Olbia Weather in September
During September, Olbia experiences high daytime temperatures of 26°C (79°F) and cooler nights around 19°C (66°F). As part of the summer season, some rainfall is to be expected.
Rainfall in Olbia in September
On average, there are about 8 days with rain during this month, averaging 42 mm (1.7 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Olbia in September
Olbia in September has perfect weather. Days reach 26°C (79°F) and nights cool to 19°C (66°F). The summer season is characteristic of September. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Olbia in September
The city usually sees around 255 hours of sunlight, indicating many sunny days — a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, September and October typically offer the best weather for Olbia.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Olbia's climate page.
Olbia Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
26°C (79°F)
Chance of Rain
28%
Precipitation
42 mm (1.7 in)
Rainy days
8 days
Humidity
67%
Sunshine
255 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Olbia typically drop from around 28°C (82°F) at the start of September to approximately 25°C (77°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 18°C (64°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Olbia in September
Browse day-by-day weather records for Olbia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Olbia historical weather extremes in September
According to our 49 years of weather records for Olbia, the following extremes were recorded between 1976 and 2025.
- Olbia recorded its highest September temperature of 36°C (97°F) on September 26, 1987.
- Olbia registered its coldest September night on September 27, 2007, with temperatures dropping to 5°C (41°F).
Best Places in Italy in September
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Olbia in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Olbia in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Olbia's climate page.
Temperature Rainfall Sunshine Humidity
See the full Olbia climate overview or explore weather in Italy.
