July 21, 2026 · Carmarthen, Wales
Sunrise in Carmarthen today is at 05:24. Day length is 16h 1m. See below for sunset, solar noon, dawn and dusk — all times calculated astronomically for Carmarthen's coordinates and updated daily.
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.
Sunrise shifts earlier through spring and later through autumn — changing fastest near the equinoxes and barely at all near the summer and winter solstices. See the year chart to visualise how sunrise and sunset times shift month by month for Carmarthen.
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 | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 08:19 | 16:34 | 8h 15m |
| February | 07:35 | 17:29 | 9h 54m |
| March | 06:35 | 18:20 | 11h 44m |
| April | 06:24 | 20:12 | 13h 48m |
| May | 05:27 | 21:02 | 15h 36m |
| June | 04:59 | 21:38 | 16h 40m |
| July | 05:15 | 21:32 | 16h 17m |
| August | 06:01 | 20:45 | 14h 45m |
| September | 06:51 | 19:37 | 12h 46m |
| October | 07:40 | 18:28 | 10h 48m |
| November | 07:35 | 16:30 | 8h 55m |
| December | 08:18 | 16:07 | 7h 49m |