July 21, 2026 · Carmarthen, Wales
Carmarthen has 16h 1m of daylight today. Sunrise is at 05:24 and sunset is at 21:25. All times are calculated astronomically for Carmarthen's exact coordinates.
Carmarthen lies at 52°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Carmarthen, or see daylight hours for every day of the year.
The longest day in Carmarthen is around 16h 42m (around June 21). The shortest is around 7h 46m (around December 21). Days are currently getting shorter — losing about 3 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 8h 15m | 08:19 | 16:34 |
| February | 9h 54m | 07:35 | 17:29 |
| March | 11h 44m | 06:35 | 18:20 |
| April | 13h 48m | 06:24 | 20:12 |
| May | 15h 36m | 05:27 | 21:02 |
| June | 16h 40m | 04:59 | 21:38 |
| July | 16h 17m | 05:15 | 21:32 |
| August | 14h 45m | 06:01 | 20:45 |
| September | 12h 46m | 06:51 | 19:37 |
| October | 10h 48m | 07:40 | 18:28 |
| November | 8h 55m | 07:35 | 16:30 |
| December | 7h 49m | 08:18 | 16:07 |