Bratislava vs Brno: which is sunnier?
🇸🇰 Slovakia vs 🇨🇿 Czechia · 116 km apart · long-term climate normals (NASA POWER, 2001–2020)
Bratislava is the sunnier overall: about 1,795 hours of sunshine a year to Brno's 1,643. Bratislava has the higher Sunshine Score in 4 of 12 months; the other 8 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Bratislava | Brno | |
|---|---|---|
| Sunshine hours / year | 1,795 | 1,643 |
| Sunniest month | September (78/100) | September (77/100) |
| Nov–Feb average score | 2/100 | 0/100 |
| Jun–Aug average score | 77/100 | 75/100 |
| Rain / year | 606 mm | 591 mm |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Bratislava vs Brno month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Bratislava | Brno | Bratislava | Brno | Bratislava | Brno | |
| January | 0 | 0 | 2° | 1° | 42 | 38 |
| February | 0 | 0 | 5° | 3° | 37 | 32 |
| March | 14 | 7 | 10° | 9° | 40 | 36 |
| April | 62 | 55 | 17° | 16° | 34 | 34 |
| May | 77 | 76 | 22° | 20° | 65 | 67 |
| June | 77 | 75 | 26° | 25° | 65 | 69 |
| July | 77 | 75 | 29° | 28° | 63 | 70 |
| August | 77 | 76 | 28° | 27° | 63 | 64 |
| September | 78 | 77 | 23° | 21° | 62 | 61 |
| October | 53 | 40 | 16° | 14° | 49 | 44 |
| November | 7 | 0 | 9° | 8° | 44 | 38 |
| December | 0 | 0 | 3° | 2° | 42 | 38 |
The sunnier month by month: Jan even · Feb even · Mar Bratislava · Apr Bratislava · May even · Jun even · Jul even · Aug even · Sep even · Oct Bratislava · Nov Bratislava · Dec even.
When to pick which
- November–February: too close to call — Bratislava averages 2/100, Brno 0/100. Daytime highs are similar (5°C vs 4°C). See the winter sun ranking.
- March–May: Bratislava (average score 51/100 vs 46). Daytime highs are similar (16°C vs 15°C).
- June–August: too close to call — Bratislava averages 77/100, Brno 75/100. Daytime highs are similar (28°C vs 27°C).
- September–October: Bratislava (average score 66/100 vs 59). Bratislava is the warmer, around 20°C daytime highs vs 18°C.
Full month-by-month guides: Bratislava weather by month · Brno weather by month · Best time to visit Czechia.
More comparisons: Bratislava vs Vienna · Bratislava vs Budapest · Brno vs Vienna · Brno vs Prague · Brno vs Ostrava · all head-to-heads