Weather and climate in Olbia (Sardinia)

In Olbia, the climate is Mediterranean, with mild, rainy winters and hot, sunny summers.
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 Gallura. To the north are the peninsula of Golfo Aranci, Porto Rotondo and the Costa Smeralda ("Emerald Coast"), whose main center is Porto Cervo, a fraction of the municipality of Arzachena.
Winter, 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).
Snow 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.



Summer, 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.
Furthermore, heatwaves 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).

Best Time

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.
The best months for a beach holiday 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.

Olbia - Climate data

The average temperature of the coldest month (January) is of 9.6 °C (49.3 °F), that of the warmest month (August) is of 25.6 °C (78.2 °F). Here are the average temperatures.
Precipitation amounts to 580 millimeters (22.8 inches) per year: so, it is at an intermediate level. It ranges from 6 mm (0.2 in) in the driest month (July) to 100 mm (3.9 in) in the wettest one (December). Here is the average precipitation.
The sea temperature ranges from 14 °C (57 °F) in February, March to 25.5 °C (78 °F) in August. Here are the average sea temperatures.
There are on average around 2630 sunshine hours per year. Here are the average hours of sunshine per day.

Olbia - Weather by month

Based on the period 1991-2020

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January, the coldest month of the year, is generally a mild month. The average temperature is of 9.6 °C (49 °F), with a minimum of 5.1 °C (41.1 °F) and a maximum of 14.2 °C (57.6 °F).
On the coldest nights of the month, the temperature usually drops to around -1 °C (30.5 °F). However, it dropped to -3.6 °C (25.5 °F) in January 2004.
On the warmest days of the month, the temperature usually reaches around 18.5 °C (65.5 °F). However, it reached 25.1 °C (77.2 °F) in January 2001.
Precipitation amounts to 45 mm (1.8 in), 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 13 kph (8 mph).
The average sea temperature is of 14.5 °C (58 °F). Therefore, the sea is very cold for swimming.

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February is generally a mild month. The average temperature is of 9.7 °C (49 °F), with a minimum of 4.7 °C (40.5 °F) and a maximum of 14.7 °C (58.4 °F).
On the coldest nights of the month, the temperature usually drops to around -0.5 °C (31 °F). However, it dropped to -3 °C (26.6 °F) in February 1995.
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67 °F). However, it reached 25.3 °C (77.5 °F) in February 2020.
Precipitation amounts to 75 mm (3 in), 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 14 kph (9 mph).
The average sea temperature is of 14 °C (57 °F). Therefore, the sea is very cold for swimming.

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March is generally a mild month. The average temperature is of 11.6 °C (53 °F), with a minimum of 6.4 °C (43.5 °F) and a maximum of 16.8 °C (62.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 1 °C (33.5 °F). However, it dropped to -2.5 °C (27.5 °F) in March 2010.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 22.5 °C (72.5 °F). However, it reached 28 °C (82.4 °F) in March 2001.
Precipitation amounts to 65 mm (2.6 in), 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 15 kph (9 mph).
The average sea temperature is of 14 °C (57 °F). Therefore, the sea is very cold for swimming.

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April is generally a mild month. The average temperature is of 13.8 °C (57 °F), with a minimum of 8.3 °C (46.9 °F) and a maximum of 19.3 °C (66.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 2.5 °C (36.5 °F). However, it dropped to -1 °C (30.2 °F) in April 1997.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 25 °C (76.5 °F). However, it reached 28 °C (82.4 °F) in April 2018.
Precipitation amounts to 55 mm (2.2 in), 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 14 kph (9 mph).
The average sea temperature is of 15 °C (59 °F). Therefore, the sea is cold for swimming.

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May is generally a very mild month. The average temperature is of 17.8 °C (64 °F), with a minimum of 11.9 °C (53.5 °F) and a maximum of 23.7 °C (74.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7 °C (44 °F). However, it dropped to 3 °C (37.4 °F) in May 1994.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, it reached 35 °C (95 °F) in May 1997.
Precipitation amounts to 35 mm (1.4 in), 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 14 kph (9 mph).
The average sea temperature is of 18 °C (64 °F). Therefore, the sea is cold for swimming.

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June is generally a warm month. The average temperature is of 22.3 °C (72 °F), with a minimum of 16.1 °C (61 °F) and a maximum of 28.6 °C (83.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 11 °C (52 °F). However, it dropped to 7 °C (44.6 °F) in June 1994.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 34.5 °C (94 °F). However, it reached 39.9 °C (103.8 °F) in June 2003.
Precipitation amounts to 20 mm (0.8 in), 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 14 kph (8 mph).
The average sea temperature is of 21.5 °C (70.5 °F). Therefore, the sea is cool for swimming.

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July is generally a warm to hot month. The average temperature is of 25.5 °C (78 °F), with a minimum of 19.2 °C (66.5 °F) and a maximum of 31.8 °C (89.2 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (57.5 °F). However, it dropped to 10.5 °C (50.9 °F) in July 2004.
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, it reached 42.2 °C (108 °F) in July 2011.
Precipitation amounts to only 6 mm (0.2 in), 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 14 kph (9 mph).
The average sea temperature is of 24.5 °C (75.5 °F). Therefore, the sea is warm enough for swimming.

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August, the hottest month of the year, is generally a warm to hot month. The average temperature is of 25.6 °C (78 °F), with a minimum of 19.4 °C (66.8 °F) and a maximum of 31.9 °C (89.5 °F).
On the coldest nights of the month, the temperature usually drops to around 15 °C (59.5 °F). However, it dropped to 12.7 °C (54.9 °F) in August 2011.
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 41 °C (105.8 °F) in August 1999.
Precipitation amounts to 30 mm (1.2 in), 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 13 kph (8 mph).
The average sea temperature is of 25.5 °C (77.5 °F). Therefore, the sea is warm enough for swimming.

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September is generally a warm month. The average temperature is of 21.9 °C (71 °F), with a minimum of 16.2 °C (61.2 °F) and a maximum of 27.6 °C (81.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 11.5 °C (52.5 °F). However, it dropped to 8.9 °C (48 °F) in September 2013.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 38.3 °C (100.9 °F) in September 2008.
Precipitation amounts to 40 mm (1.6 in), 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 12 kph (8 mph).
The average sea temperature is of 24 °C (75 °F). Therefore, the sea is warm enough for swimming.

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October is generally a warm month. The average temperature is of 18.1 °C (65 °F), with a minimum of 12.7 °C (54.8 °F) and a maximum of 23.5 °C (74.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6.5 °C (43.5 °F). However, it dropped to 4 °C (39.2 °F) in October 1991.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 29 °C (84.5 °F). However, it reached 33 °C (91.4 °F) in October 2013.
Precipitation amounts to 60 mm (2.4 in), 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 11 kph (7 mph).
The average sea temperature is of 21.5 °C (70.5 °F). Therefore, the sea is cool for swimming.

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November is generally a mild month. The average temperature is of 13.7 °C (57 °F), with a minimum of 9 °C (48.2 °F) and a maximum of 18.4 °C (65.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 3.5 °C (38 °F). However, it dropped to -1.4 °C (29.5 °F) in November 2005.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 24 °C (75.5 °F). However, it reached 27.1 °C (80.8 °F) in November 2016.
Precipitation amounts to 55 mm (2.2 in), 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 12 kph (7 mph).
The average sea temperature is of 18.5 °C (65.5 °F). Therefore, the sea is very cool for swimming.

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December is generally a mild month. The average temperature is of 10.7 °C (51 °F), with a minimum of 6.2 °C (43.2 °F) and a maximum of 15.1 °C (59.2 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (33 °F). However, it dropped to -4.2 °C (24.4 °F) in December 2001.
On the warmest days of the month, the temperature usually reaches around 19.5 °C (67.5 °F). However, it reached 23.6 °C (74.5 °F) in December 2010.
Precipitation amounts to 100 mm (3.9 in), 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 14 kph (8 mph).
The average sea temperature is of 16 °C (60.5 °F). Therefore, the sea is cold for swimming.