Is Katowice sunnier than Ostrava?

They are nearly tied: Katowice gets about 1,606 hours of sunshine a year and Ostrava about 1,541.

Which is warmer, Katowice or Ostrava?

Year-round daytime highs are similar: Katowice averages 13°C (55°F), Ostrava 14°C (57°F).

Which is better in winter (November–February), Katowice or Ostrava?

They are close in the November–February window: Katowice averages 0/100 (about 2°C days), Ostrava 0/100 (about 3°C).

Katowice vs Ostrava: which is sunnier?

🇵🇱 Poland vs 🇨🇿 Czechia · 111 km apart · long-term climate normals (NASA POWER, 2001–2020)

Katowice and Ostrava are virtually tied for annual sunshine — about 1,606 vs 1,541 hours a year. Month by month it's balanced: each has the higher Sunshine Score in 2 months, with 8 within 2 points.

Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance

	Katowice	Ostrava
Sunshine hours / year	1,606	1,541
Sunniest month	September (76/100)	August (73/100)
Nov–Feb average score	0/100	0/100
Jun–Aug average score	73/100	71/100
Rain / year	715 mm	818 mm
Peak midday UV	5 (moderate)	5 (moderate)

Katowice vs Ostrava month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Katowice	Ostrava	Katowice	Ostrava	Katowice	Ostrava
January	0	0	-1°	0°	47	55
February	0	0	1°	2°	41	49
March	0	0	7°	8°	46	51
April	40	46	14°	15°	47	51
May	66	65	19°	19°	87	92
June	73	70	23°	23°	83	94
July	72	70	25°	26°	87	96
August	75	73	25°	26°	69	80
September	76	72	20°	20°	66	82
October	33	38	13°	14°	53	64
November	0	0	7°	8°	46	52
December	0	0	1°	2°	43	52

The sunnier month by month: Jan even · Feb even · Mar even · Apr Ostrava · May even · Jun Katowice · Jul even · Aug even · Sep Katowice · Oct Ostrava · Nov even · Dec even.

When to pick which

November–February: too close to call — Katowice averages 0/100, Ostrava 0/100. Daytime highs are similar (2°C vs 3°C). See the winter sun ranking.
March–May: too close to call — Katowice averages 35/100, Ostrava 37/100. Daytime highs are similar (13°C vs 14°C).
June–August: too close to call — Katowice averages 73/100, Ostrava 71/100. Daytime highs are similar (24°C vs 25°C).
September–October: too close to call — Katowice averages 55/100, Ostrava 55/100. Daytime highs are similar (17°C vs 17°C).

Full month-by-month guides: Katowice weather by month · Ostrava weather by month · Best time to visit Poland · Best time to visit Czechia.

More comparisons: Katowice vs Kraków · Katowice vs Łódź · Katowice vs Wrocław · Ostrava vs Kraków · Ostrava vs Wrocław · Ostrava vs Brno · all head-to-heads