96 places · sun position · panel angle
Solar data for Czechia
Across the 96 places in Czechia the best fixed tilt for solar panels runs from 38° in Prague to 39° in Ostrava, and flat ground gets 3.0 to 3.2 peak sun hours a day. Every number is computed for each place.
Solar power in Czechia at a glance
Averages over 96 places with climate data, for a fixed array facing south.
- 2.96–3.01
- 3.01–3.07
- 3.07–3.13
- 3.13–3.19
- 3.19–3.25
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest place in Czechia is Břeclav (South Moravian) with 3.25 peak sun hours a day on flat ground; the least sunny are Děčín and 10 other places with 2.96. A 1 kWp array at its best angle makes from 1,068 kWh a year in Děčín to 1,165 kWh in Břeclav — 1,107 kWh on average.
The best year-round tilt runs from 38° in Prague to 39° in Ostrava. Off-grid systems are sized for the darkest month and do better steeper, at 73° on average: at 70° that month brings 1.20 kWh per kWp a day in Liberec and 1.51 kWh in České Budějovice.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Czechia
Ranked by peak sun hours on flat ground: the yearly average of a day's sunshine energy (NASA POWER climatology). Output: 1 kWp at its best year-round angle.
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 1 | Břeclav | South Moravian | 3.25 | 1,165 | 38° |
| 2 | Hodonín | South Moravian | 3.23 | 1,160 | 38° |
| 3 | Znojmo | South Moravian | 3.21 | 1,156 | 38° |
| 4 | Uherský Brod | Zlín | 3.19 | 1,147 | 38° |
| 4 | Uherské Hradiště | Zlín | 3.19 | 1,147 | 38° |
| 6 | České Budějovice | South Bohemian Region | 3.17 | 1,149 | 38° |
| 6 | Brno střed | South Moravian | 3.17 | 1,140 | 38° |
| 6 | Brno | South Moravian | 3.17 | 1,140 | 38° |
| 6 | Židenice | South Moravian | 3.17 | 1,140 | 38° |
| 10 | Jindřichův Hradec | South Bohemian Region | 3.16 | 1,144 | 38° |
Least sunny places in Czechia
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 86 | Česká Lípa | Liberec Region | 2.96 | 1,069 | 38° |
| 86 | Ústí nad Labem | Ústí nad Labem Region | 2.96 | 1,069 | 39° |
| 86 | Litvínov | Ústí nad Labem Region | 2.96 | 1,068 | 39° |
| 86 | Teplice | Ústí nad Labem Region | 2.96 | 1,068 | 39° |
| 86 | Děčín | Ústí nad Labem Region | 2.96 | 1,068 | 39° |
Solar by region in Czechia
Averages of the places in each region, sunniest first. Darkest month: what 1 kWp of off-grid panels at 70° makes a day in the worst month of the year.
| Region | Places | Sun hours/day | kWh per kWp a year | Best tilt | Darkest month at 70° | Sunniest place |
|---|---|---|---|---|---|---|
| South Moravian | 12 | 3.18 | 1,144 | 38° | 1.39 kWh | Břeclav |
| South Bohemian Region | 5 | 3.15 | 1,141 | 38° | 1.46 kWh | České Budějovice |
| Zlín | 8 | 3.13 | 1,130 | 38° | 1.42 kWh | Uherský Brod |
| Vysocina | 5 | 3.13 | 1,134 | 38° | 1.43 kWh | Třebíč |
| Plzeň Region | 2 | 3.10 | 1,120 | 38° | 1.36 kWh | Klatovy |
| Olomouc Region | 5 | 3.10 | 1,118 | 38° | 1.35 kWh | Přerov |
| Pardubice Region | 5 | 3.06 | 1,109 | 38° | 1.33 kWh | Svitavy |
| Prague | 3 | 3.04 | 1,096 | 38° | 1.31 kWh | Stodůlky |
| Moravian-Silesian Region | 13 | 3.03 | 1,101 | 39° | 1.41 kWh | Nový Jičín |
| Central Bohemia | 15 | 3.03 | 1,095 | 38° | 1.30 kWh | Příbram |
| Carlsbad Region | 4 | 3.00 | 1,087 | 38° | 1.32 kWh | Cheb |
| Hradec Králové Region | 5 | 3.00 | 1,084 | 38° | 1.26 kWh | Hradec Králové |
| Ústí nad Labem Region | 11 | 2.97 | 1,072 | 39° | 1.28 kWh | Žatec |
| Liberec Region | 3 | 2.96 | 1,069 | 38° | 1.20 kWh | Liberec |
Largest places in Czechia at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Prague | 50.1° N | 38° | 73° | 3.04 |
| Brno | 49.2° N | 38° | 72° | 3.17 |
| Ostrava | 49.8° N | 39° | 73° | 3.03 |
| Pilsen | 49.7° N | 38° | 73° | 3.07 |
| Liberec | 50.8° N | 38° | 73° | 2.96 |
| Olomouc | 49.6° N | 38° | 72° | 3.10 |
| České Budějovice | 49.0° N | 38° | 72° | 3.17 |
| Hradec Králové | 50.2° N | 38° | 73° | 3.02 |
| Ústí nad Labem | 50.7° N | 39° | 73° | 2.96 |
| Pardubice | 50.0° N | 38° | 73° | 3.05 |
| Brno střed | 49.2° N | 38° | 72° | 3.17 |
| Havířov | 49.8° N | 39° | 76° | 3.02 |
| Zlín | 49.2° N | 38° | 72° | 3.15 |
| Kladno | 50.1° N | 38° | 73° | 3.02 |
| Most | 50.5° N | 39° | 73° | 2.96 |
| Stodůlky | 50.1° N | 38° | 73° | 3.04 |
| Opava | 49.9° N | 38° | 73° | 3.05 |
| Frýdek-Místek | 49.7° N | 39° | 76° | 3.03 |
| Teplice | 50.6° N | 39° | 73° | 2.96 |
| Jihlava | 49.4° N | 38° | 72° | 3.14 |
Daylight and clock time in Czechia
In Děčín (50.8° N), the northernmost place, the longest day of the year lasts 16 h 30 min and the shortest 7 h 57 min; in Břeclav (48.8° N), the southernmost, 16 h 10 min and 8 h 16 min. The clocks change twice a year: forward on Sun 29 Mar, back on Sun 25 Oct (Europe/Prague).
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Europe/Prague | 96 | UTC+1, in summer UTC+2 | Forward on Sun 29 Mar, back on Sun 25 Oct |