Sunlight Hours in Thuận An
Sunlight hours, shadow patterns, and solar analysis for Thuận An, Vietnam
Interactive 3D Shadow Map
Summer afternoon in Thuận An
Thuận An
3:30 PM • Summer Solstice
Interactive 3D shadow analysis map of Thuận An. 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
05:44
Sunset
18:01
Total Daylight
12h 18m
Sun Altitude
86°
at noon
Seasonal Extremes
Longest Day
12.7h
2026-06-21
Shortest Day
11.4h
2026-12-21
Explore Shadows in 3D
See exactly how building shadows fall across Thuận An at any time of day or year.
10.9239°
106.7143°
Best Time to Visit Thuận An
Month-by-month daylight conditions
Thuận An lies in the tropics with consistent daylight year-round. Any time of year offers good sunlight conditions.
Peak Months
Jun, Jul, May, Aug
Shoulder Season
Apr & Sep
Winter
Jan
11.5h
Great
Winter
Feb
11.7h
Great
Spring
Mar
12.0h
Great
Spring
Apr
12.3h
Excellent
Spring
May
12.5h
Excellent
Summer
Jun
12.7h
Excellent
Summer
Jul
12.6h
Excellent
Summer
Aug
12.4h
Excellent
Autumn
Sep
12.1h
Great
Autumn
Oct
11.8h
Great
Autumn
Nov
11.6h
Great
Winter
Dec
11.4h
Good
Golden Hour in Thuận An
Best times for photography
April Golden Hour
05:44 - 06:44
Blue hour from 05:14
17:01 - 18:01
Blue hour until 18:31
Best Months
- 1Year-round — Consistent golden hour length
- 2Oct-Apr — Milder temperatures for outdoor shoots
- 3Jun-Aug — 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 south during midday for even lighting on subjects
- Check the 3D shadow map to scout locations and predict light direction
Understanding Thuận An's Sunlight
AI-powered insights for your location
Thuận An's tropical location (10.9°N) creates minimal seasonal variation, with winter days 1.3 hours shorter than summer. The sun reaches 78° at summer noon but only 56° in winter.
Key Challenges
- 1Consider local weather patterns that may affect sunshine
- 2Urban buildings may create additional shadows
Best Months
April through September offers the longest days and highest sun angles in the Northern Hemisphere.
Garden Tips
South-facing gardens receive the most consistent sunlight year-round in Thuận An. Consider shadow patterns from neighboring structures when planning outdoor spaces.
Solar Energy Potential
Is Thuận An good for solar panels?
Thuận An receives approximately 2,419 hours of sunshine annually, making it an excellent location for solar energy. Most residential installations achieve payback within 5-7 years.
Annual Sun Hours
2,419
estimated
Optimal Panel Tilt
11°
facing south
Peak Production
Apr, Aug, May
highest output
Relative Monthly Production
Installation Tips for Thuận An
- Orient panels south with a 11° 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 (26°), flatter in summer (10°)
UV Index & Sun Safety
Protect yourself in Thuận An
April UV Index
Maximum protection essential. Avoid outdoor activities during peak hours.
Monthly UV Index
Peak UV Months
Mar, Apr, May 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 Thuận An
Best times for popular activities
Best Activities in April
Outdoor Dining
57% match
Hiking & Walking
57% match
Beach & Swimming
57% 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 | 06:18 | 17:47 | 11h 30m | 59° |
February | 06:15 | 17:58 | 11h 43m | 67° |
March | 06:02 | 18:01 | 12h 0m | 78° |
April | 05:44 | 18:01 | 12h 18m | 86° |
May | 05:33 | 18:06 | 12h 32m | 82° |
☀️June | 05:33 | 18:14 | 12h 40m | 78° |
☀️July | 05:40 | 18:17 | 12h 36m | 80° |
☀️August | 05:45 | 18:09 | 12h 23m | 86° |
September | 05:45 | 17:51 | 12h 6m | 82° |
October | 05:44 | 17:32 | 11h 48m | 70° |
November | 05:51 | 17:23 | 11h 33m | 61° |
December | 06:06 | 17:30 | 11h 26m | 56° |
Summer Solstice
12.7h daylight
Winter Solstice
11.4h daylight
Explore Nearby Cities
Sunlight data for surrounding areas
Frequently Asked Questions
Sunlight in Thuận An
1How many hours of sunlight does Thuận An get?
How many hours of sunlight does Thuận An get?
Thuận An receives an average of 12 hours of daylight per day. This varies throughout the year, from 11.4 hours on the shortest day to 12.7 hours on the longest day.
2What is the sun angle in Thuận An during winter?
What is the sun angle in Thuận An during winter?
During winter solstice, the sun reaches a maximum altitude of only 55.6° above the horizon at solar noon in Thuận An. This creates shadows that are 0.7x the height of objects.
3When is the best time for outdoor activities in Thuận An?
When is the best time for outdoor activities in Thuận An?
April through September offers the longest days and highest sun angles in the Northern Hemisphere.
4How do I plan a garden in Thuận An for maximum sunlight?
How do I plan a garden in Thuận An for maximum sunlight?
South-facing gardens receive the most consistent sunlight year-round in Thuận An. Consider shadow patterns from neighboring structures when planning outdoor spaces.
5What time is golden hour in Thuận An?
What time is golden hour in Thuận An?
In April, golden hour in Thuận An occurs in the morning from 05:44 - 06:44 and in the evening from 17:01 - 18:01. These times shift throughout the year as sunrise and sunset times change.
6What is the UV index in Thuận An?
What is the UV index in Thuận An?
The UV index in Thuận An 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 Thuận An?
Are solar panels worth it in Thuận An?
Thuận An receives approximately 2,419 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 south at a 11° tilt angle.
8When is sunrise and sunset in Thuận An?
When is sunrise and sunset in Thuận An?
In April, sunrise in Thuận An is around 05:44 and sunset is around 18:01, giving 12.3 hours of daylight. The earliest sunrise occurs around the summer solstice (05:34) and latest sunset follows shortly after.
9What is the best month to visit Thuận An for weather?
What is the best month to visit Thuận An for weather?
For optimal daylight and outdoor conditions in Thuận An, April through September offers the longest days and highest sun angles in the Northern Hemisphere. The shoulder seasons often offer a good balance of pleasant weather and fewer crowds.
10How long are shadows in Thuận An?
How long are shadows in Thuận An?
Shadow length varies dramatically by season in Thuận An. At summer noon, shadows are only 0.2x the height of objects (sun at 78°). In winter, shadows extend to 0.7x object height (sun at just 56°).