As in the rest of Sardinia, both the mistral (cool, dry wind from the north-west) and the sirocco (warm, humid wind from the south-east) can blow.
The city is located on the coast of the homonymous gulf, in the north-eastern part of Sardinia, called
. To the north are the peninsula of Golfo Aranci, Porto Rotondo and the
, from December to February, is mild, and is characterized by sunny periods alternating with rainy periods.
It rarely gets very cold, however, sometimes there can be cold, windy and rainy days, with highs around 5/6 °C (41/43 °F).
in Olbia is rare, however, in this part of Sardinia, which is exposed to currents from the north-east, snowfalls can sometimes occur, although generally light. Snowfalls with an accumulation of a few centimeters (1 in = 2.5 cm) occurred in January 1985, February 1986, January 1999, February 2012 and late February 2018.
In general, the temperature drops to -2/-3 °C (27/28 °F) in the coldest periods. The coldest record is -4 °C (25 °F) and was set in December 2001.
, from June to August, is hot and sunny, with rare rains. The sea breeze tempers the heat in the afternoon, but brings humid air.
There can be hot and sultry periods, especially from late July to late August, when the sea is warmer.
of African origin can sometimes occur: in these cases, it is possible for the temperature to reach or exceed 40 °C (104 °F).
In the exceptional month of July 2023, the temperature reached 47.4 °C (117.3 °F), while in August 2003 the average maximum was 36.5 °C (97.7 °F).
To visit Olbia, you can choose the periods from mid-April to mid-May and from mid-September to mid-October, since in summer it can get very hot. It must be said that in both periods there may be rainy days.
are July and August. In June, the days are longer and the weather is often good, but the sea is still a bit cool. You can still go in September, in fact the sea is still quite warm, but the days get shorter and the first waves of bad weather can occur, especially in the second half of the month.
. Here are the average temperatures.
January, the coldest month of the year, is generally a mild month. The average temperature is of
9.6 °C, with a minimum of
5.1 °C and a maximum of
14.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-3.6 °C in January 2004.
On the warmest days of the month, the temperature usually reaches around
18.5 °C. However, it reached
25.1 °C in January 2001.
Precipitation amounts to
45 mm, distributed over 7 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
13.4 kph.
The average sea temperature is of
14.4 °C. Therefore, the sea is very cold for swimming.
February is generally a mild month. The average temperature is of
9.7 °C, with a minimum of
4.7 °C and a maximum of
14.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-3 °C in February 1995.
On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
25.3 °C in February 2020.
Precipitation amounts to
75 mm, distributed over 8 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
13.7 kph.
The average sea temperature is of
13.8 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
11.6 °C, with a minimum of
6.4 °C and a maximum of
16.8 °C.
On the coldest nights of the month, the temperature usually drops to around
1 °C. However, it dropped to
-2.5 °C in March 2010.
On the warmest days of the month, the temperature usually reaches around
22.5 °C. However, it reached
28 °C in March 2001.
Precipitation amounts to
65 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
15 kph.
The average sea temperature is of
14 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
13.8 °C, with a minimum of
8.3 °C and a maximum of
19.3 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-1 °C in April 1997.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
28 °C in April 2018.
Precipitation amounts to
55 mm, distributed over 8 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of
14.1 kph.
The average sea temperature is of
15.1 °C. Therefore, the sea is cold for swimming.
May is generally a very mild month. The average temperature is of
17.8 °C, with a minimum of
11.9 °C and a maximum of
23.7 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
3 °C in May 1994.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
35 °C in May 1997.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 14 hours and 30 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 67%.
The average wind speed is of
13.7 kph.
The average sea temperature is of
17.8 °C. Therefore, the sea is cold for swimming.
June is generally a warm month. The average temperature is of
22.3 °C, with a minimum of
16.1 °C and a maximum of
28.6 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
7 °C in June 1994.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
39.9 °C in June 2003.
Precipitation amounts to
20 mm, distributed over 3 days.
The day lasts on average 15 hours and 5 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 10.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 62%.
The average wind speed is of
13.6 kph.
The average sea temperature is of
21.3 °C. Therefore, the sea is cool for swimming.
July is generally a warm to hot month. The average temperature is of
25.5 °C, with a minimum of
19.2 °C and a maximum of
31.8 °C.
On the coldest nights of the month, the temperature usually drops to around
14.5 °C. However, it dropped to
10.5 °C in July 2004.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
42.2 °C in July 2011.
Precipitation amounts to only
6.4 mm, and all occurs in one day.
The day lasts on average 14 hours and 50 minutes. So the days are long.
There are on average 11.5 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 58%.
The average wind speed is of
14.3 kph.
The average sea temperature is of
24.3 °C. Therefore, the sea is warm enough for swimming.
August, the hottest month of the year, is generally a warm to hot month. The average temperature is of
25.6 °C, with a minimum of
19.4 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
12.7 °C in August 2011.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
41 °C in August 1999.
Precipitation amounts to
30 mm, distributed over 3 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 61%.
The average wind speed is of
12.9 kph.
The average sea temperature is of
25.3 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm month. The average temperature is of
21.9 °C, with a minimum of
16.2 °C and a maximum of
27.6 °C.
On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
8.9 °C in September 2013.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
38.3 °C in September 2008.
Precipitation amounts to
40 mm, distributed over 5 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 69%.
The average wind speed is of
12.4 kph.
The average sea temperature is of
23.8 °C. Therefore, the sea is warm enough for swimming.
October is generally a warm month. The average temperature is of
18.1 °C, with a minimum of
12.7 °C and a maximum of
23.5 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
4 °C in October 1991.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
33 °C in October 2013.
Precipitation amounts to
60 mm, distributed over 5 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
11.4 kph.
The average sea temperature is of
21.5 °C. Therefore, the sea is cool for swimming.
November is generally a mild month. The average temperature is of
13.7 °C, with a minimum of
9 °C and a maximum of
18.4 °C.
On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
-1.4 °C in November 2005.
On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
27.1 °C in November 2016.
Precipitation amounts to
55 mm, distributed over 6 days.
The day lasts on average 9 hours and 55 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
12.1 kph.
The average sea temperature is of
18.5 °C. Therefore, the sea is very cool for swimming.
December is generally a mild month. The average temperature is of
10.7 °C, with a minimum of
6.2 °C and a maximum of
15.1 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-4.2 °C in December 2001.
On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
23.6 °C in December 2010.
Precipitation amounts to
100 mm, distributed over 9 days.
The day lasts on average 9 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
13.7 kph.
The average sea temperature is of
15.9 °C. Therefore, the sea is cold for swimming.