Is Athens sunnier than Skiathos?

Athens is the sunnier: about 2,907 hours of sunshine a year versus 2,524 — a difference of 383 hours.

Which is warmer, Athens or Skiathos?

Athens is warmer across the year: average daytime highs of 22°C (72°F) versus 20°C.

Which is better in winter (November–February), Athens or Skiathos?

Athens scores better across November–February: 44/100 average versus 41, with daytime highs around 14°C.

Which has the warmer sea, Athens or Skiathos?

Both peak at about 27°C (81°F); month-by-month sea temperatures for both are on this page.

Athens vs Skiathos: which is sunnier?

🇬🇷 Greece vs 🇬🇷 Greece · 143 km apart · long-term climate normals (NASA POWER, 2001–2020)

Athens is the sunnier overall: about 2,907 hours of sunshine a year to Skiathos's 2,524. Athens has the higher Sunshine Score in 8 of 12 months, Skiathos in 1 (3 within 2 points).

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

At a glance

	Athens	Skiathos
Sunshine hours / year	2,907	2,524
Sunniest month	August (95/100)	August (91/100)
Nov–Feb average score	44/100	41/100
Jun–Aug average score	91/100	90/100
Rain / year	500 mm	554 mm
Warmest sea	27°C / 81°F	27°C / 81°F
Peak midday UV	10 (very high)	9 (very high)

Athens vs Skiathos month by month

Month	Sunshine Score		Day high °C		Rain mm		Sea °C
Month	Athens	Skiathos	Athens	Skiathos	Athens	Skiathos	Athens	Skiathos
January	28	27	12°	12°	66	67	16°	16°
February	36	35	13°	13°	58	58	15°	15°
March	58	48	16°	15°	53	60	15°	15°
April	83	66	19°	17°	30	34	17°	17°
May	92	89	25°	22°	21	26	18°	18°
June	93	88	30°	26°	20	29	23°	24°
July	85	90	33°	28°	11	20	26°	27°
August	95	91	32°	28°	8	16	27°	27°
September	91	86	28°	25°	29	43	25°	25°
October	87	84	23°	21°	49	52	23°	23°
November	70	62	18°	17°	69	61	20°	19°
December	40	39	14°	14°	86	88	17°	17°

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

When to pick which

November–February: Athens (average score 44/100 vs 41). Daytime highs are similar (14°C vs 14°C). See the winter sun ranking.
March–May: Athens (average score 78/100 vs 68). Athens is the warmer, around 20°C daytime highs vs 18°C.
June–August: too close to call — Athens averages 91/100, Skiathos 90/100. Athens is the warmer, around 32°C daytime highs vs 27°C.
September–October: Athens (average score 89/100 vs 85). Athens is the warmer, around 26°C daytime highs vs 23°C.

Sea temperature

Both seas peak at 27°C / 81°F. Swimmable water (21°C+): Athens about 5 months a year, Skiathos about 5 months a year. Month-by-month sea temperatures are in the table above.

Full month-by-month guides: Athens weather by month · Skiathos weather by month · Best time to visit Greece.

More comparisons: Athens vs Kalamata · Athens vs Mykonos · Skiathos vs Thessaloniki · Skiathos vs Patras · all head-to-heads