Today in San Isidro, Costa Rica, the sun rises at 5:20 AM and sets at 5:59 PM, giving the city exactly 12h 39m of daylight. That is 0 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 170 days until the Winter Solstice on December 21, San Isidro is currently in its Summer season.
Golden Hour & Twilight Windows in San Isidro
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in San Isidro runs from N/A to 5:50 AM. The evening golden hour begins at 5:29 PM and lasts until 5:59 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Near the equator, San Isidro's daylight stays remarkably stable year-round, deviating very little from the annual average.
Solar Noon & UV Index
Solar noon in San Isidro falls exactly at 11:40 AM, which is the moment the sun reaches its peak altitude of 8.32 above the horizon. At this specific time, the solar angle produces a relatively low UV exposure day for San Isidro, typical of its Summer season.
Why Does Sunrise Shift in San Isidro?
At San Isidro's latitude of 9.3733°, the sun currently rises at an azimuth of 248.02° (WSW). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for San Isidro are calculated using advanced solar algorithms (SunCalc) based on coordinates 9.3733, -83.7047. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in San Isidro (Past Years)
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Here is a comparison of today's sunrise and sunset times in San Isidro versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:20 AM | 5:59 PM | 12h 39m |
| 2025 | 5:20 AM | 6:00 PM | 12h 39m |
| 2021 | 5:20 AM | 6:00 PM | 12h 39m |
Frequently Asked Questions
What time does the sun rise in San Isidro today?
In San Isidro, the sun rises at exactly 5:20 AM and sets at 5:59 PM today. This gives the city a total of 12h 39m of daylight.
When is golden hour in San Isidro today?
Today, morning golden hour in San Isidro runs from N/A to 5:50 AM. Evening golden hour begins at 5:29 PM and lasts until 5:57 PM.
Why does sunrise in San Isidro shift every day?
At San Isidro's latitude, the sun currently rises at an azimuth of 248.02° (WSW). Because of Earth's tilt, the city is approaching the solar plateau near the Winter Solstice until the Winter Solstice on December 21.
What is the UV Index in San Isidro at solar noon?
Solar noon occurs at 11:40 AM when the sun reaches 8.32. This produces a relatively low UV exposure day for San Isidro, typical of its Summer season.
Has the sunrise time in San Isidro changed compared to previous years?
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Exactly one year ago in 2025, sunrise was at 5:20 AM, and five years ago in 2021, it was at 5:20 AM.