Sunlight Analysis

Sunlight Hours in Changzhi

Sunlight hours, shadow patterns, and solar analysis for Changzhi, China

Interactive 3D Shadow Map

Summer afternoon in Changzhi

Changzhi

3:30 PM • Summer Solstice

Full Screen

Interactive 3D shadow analysis map of Changzhi. 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.

Drag to rotateScroll to zoomWatch shadows move in real-time

Today's Sunlight

March Average

Sunrise

06:40

Sunset

18:32

Total Daylight

11h 53m

Sun Altitude

52°

at noon

Seasonal Extremes

☀️

Longest Day

14.5h

2026-06-21

❄️

Shortest Day

9.6h

2026-12-21

Interactive 3D

Explore Shadows in 3D

See exactly how building shadows fall across Changzhi at any time of day or year.

Location
Lat

36.1839°

Lng

113.1053°

Launch 3D Map

Best Time to Visit Changzhi

Month-by-month daylight conditions

Changzhi has moderate seasonal variation (4.9h difference between longest and shortest days). May-August offers the best conditions for outdoor activities.

Peak Months

Jun, Jul, May, Aug

Shoulder Season

Apr & Sep

Winter

Jan

9.9h

Fair

Winter

Feb

10.8h

Good

Spring

Mar

11.9h

Great

Spring

Apr

13.0h

Excellent

Spring

May

14.0h

Excellent

Summer

Jun

14.4h

Excellent

Summer

Jul

14.2h

Excellent

Summer

Aug

13.4h

Excellent

Autumn

Sep

12.3h

Great

Autumn

Oct

11.2h

Good

Autumn

Nov

10.2h

Fair

Winter

Dec

9.7h

Fair

Excellent (14h+) Great (12-14h) Good (10-12h) Fair (8-10h) Limited (<8h)

Golden Hour in Changzhi

Best times for photography

March Golden Hour

Morning

06:40 - 07:40

Blue hour from 06:10

Evening

17:32 - 18:32

Blue hour until 19:02

Best Months

  • 1Year-roundConsistent golden hour length
  • 2Oct-AprMilder temperatures for outdoor shoots
  • 3Jun-AugLatest sunsets for evening shoots

Photography Tips

  • Golden hour transitions are relatively quick - be prepared and in position early
  • Midday sun can be harsh; use it for high-contrast architectural photography
  • Face south during midday for even lighting on subjects
  • Check the 3D shadow map to scout locations and predict light direction

Understanding Changzhi's Sunlight

AI-powered insights for your location

Changzhi's mid-latitude location (36.2°N) creates moderate seasonal variation, with winter days 4.9 hours shorter than summer. The sun reaches 77° at summer noon but only 30° in winter.

Key Challenges

  • 1Low winter sun angle (30°) affects south-facing properties
  • 2Consider local weather patterns that may affect sunshine
  • 3Urban 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 Changzhi. Consider shadow patterns from neighboring structures when planning outdoor spaces.

Solar Energy Potential

Is Changzhi good for solar panels?

With approximately 1,985 annual sun hours, Changzhi has good solar potential. A well-designed system can significantly reduce electricity costs.

Annual Sun Hours

1,985

estimated

Optimal Panel Tilt

36°

facing south

Peak Production

Jun, Jul, May

highest output

Relative Monthly Production

Jan
30%
Feb
41%
Mar
56%
Apr
75%
May
92%
Jun
100%
Jul
96%
Aug
81%
Sep
62%
Oct
45%
Nov
32%
Dec
27%

Installation Tips for Changzhi

  • Orient panels south with a 36° 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 (51°), flatter in summer (21°)

UV Index & Sun Safety

Protect yourself in Changzhi

March UV Index

10Very High

Extra protection needed. Avoid midday sun if possible.

UV Index Scale:
1-2 Low3-5 Mod6-7 High8-10 V.High11+ Ext

Monthly UV Index

7
Jan
8
Feb
10
Mar
11
Apr
12
May
12
Jun
12
Jul
12
Aug
10
Sep
9
Oct
7
Nov
7
Dec

Peak UV Months

May, Jun, Jul have the highest UV levels (up to 12). Take extra precautions during these months.

Protection Needed

  • SPF 50+ sunscreen (reapply frequently)
  • Cover up with clothing
  • Avoid sun exposure 10am-4pm

Outdoor Activities in Changzhi

Best times for popular activities

Best Activities in March

🥇

Gardening

54% match

🥈

Outdoor Dining

24% match

🥉

Hiking & Walking

24% match

Year-Round Activity Guide

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Outdoor Dining
Hiking & Walking
Beach & Swimming
Photography
Gardening
Running & Cycling
Best months Good Fair Limited Current month

Outdoor Dining

Enjoy al fresco dining during the warmer months with longer evening light.

Best:Jun, Jul, Aug

Hiking & Walking

Mild temperatures and good daylight make spring and autumn ideal for trails.

Best:Apr, May, Sep

Beach & Swimming

Peak sun and warmest temperatures during summer months.

Best:Jun, Jul, Aug

Seasonal Sunlight Calendar

Monthly averages throughout the year

MonthSunriseSunsetDaylightSun Angle
January
07:4017:33
9h 57m
34°
February
07:1718:06
10h 49m
42°
March
06:4018:32
11h 53m
52°
April
05:5618:58
13h 2m
64°
May
05:2419:24
13h 59m
73°
☀️June
05:1319:43
14h 27m
77°
☀️July
05:2519:41
14h 13m
75°
☀️August
05:4919:14
13h 23m
67°
September
06:1318:31
12h 17m
56°
October
06:3717:48
11h 9m
45°
November
07:0817:16
10h 10m
35°
December
07:3417:11
9h 40m
31°
☀️

Summer Solstice

14.5h daylight

❄️

Winter Solstice

9.6h daylight

Explore Nearby Cities

Sunlight data for surrounding areas

Frequently Asked Questions

Sunlight in Changzhi

1

How many hours of sunlight does Changzhi get?

Changzhi receives an average of 12.1 hours of daylight per day. This varies throughout the year, from 9.6 hours on the shortest day to 14.5 hours on the longest day.

2

What is the sun angle in Changzhi during winter?

During winter solstice, the sun reaches a maximum altitude of only 30.4° above the horizon at solar noon in Changzhi. This creates shadows that are 1.7x the height of objects.

3

When is the best time for outdoor activities in Changzhi?

April through September offers the longest days and highest sun angles in the Northern Hemisphere.

4

How do I plan a garden in Changzhi for maximum sunlight?

South-facing gardens receive the most consistent sunlight year-round in Changzhi. Consider shadow patterns from neighboring structures when planning outdoor spaces.

5

What time is golden hour in Changzhi?

In March, golden hour in Changzhi occurs in the morning from 06:40 - 07:40 and in the evening from 17:32 - 18:32. These times shift throughout the year as sunrise and sunset times change.

6

What is the UV index in Changzhi?

The UV index in Changzhi varies by season. During summer, UV can reach 12 (very high), while winter UV levels are much lower. Always check daily UV forecasts and wear SPF 30+ sunscreen during peak hours (10am-4pm).

7

Are solar panels worth it in Changzhi?

Changzhi receives approximately 1,985 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 36° tilt angle.

8

When is sunrise and sunset in Changzhi?

In March, sunrise in Changzhi is around 06:40 and sunset is around 18:32, giving 11.9 hours of daylight. The earliest sunrise occurs around the summer solstice (05:14) and latest sunset follows shortly after.

9

What is the best month to visit Changzhi for weather?

For optimal daylight and outdoor conditions in Changzhi, 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.

10

How long are shadows in Changzhi?

Shadow length varies dramatically by season in Changzhi. At summer noon, shadows are only 0.2x the height of objects (sun at 77°). In winter, shadows extend to 1.7x object height (sun at just 30°).