July 20, 2026 · San Isidro, Costa Rica
San Isidro has 12h 36m of daylight today. Sunrise is at 05:24 and sunset is at 18:00. All times are calculated astronomically for San Isidro's exact coordinates.
San Isidro lies at 9°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
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 San Isidro, or see daylight hours for every day of the year.
The longest day in San Isidro is around 12h 40m (around June 21). The shortest is around 11h 35m (around December 21).
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 11h 38m | 05:56 | 17:33 |
| February | 11h 49m | 05:55 | 17:45 |
| March | 12h 3m | 05:43 | 17:47 |
| April | 12h 19m | 05:26 | 17:45 |
| May | 12h 33m | 05:16 | 17:48 |
| June | 12h 40m | 05:16 | 17:56 |
| July | 12h 37m | 05:23 | 18:00 |
| August | 12h 26m | 05:27 | 17:54 |
| September | 12h 11m | 05:26 | 17:37 |
| October | 11h 56m | 05:23 | 17:19 |
| November | 11h 42m | 05:29 | 17:11 |
| December | 11h 35m | 05:43 | 17:18 |