Olbia climate — normals and trends
Olbia (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.4 °C and it receives 544 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (24.3 °C on average) and the coldest is January (10.1 °C). Rainfall peaks in November.
Olbia averages 0 frost days, 6 hot days (≥ 30 °C) and 86 rainy days per year.
Olbia has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.5 °C (on 24 July 2023) and the coldest -0.4 °C (on 22 January 1963).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
OlbiaSardinia
- coords
- 40.92°, 9.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.4°C
Average daily high
19.0°C
Average daily low
14.1°C
Annual rainfall
544mm
Sunshine / day
10.6h
Mean relative humidity
75%
Average peak wind
22.3km/h
Seasonal range
14.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
86 d/yr
Annual snowfall
1.5 cm
Average feels-like high
18.2 °C
Average feels-like low
12.4 °C
Average peak gust
39.1 km/h
Tropical nights (≥ 20 °C)
66 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.51 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.5 °C
24 July 2023
Coldest day
-0.4 °C
22 January 1963
Wettest day
78 mm
6 November 1946
Windiest day
64.9 km/h
20 December 1991
Strongest gust
115.2 km/h
20 January 1981
Hottest feels-like
42.8 °C
24 July 2023
Coldest feels-like
-9.8 °C
23 January 1963
Snowiest day
6.3 cm
31 January 1999
Sunniest day
14.9 h
2 July 1942
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 14.1 °C | +1.9 °C | 102 mm | +42 mm |
| Feb | 14.2 °C | +1.6 °C | 46 mm | -8 mm |
| Mar | 15.0 °C | +1.0 °C | 89 mm | +31 mm |
| Apr | 17.3 °C | +1.2 °C | 94 mm | +43 mm |
| May | 21.4 °C | +1.6 °C | 15 mm | -26 mm |
| Jun | 28.1 °C | +4.2 °C | 1 mm | -16 mm |
| Jul | 28.6 °C | +1.7 °C | 10 mm | +4 mm |
| Aug | 28.7 °C | +1.5 °C | 3 mm | -10 mm |
| Sep | 25.5 °C | +1.1 °C | 53 mm | +17 mm |
| Oct | 21.0 °C | +0.4 °C | 49 mm | -14 mm |
| Nov | 16.9 °C | +0.5 °C | 51 mm | -23 mm |
| Dec | 14.6 °C | +1.2 °C | 80 mm | +10 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Olbia?
Olbia has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.4 °C and it receives 544 mm of precipitation per year.
What is the hottest day ever recorded in Olbia?
The hottest day measured in Olbia between 1940 and 2025 was 24 July 2023, reaching 36.5 °C.
What is the coldest day in Olbia?
The coldest day measured in Olbia between 1940 and 2025 was 22 January 1963, at -0.4 °C.
Does it snow in Olbia?
Yes. Olbia gets on average 1.5 cm of snow per year and has around 0 frost days.
Has the climate of Olbia warmed?
Yes: Olbia warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Olbia?
The wettest day measured in Olbia between 1940 and 2025 was 6 November 1946, with 78 mm of rain in 24 hours.
What was the windiest day in Olbia?
The windiest day measured in Olbia between 1940 and 2025 was 20 December 1991, with winds reaching 64.9 km/h.
What is the warmest month in Olbia?
The warmest month in Olbia is August (24.3 °C on average); the coldest is January (10.1 °C).
How much does it rain in Olbia?
Olbia receives on average 544 mm of precipitation per year, spread over about 86 rainy days.
Is it sunny in Olbia?
Olbia gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Olbia?
The heaviest 24-hour snowfall measured in Olbia between 1940 and 2025 was 31 January 1999, with 6.3 cm.
Are there tropical nights in Olbia?
Yes: Olbia has on average 66 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Olbia?
In Olbia, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 24 July 2023, and the lowest was -9.8 °C on 23 January 1963.
Compare Olbia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Olbia