Ostrava vs Brno: which is sunnier?
🇨🇿 Czechia vs 🇨🇿 Czechia · 119 km apart · long-term climate normals (NASA POWER, 2001–2020)
Brno is the sunnier overall: about 1,643 hours of sunshine a year to Ostrava's 1,541. Brno has the higher Sunshine Score in 7 of 12 months; the other 5 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Ostrava | Brno | |
|---|---|---|
| Sunshine hours / year | 1,541 | 1,643 |
| Sunniest month | August (73/100) | September (77/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 71/100 | 75/100 |
| Rain / year | 818 mm | 591 mm |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Ostrava vs Brno month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Ostrava | Brno | Ostrava | Brno | Ostrava | Brno | |
| January | 0 | 0 | 0° | 1° | 55 | 38 |
| February | 0 | 0 | 2° | 3° | 49 | 32 |
| March | 0 | 7 | 8° | 9° | 51 | 36 |
| April | 46 | 55 | 15° | 16° | 51 | 34 |
| May | 65 | 76 | 19° | 20° | 92 | 67 |
| June | 70 | 75 | 23° | 25° | 94 | 69 |
| July | 70 | 75 | 26° | 28° | 96 | 70 |
| August | 73 | 76 | 26° | 27° | 80 | 64 |
| September | 72 | 77 | 20° | 21° | 82 | 61 |
| October | 38 | 40 | 14° | 14° | 64 | 44 |
| November | 0 | 0 | 8° | 8° | 52 | 38 |
| December | 0 | 0 | 2° | 2° | 52 | 38 |
The sunnier month by month: Jan even · Feb even · Mar Brno · Apr Brno · May Brno · Jun Brno · Jul Brno · Aug Brno · Sep Brno · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Ostrava averages 0/100, Brno 0/100. Daytime highs are similar (3°C vs 4°C). See the winter sun ranking.
- March–May: Brno (average score 46/100 vs 37). Daytime highs are similar (14°C vs 15°C).
- June–August: Brno (average score 75/100 vs 71). Brno is the warmer, around 27°C daytime highs vs 25°C.
- September–October: Brno (average score 59/100 vs 55). Daytime highs are similar (17°C vs 18°C).
Full month-by-month guides: Ostrava weather by month · Brno weather by month · Best time to visit Czechia.
More comparisons: Ostrava vs Katowice · Ostrava vs Kraków · Ostrava vs Wrocław · Brno vs Vienna · Brno vs Prague · Brno vs Bratislava · all head-to-heads