Wrocław vs Ostrava: which is sunnier?
🇵🇱 Poland vs 🇨🇿 Czechia · 179 km apart · long-term climate normals (NASA POWER, 2001–2020)
Wrocław is the sunnier overall: about 1,664 hours of sunshine a year to Ostrava's 1,541. Wrocław has the higher Sunshine Score in 5 of 12 months; the other 7 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Wrocław | Ostrava | |
|---|---|---|
| Sunshine hours / year | 1,664 | 1,541 |
| Sunniest month | September (78/100) | August (73/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 75/100 | 71/100 |
| Rain / year | 634 mm | 818 mm |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Wrocław vs Ostrava month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Wrocław | Ostrava | Wrocław | Ostrava | Wrocław | Ostrava | |
| January | 0 | 0 | 1° | 0° | 43 | 55 |
| February | 0 | 0 | 3° | 2° | 34 | 49 |
| March | 0 | 0 | 8° | 8° | 41 | 51 |
| April | 47 | 46 | 15° | 15° | 37 | 51 |
| May | 76 | 65 | 20° | 19° | 69 | 92 |
| June | 75 | 70 | 24° | 23° | 74 | 94 |
| July | 73 | 70 | 26° | 26° | 84 | 96 |
| August | 76 | 73 | 26° | 26° | 68 | 80 |
| September | 78 | 72 | 21° | 20° | 57 | 82 |
| October | 40 | 38 | 14° | 14° | 47 | 64 |
| November | 0 | 0 | 8° | 8° | 41 | 52 |
| December | 0 | 0 | 3° | 2° | 39 | 52 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May Wrocław · Jun Wrocław · Jul Wrocław · Aug Wrocław · Sep Wrocław · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Wrocław averages 0/100, Ostrava 0/100. Daytime highs are similar (4°C vs 3°C). See the winter sun ranking.
- March–May: Wrocław (average score 41/100 vs 37). Daytime highs are similar (14°C vs 14°C).
- June–August: Wrocław (average score 75/100 vs 71). Daytime highs are similar (25°C vs 25°C).
- September–October: Wrocław (average score 59/100 vs 55). Daytime highs are similar (18°C vs 17°C).
Full month-by-month guides: Wrocław weather by month · Ostrava weather by month · Best time to visit Poland · Best time to visit Czechia.
More comparisons: Wrocław vs Katowice · Wrocław vs Poznań · Ostrava vs Katowice · Ostrava vs Kraków · Ostrava vs Brno · all head-to-heads