 4:39 PM | 12:38 AM | 12:50 PM | Waning crescent · 34% |
| Thu, Dec 3 | 6:38 AM | 4:39 PM | 1:39 AM | 1:17 PM | Waning crescent · 24% |
| Fri, Dec 4 | 6:39 AM | 4:39 PM | 2:39 AM | 1:45 PM | Waning crescent · 16% |
| Sat, Dec 5 | 6:40 AM | 4:39 PM | 3:40 AM | 2:16 PM | Waning crescent · 10% |
| Sun, Dec 6 | 6:41 AM | 4:39 PM | 4:41 AM | 2:50 PM | Waning crescent · 5% |
| Mon, Dec 7 | 6:42 AM | 4:39 PM | 5:41 AM | 3:30 PM | Waning crescent · 2% |
| Tue, Dec 8 | 6:42 AM | 4:40 PM | 6:39 AM | 4:15 PM | New moon · 0% |
| Wed, Dec 9 | 6:43 AM | 4:40 PM | 7:33 AM | 5:06 PM | Waxing crescent · 1% |
| Thu, Dec 10 | 6:44 AM | 4:40 PM | 8:22 AM | 6:02 PM | Waxing crescent · 3% |
| Fri, Dec 11 | 6:45 AM | 4:40 PM | 9:04 AM | 6:59 PM | Waxing crescent · 7% |
| Sat, Dec 12 | 6:45 AM | 4:40 PM | 9:40 AM | 7:58 PM | Waxing crescent · 12% |
| Sun, Dec 13 | 6:46 AM | 4:41 PM | 10:12 AM | 8:56 PM | Waxing crescent · 19% |
| Mon, Dec 14 | 6:47 AM | 4:41 PM | 10:40 AM | 9:54 PM | Waxing crescent · 27% |
| Tue, Dec 15 | 6:47 AM | 4:41 PM | 11:07 AM | 10:52 PM | Waxing crescent · 36% |
| Wed, Dec 16 | 6:48 AM | 4:41 PM | 11:32 AM | 11:50 PM | First quarter · 46% |
| Thu, Dec 17 | 6:49 AM | 4:42 PM | 11:58 AM | — | Waxing gibbous · 56% |
| Fri, Dec 18 | 6:49 AM | 4:42 PM | 12:25 PM | 12:51 AM | Waxing gibbous · 66% |
| Sat, Dec 19 | 6:50 AM | 4:43 PM | 12:57 PM | 1:55 AM | Waxing gibbous · 76% |
| Sun, Dec 20 | 6:50 AM | 4:43 PM | 1:34 PM | 3:04 AM | Waxing gibbous · 85% |
| Mon, Dec 21 | 6:51 AM | 4:44 PM | 2:20 PM | 4:17 AM | Waxing gibbous · 93% |
| Tue, Dec 22 | 6:51 AM | 4:44 PM | 3:17 PM | 5:31 AM | Waxing gibbous · 98% |
| Wed, Dec 23 | 6:52 AM | 4:45 PM | 4:25 PM | 6:42 AM | Full moon · 100% |
| Thu, Dec 24 | 6:52 AM | 4:45 PM | 5:40 PM | 7:44 AM | Waning gibbous · 99% |
| Fri, Dec 25 | 6:53 AM | 4:46 PM | 6:57 PM | 8:36 AM | Waning gibbous · 95% |
| Sat, Dec 26 | 6:53 AM | 4:46 PM | 8:11 PM | 9:18 AM | Waning gibbous · 89% |
| Sun, Dec 27 | 6:53 AM | 4:47 PM | 9:21 PM | 9:54 AM | Waning gibbous · 80% |
| Mon, Dec 28 | 6:54 AM | 4:48 PM | 10:28 PM | 10:24 AM | Waning gibbous · 71% |
| Tue, Dec 29 | 6:54 AM | 4:48 PM | 11:31 PM | 10:53 AM | Waning gibbous · 60% |
| Wed, Dec 30 | 6:54 AM | 4:49 PM | — | 11:20 AM | Last quarter · 50% |
| Thu, Dec 31 | 6:55 AM | 4:50 PM | 12:33 AM | 11:48 AM | Waning crescent · 39% |
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 5:28 PMFull moonSupermoon: a full moon close to Earth, slightly bigger and brighter
Month by month
Calculated with Astronomy Engine (MIT license).