Olbia (Costa Smeralda) in September
In September, Olbia (Costa Smeralda) averages 27°C (81°F) during the day and 19°C (66°F) at night, with around 6 days of rain (43 mm total).
Peak seasonConditions are warm and beach-friendly. Occasional showers are likely but won't dominate.
September is a great month to visit Olbia (Costa Smeralda): pleasant temperatures and relatively few wet days.
How September compares to the rest of the year in Olbia (Costa Smeralda)
September is in the middle of the year for warmth in Olbia (Costa Smeralda) (4th of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 6°C above the annual average (22°C). September runs 4°C cooler than August (31°C) and cools 4°C in October (23°C).
September sunrise & sunset in Olbia (Costa Smeralda)
Times shown for Olbia (Costa Smeralda) local time (Europe/Rome), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Olbia (Costa Smeralda) — September
Golden-hour and blue-hour windows for the 15th of September, in Olbia (Costa Smeralda)'s local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Olbia (Costa Smeralda) in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Peak season) and Olbia (Costa Smeralda)'s popularity.
Crowds & pricing — September in Olbia (Costa Smeralda)
Olbia (Costa Smeralda) is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.
Why this tier: excellent tourism weather beach-season conditions
Sun & mosquito risk — September in Olbia (Costa Smeralda)
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Olbia (Costa Smeralda) in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 13°C / 56°F | 7°C / 45°F | 66 mm | 8 | — |
| February | 15°C / 58°F | 7°C / 45°F | 49 mm | 7 | — |
| March | 16°C / 60°F | 9°C / 47°F | 66 mm | 8 | — |
| April | 19°C / 65°F | 11°C / 51°F | 49 mm | 7 | — |
| May | 22°C / 72°F | 14°C / 57°F | 65 mm | 8 | — |
| June | 28°C / 83°F | 19°C / 66°F | 21 mm | 4 | — |
| July | 32°C / 89°F | 22°C / 71°F | 4 mm | 1 | — |
| August | 31°C / 88°F | 22°C / 71°F | 12 mm | 2 | — |
| September | 27°C / 81°F | 19°C / 66°F | 43 mm | 6 | — |
| October | 23°C / 73°F | 15°C / 60°F | 65 mm | 7 | — |
| November | 18°C / 64°F | 12°C / 53°F | 81 mm | 11 | — |
| December | 15°C / 59°F | 9°C / 48°F | 45 mm | 7 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Olbia (Costa Smeralda) in September →
Frequently asked questions
How hot is Olbia (Costa Smeralda) in September?
In September, Olbia (Costa Smeralda) averages a high of 27°C (81°F) and a low of 19°C (66°F) — generally warm.
Does it rain a lot in Olbia (Costa Smeralda) in September?
September sees occasional rain in Olbia (Costa Smeralda), with about 6 rainy days on average.
Is September a good time to visit Olbia (Costa Smeralda)?
September is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Olbia (Costa Smeralda) in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full September packing list for Olbia (Costa Smeralda) for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.