Sunlight Hours in São José do Rio Preto
Sunlight hours, shadow patterns, and solar analysis for São José do Rio Preto, Brazil
Interactive 3D Shadow Map
Summer afternoon in São José do Rio Preto
São José do Rio Preto
3:30 PM • Summer Solstice
Interactive 3D shadow analysis map of São José do Rio Preto. Shows real building shadows based on sun position calculations. Features include: time-of-day simulation, date selection for seasonal analysis, 3D building rendering, tree shadows, terrain elevation, and sun position indicators. Powered by Mapbox GL JS and SunCalc astronomical calculations.
Today's Sunlight
April Average
Sunrise
06:31
Sunset
18:03
Total Daylight
11h 32m
Sun Altitude
59°
at noon
Seasonal Extremes
Longest Day
13.3h
2026-12-21
Shortest Day
10.8h
2026-06-21
Explore Shadows in 3D
See exactly how building shadows fall across São José do Rio Preto at any time of day or year.
-20.8197°
-49.3794°
Best Time to Visit São José do Rio Preto
Month-by-month daylight conditions
São José do Rio Preto lies in the tropics with consistent daylight year-round. Any time of year offers good sunlight conditions.
Peak Months
Dec, Jan, Nov, Feb
Shoulder Season
Oct & Mar
Summer
Jan
13.1h
Excellent
Summer
Feb
12.7h
Excellent
Autumn
Mar
12.1h
Great
Autumn
Apr
11.5h
Great
Autumn
May
11.1h
Good
Winter
Jun
10.8h
Good
Winter
Jul
10.9h
Good
Winter
Aug
11.3h
Good
Spring
Sep
11.9h
Great
Spring
Oct
12.5h
Great
Spring
Nov
13.0h
Excellent
Summer
Dec
13.3h
Excellent
Golden Hour in São José do Rio Preto
Best times for photography
April Golden Hour
06:31 - 07:31
Blue hour from 06:01
17:03 - 18:03
Blue hour until 18:33
Best Months
- 1Year-round — Consistent golden hour length
- 2Apr-Oct — Milder temperatures for outdoor shoots
- 3Dec-Feb — Latest sunsets for evening shoots
Photography Tips
- In the tropics, golden hour is brief but intense - arrive early to your location
- The sun rises and sets nearly vertically, creating short but vibrant color displays
- Face north during midday for even lighting on subjects
- Check the 3D shadow map to scout locations and predict light direction
Understanding São José do Rio Preto's Sunlight
AI-powered insights for your location
São José do Rio Preto's tropical location (20.8°S) creates minimal seasonal variation, with winter days 2.5 hours shorter than summer. The sun reaches 87° at summer noon but only 46° in winter.
Key Challenges
- 1Consider local weather patterns that may affect sunshine
- 2Urban buildings may create additional shadows
Best Months
October through March offers the longest days and highest sun angles in the Southern Hemisphere.
Garden Tips
North-facing gardens receive the most consistent sunlight year-round in São José do Rio Preto. Consider shadow patterns from neighboring structures when planning outdoor spaces.
Solar Energy Potential
Is São José do Rio Preto good for solar panels?
São José do Rio Preto receives approximately 2,413 hours of sunshine annually, making it an excellent location for solar energy. Most residential installations achieve payback within 5-7 years.
Annual Sun Hours
2,413
estimated
Optimal Panel Tilt
21°
facing north
Peak Production
Dec, Jan, Nov
highest output
Relative Monthly Production
Installation Tips for São José do Rio Preto
- Orient panels north with a 21° tilt for optimal year-round performance
- Use the 3D shadow map to check for obstructions from trees or neighboring buildings
- Consider seasonal tilt adjustment: steeper in winter (36°), flatter in summer (10°)
UV Index & Sun Safety
Protect yourself in São José do Rio Preto
April UV Index
Maximum protection essential. Avoid outdoor activities during peak hours.
Monthly UV Index
Peak UV Months
Jan, Nov, Dec have the highest UV levels (up to 14). Take extra precautions during these months.
Protection Needed
- SPF 50+ broad-spectrum sunscreen
- Full coverage clothing and wide-brim hat
- Stay indoors 10am-4pm
Outdoor Activities in São José do Rio Preto
Best times for popular activities
Best Activities in April
Outdoor Dining
22% match
Hiking & Walking
22% match
Beach & Swimming
22% match
Year-Round Activity Guide
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outdoor Dining | ★ | ★ | ★ | ★ | ★ | ★ | ||||||
| Hiking & Walking | ★ | ★ | ★ | ★ | ★ | ★ | ||||||
| Beach & Swimming | ★ | ★ | ★ | ★ | ★ | ★ | ||||||
| Photography | ★ | ★ | ★ | ★ | ★ | ★ | ||||||
| Gardening | ★ | ★ | ★ | ★ | ★ | ★ | ||||||
| Running & Cycling | ★ | ★ | ★ | ★ | ★ | ★ |
Outdoor Dining
Enjoy al fresco dining during the warmer months with longer evening light.
Hiking & Walking
Mild temperatures and good daylight make spring and autumn ideal for trails.
Beach & Swimming
Peak sun and warmest temperatures during summer months.
Seasonal Sunlight Calendar
Monthly averages throughout the year
| Month | Sunrise | Sunset | Daylight | Sun Angle |
|---|---|---|---|---|
☀️January | 05:51 | 19:01 | 13h 8m | 88° |
☀️February | 06:10 | 18:51 | 12h 41m | 82° |
March | 06:22 | 18:30 | 12h 8m | 71° |
April | 06:31 | 18:03 | 11h 32m | 59° |
May | 06:42 | 17:44 | 11h 3m | 51° |
June | 06:54 | 17:41 | 10h 49m | 46° |
July | 06:56 | 17:50 | 10h 56m | 48° |
August | 06:42 | 18:01 | 11h 20m | 56° |
September | 06:16 | 18:09 | 11h 54m | 67° |
October | 05:49 | 18:17 | 12h 29m | 78° |
November | 05:31 | 18:32 | 13h 1m | 87° |
☀️December | 05:33 | 18:51 | 13h 16m | 88° |
Summer Solstice
13.3h daylight
Winter Solstice
10.8h daylight
Frequently Asked Questions
Sunlight in São José do Rio Preto
1How many hours of sunlight does São José do Rio Preto get?
How many hours of sunlight does São José do Rio Preto get?
São José do Rio Preto receives an average of 12 hours of daylight per day. This varies throughout the year, from 10.8 hours on the shortest day to 13.3 hours on the longest day.
2What is the sun angle in São José do Rio Preto during winter?
What is the sun angle in São José do Rio Preto during winter?
During winter solstice, the sun reaches a maximum altitude of only 45.7° above the horizon at solar noon in São José do Rio Preto. This creates shadows that are 1.0x the height of objects.
3When is the best time for outdoor activities in São José do Rio Preto?
When is the best time for outdoor activities in São José do Rio Preto?
October through March offers the longest days and highest sun angles in the Southern Hemisphere.
4How do I plan a garden in São José do Rio Preto for maximum sunlight?
How do I plan a garden in São José do Rio Preto for maximum sunlight?
North-facing gardens receive the most consistent sunlight year-round in São José do Rio Preto. Consider shadow patterns from neighboring structures when planning outdoor spaces.
5What time is golden hour in São José do Rio Preto?
What time is golden hour in São José do Rio Preto?
In April, golden hour in São José do Rio Preto occurs in the morning from 06:31 - 07:31 and in the evening from 17:03 - 18:03. These times shift throughout the year as sunrise and sunset times change.
6What is the UV index in São José do Rio Preto?
What is the UV index in São José do Rio Preto?
The UV index in São José do Rio Preto varies by season. During summer, UV can reach 14 (very high), while winter UV levels are much lower. Always check daily UV forecasts and wear SPF 30+ sunscreen during peak hours (10am-4pm).
7Are solar panels worth it in São José do Rio Preto?
Are solar panels worth it in São José do Rio Preto?
São José do Rio Preto receives approximately 2,413 hours of sunshine annually. This makes it a good location for solar panels, with typical payback periods of 5-10 years. For optimal performance, orient panels north at a 21° tilt angle.
8When is sunrise and sunset in São José do Rio Preto?
When is sunrise and sunset in São José do Rio Preto?
In April, sunrise in São José do Rio Preto is around 06:31 and sunset is around 18:03, giving 11.5 hours of daylight. The earliest sunrise occurs around the summer solstice (05:36) and latest sunset follows shortly after.
9What is the best month to visit São José do Rio Preto for weather?
What is the best month to visit São José do Rio Preto for weather?
For optimal daylight and outdoor conditions in São José do Rio Preto, October through March offers the longest days and highest sun angles in the Southern Hemisphere. The shoulder seasons often offer a good balance of pleasant weather and fewer crowds.
10How long are shadows in São José do Rio Preto?
How long are shadows in São José do Rio Preto?
Shadow length varies dramatically by season in São José do Rio Preto. At summer noon, shadows are only 0.1x the height of objects (sun at 87°). In winter, shadows extend to 1.0x object height (sun at just 46°).