Olbia (SS) vs Alghero: which is sunnier?
🇮🇹 Italy vs 🇮🇹 Italy · 108 km apart · long-term climate normals (NASA POWER, 2001–2020)
Alghero is the sunnier overall: about 2,842 hours of sunshine a year to Olbia (SS)'s 2,705. Olbia (SS) has the higher Sunshine Score in 3 of 12 months; the other 9 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

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At a glance
| Olbia (SS) | Alghero | |
|---|---|---|
| Sunshine hours / year | 2,705 | 2,842 |
| Sunniest month | July (94/100) | July (95/100) |
| Nov–Feb average score | 48/100 | 46/100 |
| Jun–Aug average score | 93/100 | 94/100 |
| Rain / year | 555 mm | 583 mm |
| Warmest sea | 27°C / 81°F | 25°C / 77°F |
| Peak midday UV | 8 (very high) | 8 (very high) |
Olbia (SS) vs Alghero month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Olbia (SS) | Alghero | Olbia (SS) | Alghero | Olbia (SS) | Alghero | Olbia (SS) | Alghero | |
| January | 35 | 35 | 13° | 13° | 64 | 64 | 15° | 15° |
| February | 43 | 35 | 14° | 13° | 49 | 60 | 14° | 14° |
| March | 57 | 44 | 16° | 14° | 49 | 47 | 15° | 15° |
| April | 86 | 65 | 20° | 17° | 48 | 48 | 16° | 16° |
| May | 87 | 88 | 23° | 20° | 41 | 42 | 18° | 18° |
| June | 92 | 93 | 29° | 23° | 17 | 17 | 22° | 22° |
| July | 94 | 95 | 32° | 26° | 7 | 6 | 26° | 24° |
| August | 93 | 93 | 32° | 26° | 12 | 13 | 27° | 25° |
| September | 86 | 88 | 27° | 24° | 49 | 42 | 24° | 23° |
| October | 84 | 84 | 23° | 22° | 60 | 66 | 22° | 22° |
| November | 65 | 65 | 18° | 18° | 91 | 100 | 19° | 20° |
| December | 48 | 48 | 15° | 15° | 68 | 78 | 16° | 16° |
The sunnier month by month: Jan even · Feb Olbia (SS) · Mar Olbia (SS) · Apr Olbia (SS) · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Olbia (SS) averages 48/100, Alghero 46/100. Daytime highs are similar (15°C vs 15°C). See the winter sun ranking.
- March–May: Olbia (SS) (average score 77/100 vs 66). Olbia (SS) is the warmer, around 20°C daytime highs vs 17°C.
- June–August: too close to call — Olbia (SS) averages 93/100, Alghero 94/100. Olbia (SS) is the warmer, around 31°C daytime highs vs 25°C.
- September–October: too close to call — Olbia (SS) averages 85/100, Alghero 86/100. Olbia (SS) is the warmer, around 25°C daytime highs vs 23°C.
Sea temperature
Olbia (SS)'s sea gets warmer: 27°C / 81°F at its peak vs 25°C. Swimmable water (21°C+): Olbia (SS) about 5 months a year, Alghero about 5 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Olbia (SS) weather by month · Alghero weather by month · Best time to visit Italy.
More comparisons: Olbia (SS) vs Cagliari · Olbia (SS) vs Ajaccio · Olbia (SS) vs Figari · Alghero vs Cagliari · Alghero vs Ajaccio · Alghero vs Figari · all head-to-heads