Sunlight Analysis

Sunlight Hours in Surakarta

Sunlight hours, shadow patterns, and solar analysis for Surakarta, Indonesia

Interactive 3D Shadow Map

Summer afternoon in Surakarta

Surakarta

3:30 PM • Summer Solstice

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Interactive 3D shadow analysis map of Surakarta. 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

05:43

Sunset

17:47

Total Daylight

12h 4m

Sun Altitude

84°

at noon

Seasonal Extremes

☀️

Longest Day

12.5h

2026-12-21

❄️

Shortest Day

11.6h

2026-06-21

Interactive 3D

Explore Shadows in 3D

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

Location
Lat

-7.5561°

Lng

110.8317°

Launch 3D Map

Best Time to Visit Surakarta

Month-by-month daylight conditions

Surakarta 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

12.4h

Great

Summer

Feb

12.3h

Great

Autumn

Mar

12.1h

Great

Autumn

Apr

11.8h

Great

Autumn

May

11.7h

Great

Winter

Jun

11.6h

Great

Winter

Jul

11.7h

Great

Winter

Aug

11.8h

Great

Spring

Sep

12.0h

Great

Spring

Oct

12.2h

Great

Spring

Nov

12.4h

Great

Summer

Dec

12.5h

Great

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

Golden Hour in Surakarta

Best times for photography

March Golden Hour

Morning

05:43 - 06:43

Blue hour from 05:13

Evening

16:47 - 17:47

Blue hour until 18:17

Best Months

  • 1Year-roundConsistent golden hour length
  • 2Apr-OctMilder temperatures for outdoor shoots
  • 3Dec-FebLatest 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 Surakarta's Sunlight

AI-powered insights for your location

Surakarta's tropical location (7.6°S) creates minimal seasonal variation, with winter days 0.9 hours shorter than summer. The sun reaches 74° at summer noon but only 59° 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 Surakarta. Consider shadow patterns from neighboring structures when planning outdoor spaces.

Solar Energy Potential

Is Surakarta good for solar panels?

Surakarta receives approximately 2,415 hours of sunshine annually, making it an excellent location for solar energy. Most residential installations achieve payback within 5-7 years.

Annual Sun Hours

2,415

estimated

Optimal Panel Tilt

8°

facing north

Peak Production

Oct, Feb, Mar

highest output

Relative Monthly Production

Jan
91%
Feb
100%
Mar
97%
Apr
82%
May
71%
Jun
66%
Jul
68%
Aug
78%
Sep
92%
Oct
100%
Nov
93%
Dec
89%

Installation Tips for Surakarta

  • Orient panels north with a 8° 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 (23°), flatter in summer (10°)

UV Index & Sun Safety

Protect yourself in Surakarta

March UV Index

14Extreme

Maximum protection essential. Avoid outdoor activities during peak hours.

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

Monthly UV Index

14
Jan
14
Feb
14
Mar
14
Apr
13
May
13
Jun
13
Jul
14
Aug
14
Sep
14
Oct
14
Nov
14
Dec

Peak UV Months

Jan, Feb, Mar 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 Surakarta

Best times for popular activities

Best Activities in March

🥇

Outdoor Dining

25% match

🥈

Hiking & Walking

25% match

🥉

Beach & Swimming

25% 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:May, Jun, Jul

Hiking & Walking

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

Best:May, Jun, Jul

Beach & Swimming

Peak sun and warmest temperatures during summer months.

Best:May, Jun, Jul

Seasonal Sunlight Calendar

Monthly averages throughout the year

MonthSunriseSunsetDaylightSun Angle
☀️January
05:3317:59
12h 25m
77°
☀️February
05:4217:58
12h 16m
85°
March
05:4317:47
12h 4m
84°
April
05:4017:32
11h 51m
72°
May
05:4217:23
11h 41m
64°
June
05:4917:25
11h 37m
60°
July
05:5317:32
11h 39m
62°
August
05:4717:34
11h 48m
69°
September
05:3217:31
11h 59m
80°
October
05:1617:28
12h 12m
86°
November
05:0917:32
12h 23m
79°
☀️December
05:1717:46
12h 28m
75°
☀️

Summer Solstice

12.5h daylight

❄️

Winter Solstice

11.6h daylight

Explore Nearby Cities

Sunlight data for surrounding areas

Frequently Asked Questions

Sunlight in Surakarta

1

How many hours of sunlight does Surakarta get?

Surakarta receives an average of 12 hours of daylight per day. This varies throughout the year, from 11.6 hours on the shortest day to 12.5 hours on the longest day.

2

What is the sun angle in Surakarta during winter?

During winter solstice, the sun reaches a maximum altitude of only 59.0° above the horizon at solar noon in Surakarta. This creates shadows that are 0.6x the height of objects.

3

When is the best time for outdoor activities in Surakarta?

October through March offers the longest days and highest sun angles in the Southern Hemisphere.

4

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

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

5

What time is golden hour in Surakarta?

In March, golden hour in Surakarta occurs in the morning from 05:43 - 06:43 and in the evening from 16:47 - 17:47. These times shift throughout the year as sunrise and sunset times change.

6

What is the UV index in Surakarta?

The UV index in Surakarta 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).

7

Are solar panels worth it in Surakarta?

Surakarta receives approximately 2,415 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 8° tilt angle.

8

When is sunrise and sunset in Surakarta?

In March, sunrise in Surakarta is around 05:43 and sunset is around 17:47, giving 12.1 hours of daylight. The earliest sunrise occurs around the summer solstice (05:20) and latest sunset follows shortly after.

9

What is the best month to visit Surakarta for weather?

For optimal daylight and outdoor conditions in Surakarta, 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.

10

How long are shadows in Surakarta?

Shadow length varies dramatically by season in Surakarta. At summer noon, shadows are only 0.3x the height of objects (sun at 74°). In winter, shadows extend to 0.6x object height (sun at just 59°).