Buenos Aires Sunrise & Sunset: October 2026
Day-by-day sunrise and sunset times with golden hour data
In Buenos Aires in October, sunrise averages 06:11 and sunset averages 19:09. Days are getting longer through October at Buenos Aires's latitude of -34.6°. Golden hour lasts approximately 30 to 60 minutes after sunrise and before sunset. Times are accurate to within 1 minute.
Avg Sunrise
06:11
Avg Sunset
19:09
Avg Daylight
12h 57m
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Monthly Sunrise & Sunset Table: Buenos Aires
| Date | Day | Sunrise | Sunset | Daylight |
|---|---|---|---|---|
| 10/01 | Thu | 06:31 | 18:57 | 12h 26m |
| 10/02 | Fri | 06:30 | 18:58 | 12h 28m |
| 10/03 | Sat | 06:28 | 18:58 | 12h 30m |
| 10/04 | Sun | 06:27 | 18:59 | 12h 32m |
| 10/05 | Mon | 06:25 | 19:00 | 12h 34m |
| 10/06 | Tue | 06:24 | 19:01 | 12h 36m |
| 10/07 | Wed | 06:23 | 19:01 | 12h 39m |
| 10/08 | Thu | 06:21 | 19:02 | 12h 41m |
| 10/09 | Fri | 06:20 | 19:03 | 12h 43m |
| 10/10 | Sat | 06:19 | 19:04 | 12h 45m |
| 10/11 | Sun | 06:17 | 19:05 | 12h 47m |
| 10/12 | Mon | 06:16 | 19:05 | 12h 49m |
| 10/13 | Tue | 06:15 | 19:06 | 12h 51m |
| 10/14 | Wed | 06:13 | 19:07 | 12h 54m |
| 10/15 | Thu | 06:12 | 19:08 | 12h 56m |
| 10/16 | Fri | 06:11 | 19:09 | 12h 58m |
| 10/17 | Sat | 06:10 | 19:09 | 13h 00m |
| 10/18 | Sun | 06:08 | 19:10 | 13h 02m |
| 10/19 | Mon | 06:07 | 19:11 | 13h 04m |
| 10/20 | Tue | 06:06 | 19:12 | 13h 06m |
| 10/21 | Wed | 06:05 | 19:13 | 13h 08m |
| 10/22 | Thu | 06:04 | 19:14 | 13h 10m |
| 10/23 | Fri | 06:02 | 19:15 | 13h 12m |
| 10/24 | Sat | 06:01 | 19:16 | 13h 14m |
| 10/25 | Sun | 06:00 | 19:16 | 13h 16m |
| 10/26 | Mon | 05:59 | 19:17 | 13h 18m |
| 10/27 | Tue | 05:58 | 19:18 | 13h 20m |
| 10/28 | Wed | 05:57 | 19:19 | 13h 22m |
| 10/29 | Thu | 05:56 | 19:20 | 13h 24m |
| 10/30 | Fri | 05:55 | 19:21 | 13h 26m |
| 10/31 | Sat | 05:54 | 19:22 | 13h 28m |
Daylight Hours Throughout the Year
October Sunrise & Sunset in Buenos Aires: Complete Monthly Guide
In October 2026, Buenos Aires has an average of 12h 57m of daylight per day. Sunrise times range from 06:31 at the start of the month to 05:54 at the end, while sunset shifts from 18:57 to 19:22.
October in Buenos Aires brings lengthening spring days in the southern hemisphere. Average sunrise in October is 06:11 and average sunset is 19:09. The daily table above shows the exact sunrise and sunset time for each day of the month.
Day Length Variation in October
Day length in Buenos Aires in October changes throughout the month. Near the solstices (June 21 for the northern hemisphere, December 21 for the southern hemisphere), day length changes very slowly, less than 1 minute per day. Near the equinoxes (March 20 and September 22), day length changes rapidly, gaining or losing 2 to 4 minutes per day depending on latitude.
At Buenos Aires's latitude of -34.6°, the rate of day length change in October is approximately 1 to 2 minutes per day during the weeks furthest from the solstices. This means that sunrise in Buenos Aires shifts by approximately 20 to 40 minutes over the course of October.
Golden Hour in Buenos Aires in October
Golden hour in Buenos Aires in October occurs twice each day: in the morning shortly after sunrise, and in the evening before sunset. The duration depends on the sun's angle of elevation above the horizon, which varies with latitude and month. In Octoberat Buenos Aires's latitude of -34.6°, golden hour lasts approximately 40 to 65 minutes.
For photographers planning shoots in Buenos Aires in October: plan to arrive at your location 30 to 40 minutes before the listed sunrise time to capture blue hour before golden hour begins. The transition from blue hour to golden hour creates the most dramatic color sequences. Evening golden hour in October begins about 45 to 60 minutes before sunset and produces warmer, more orange tones than the morning session.
Blue Hour and Twilight in Buenos Aires in October
Civil twilight in Buenos Aires in October begins before sunrise and ends after sunset, creating windows of usable natural light even outside the official sunrise-to-sunset window. Civil twilight occurs when the sun is between 0 and 6 degrees below the horizon. Nautical twilight spans 6 to 12 degrees below the horizon. Astronomical twilight spans 12 to 18 degrees below the horizon.
The total twilight window in Buenos Aires in October extends the usable light day by approximately 45 to 70 minutes beyond the sunrise-to-sunset window. This extended twilight is valuable for photographers who want to shoot in soft, diffused light without harsh shadows.
Photography Tips for October in Buenos Aires
Shooting in Buenos Aires in October requires adapting to the season's specific light quality and timing. Camera settings for sunrise photography in October:
- Blue hour: ISO 800 to 1,600; aperture f/8; shutter speed 10 to 30 seconds on tripod.
- Golden hour: ISO 100 to 400; aperture f/8 to f/16 for landscapes, or f/1.8 to f/2.8 for portraits; shutter speed 1/250 to 1/1,000s handheld.
- Post-sunrise (30 minutes after): ISO 100; aperture f/11; shutter speed 1/500 to 1/2,000s.
In October, Buenos Aires's weather patterns affect photography conditions. Check cloud cover forecasts the evening before a planned shoot: a thin layer of clouds above the horizon creates more dramatic golden and orange tones than a clear sky. Fully overcast conditions produce flat, diffused light that is good for portraits but lacks the dramatic quality of golden hour. Partly cloudy skies create the most dramatic conditions.
About This Monthly Sunrise Data
All sunrise and sunset times in this October table for Buenos Aires are calculated using Jean Meeus astronomical algorithms, implemented via the SunCalc library. Calculations use the coordinates of Buenos Aires (-34.6037°, -58.3816°) and the local timezone (America/Argentina/Buenos_Aires). Times are accurate to within 1 minute and account for atmospheric refraction.
The times shown are for the center of the sun crossing the horizon. Sunrise is defined as the moment when the upper limb of the sun first appears above the mathematical horizon. Sunset is when the upper limb disappears below the horizon. Both definitions account for atmospheric refraction, which lifts the apparent position of the sun by approximately 0.5 to 1 degree near the horizon.
Frequently Asked Questions: October Sunrise & Sunset in Buenos Aires
What is the average sunrise time in Buenos Aires in October?
The average sunrise time in Buenos Aires in October 2026 is approximately 06:11. This is based on the mid-month calculation for Buenos Aires at latitude -34.60° and longitude -58.38°. Actual daily sunrise times vary from 06:31 on the first of the month to 05:54 on the last day. See the full daily table above for exact times.
How many hours of daylight does Buenos Aires get in October?
Buenos Aires receives an average of 12h 57m of daylight per day in October 2026. This is calculated as the difference between sunrise and sunset and does not include twilight periods. Day length varies from 12h 26m on the first of the month to 13h 28m on the last day.
What is the earliest sunrise in Buenos Aires in October?
The earliest sunrise in Buenos Aires in October 2026 occurs on 2026-10-31 at 05:54. The latest sunrise in the month occurs on 2026-10-01 at 06:31.
What time is golden hour in Buenos Aires in October?
Golden hour in Buenos Aires in October occurs twice daily. Morning golden hour begins at sunrise (06:11 at mid-month) and lasts approximately 40 to 65 minutes. Evening golden hour begins approximately 45 to 60 minutes before sunset (19:09 at mid-month). The precise start of golden hour is when the sun's altitude drops below 6 degrees above the horizon.
Is October a good time to photograph sunrise in Buenos Aires?
October is spring in Buenos Aires's southern hemisphere location. Sunrise at 06:11 provides a reasonable start time for photography.
When does civil twilight start in Buenos Aires in October?
Civil twilight in Buenos Aires in October begins approximately 20 to 30 minutes before sunrise and ends 20 to 30 minutes after sunset. At Buenos Aires's latitude of -34.6°, civil twilight in October starts around 05:46 in the morning. Civil twilight provides enough light for outdoor activities without artificial lighting and is considered the beginning of the usable photography window each day.