The sun, month by month
Sunrise and sunset in Toronto in December
On December 1 in Toronto the sun rises at 07:33 and sets at 16:42; on day 31 it rises at 07:51 and sets at 16:50. Over the month the day gets 9 minutes shorter.
In Toronto (43.6° latitude), December 2026 has 31 days whose sun rises at 07:33 and sets at 16:42 on the 1st, and at 07:51 and 16:50 on the 31th. Mid-month the day lasts 8 h 57 min and the sun reaches 23° above the horizon. Even so, the UV index never reaches 3 at any point in the month: at this latitude and time of year, the ozone layer absorbs UVB before enough of it reaches the ground. So in December there is no vitamin D synthesis in Toronto at any hour of the day, however long you stay out.
Where does the sun rise and set in Toronto in December?
Mid-December in Toronto: the sun rises in the southeast — a bearing of 122°, measured from true north — and sets in the southwest, at 238°. That is 32° south of due east at sunrise, and the same 32° south of due west at sunset. From the 1st to the last day of the month both points barely move.
Approximate bearings: they can be a couple of degrees out. They are measured from true north, not the north a phone compass points to.
Day by day
All times are local to Toronto. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 07:01 | 07:33 | 16:42 | 17:14 | 9 h 08 min |
| 2 | 07:02 | 07:34 | 16:41 | 17:14 | 9 h 07 min |
| 3 | 07:03 | 07:35 | 16:41 | 17:14 | 9 h 06 min |
| 4 | 07:04 | 07:36 | 16:41 | 17:13 | 9 h 05 min |
| 5 | 07:05 | 07:37 | 16:41 | 17:13 | 9 h 04 min |
| 6 | 07:05 | 07:38 | 16:41 | 17:13 | 9 h 03 min |
| 7 | 07:06 | 07:39 | 16:41 | 17:13 | 9 h 02 min |
| 8 | 07:07 | 07:40 | 16:41 | 17:13 | 9 h 01 min |
| 9 | 07:08 | 07:41 | 16:41 | 17:13 | 9 h 00 min |
| 10 | 07:09 | 07:41 | 16:41 | 17:13 | 8 h 59 min |
| 11 | 07:09 | 07:42 | 16:41 | 17:14 | 8 h 59 min |
| 12 | 07:10 | 07:43 | 16:41 | 17:14 | 8 h 58 min |
| 13 | 07:11 | 07:44 | 16:41 | 17:14 | 8 h 58 min |
| 14 | 07:12 | 07:44 | 16:41 | 17:14 | 8 h 57 min |
| 15 | 07:12 | 07:45 | 16:42 | 17:14 | 8 h 57 min |
| 16 | 07:13 | 07:46 | 16:42 | 17:15 | 8 h 56 min |
| 17 | 07:13 | 07:46 | 16:42 | 17:15 | 8 h 56 min |
| 18 | 07:14 | 07:47 | 16:43 | 17:15 | 8 h 56 min |
| 19 | 07:15 | 07:47 | 16:43 | 17:16 | 8 h 56 min |
| 20 | 07:15 | 07:48 | 16:43 | 17:16 | 8 h 56 min |
| 21 | 07:16 | 07:48 | 16:44 | 17:17 | 8 h 56 min |
| 22 | 07:16 | 07:49 | 16:44 | 17:17 | 8 h 56 min |
| 23 | 07:16 | 07:49 | 16:45 | 17:18 | 8 h 56 min |
| 24 | 07:17 | 07:50 | 16:45 | 17:18 | 8 h 56 min |
| 25 | 07:17 | 07:50 | 16:46 | 17:19 | 8 h 56 min |
| 26 | 07:17 | 07:50 | 16:47 | 17:20 | 8 h 56 min |
| 27 | 07:18 | 07:51 | 16:47 | 17:20 | 8 h 57 min |
| 28 | 07:18 | 07:51 | 16:48 | 17:21 | 8 h 57 min |
| 29 | 07:18 | 07:51 | 16:49 | 17:22 | 8 h 58 min |
| 30 | 07:18 | 07:51 | 16:50 | 17:22 | 8 h 58 min |
| 31 | 07:19 | 07:51 | 16:50 | 17:23 | 8 h 59 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in December?
In December the sun doesn't climb high enough in Toronto for vitamin D synthesis: the season to mind your diet or consider supplementation.
See the Toronto vitamin D guideCommon questions about the sun in Toronto in December
- Where does the sun set in Toronto in December?
- Mid-December in Toronto: the sun sets in the southwest, a bearing of 238° measured from true north, which is 32° south of due west. It rises in the southeast, at 122°. Over the month both points barely move.
- How much daylight does Toronto lose in December?
- Over December the day gets 9 minutes shorter in Toronto: on December 1 the sun rises at 07:33 and sets at 16:42, and on day 31 it rises at 07:51 and sets at 16:50.
- How many hours of daylight does Toronto get in December?
- In mid-December the day lasts 8 h 57 min in Toronto, from sunrise at 07:45 to sunset at 16:42. The table has the day length for each of the 31 days of the month.
- What time does it start to get light in Toronto in December?
- In mid-December the sky starts to get light at 07:12 in Toronto, when the sun is 6° below the horizon, and the sun itself does not rise until 07:45. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Toronto in December?
- It's not the same time as sunset. In mid-December in Toronto the sun sets at 16:42, but there is still light: civil twilight does not end until 17:14, when the sun reaches 6° below the horizon and usable outdoor light runs out. The “Dusk” column of the table gives that time day by day.
- What time of day can you make vitamin D in Toronto in December?
- At no time of day. Not even at midday on December 15 does the UV index reach 3 in Toronto, and below that minimum the skin makes no vitamin D, however long you stay out. In December it is the season to mind your diet or consider supplementation.