Climate - Gorizia (Italy)

The climate of Gorizia is moderately continental, with cold, damp winters and hot, muggy summers. The rains are abundant, in fact Gorizia is one of the rainiest provincial capitals in Italy.
The city is located in northeastern Italy, in the Friuli-Venezia Giulia region, on the banks of the Isonzo River. Over the border with Slovenia lies the city of Nova Gorica. Nearby are the Karst hills. About 15 km (9 mi) to the south is the Gulf of Trieste.
We are on the eastern edge of the Venetian plain, which has a slightly milder climate than the Po valley, but also a bit more windy, given that it is exposed to both the bora (cold and dry wind from the north-east) and the sirocco (mild wind from the south-east).



Winter, from December to February, is cold. There may be cold periods, in which the temperature remains close to freezing even during the day, but also quite mild periods.
Snow in Gorizia is rare, because with the cold wind from the north-east, the weather is generally dry, while with the sirocco, the wind comes directly from the sea, the temperature exceeds freezing and therefore it rains. Sometimes, however, it can snow. On average, less than 10 cm (4 in) fall per year. Generally, the snow does not exceed 5/10 cm (2/4 in) even in the heaviest snowfalls, although 40 cm (15.5 in) of snow fell in January 1985.
Every now and then, cold air masses from Eastern Europe can bring quite intense frosts, though the temperature rarely drops below -10 °C (14 °F).
Summer, from June to August, is hot and muggy. The heat is felt because of high humidity, although a bit of breeze comes from the sea in the afternoon.
Sometimes, an Atlantic front, able to bring cool and rainy weather, can affect this area even in summer; more often, on sunny days, thunderstorms can erupt in the afternoon or evening.
During heat waves, which are becoming increasingly more frequent, the temperature can reach or exceed 35 °C (95 °F).

Best Time

The best period to visit Gorizia is that of spring and early summer, and in particular, from mid-April to mid-June. However, you have to take into account some rainy days. In September, the temperatures are generally pleasant, but the rains can be abundant.
In summer, it can get hot, although some days can be acceptable, especially in June. In summer, and sometimes in May, sudden thunderstorms in the afternoon or evening must be put into account.

Gorizia - Climate data

In Gorizia, the average temperature of the coldest month (January) is of 4.0 °C (39.1 °F), that of the warmest month (July) is of 23.1 °C (73.6 °F). Here are the average temperatures.
In Gorizia, precipitation amounts to 1415 millimeters (55.7 inches) per year: it is therefore quite abundant. It ranges from 80 mm (3.1 in) in the driest month (February) to 185 mm (7.3 in) in the wettest one (November). Here is the average precipitation.
In Gorizia, there are on average around 2230 sunshine hours per year. Here are the average hours of sunshine per day.

Gorizia - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Gorizia is usually quite cold. The average temperature is of 4.0 °C (39 °F), with a minimum of -0.3 °C (31.4 °F) and a maximum of 8.3 °C (46.9 °F).
On the coldest nights of the month, the temperature usually drops to around -7 °C (19 °F). However, it dropped to -11.7 °C (10.9 °F) in January 2000.
On the warmest days of the month, the temperature usually reaches around 14.5 °C (57.5 °F). However, it reached 16.8 °C (62.2 °F) in January 2007.
Precipitation amounts to 85 mm (3.3 in), distributed over 7 days.
The day lasts on average 9 hours and 5 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 72%. Hence, the air is normally humid.

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In February, the weather in Gorizia is usually quite cold. The average temperature is of 5.1 °C (41 °F), with a minimum of 0 °C (32.1 °F) and a maximum of 10.1 °C (50.2 °F).
On the coldest nights of the month, the temperature usually drops to around -6 °C (21 °F). However, it dropped to -10.3 °C (13.5 °F) in February 1993.
On the warmest days of the month, the temperature usually reaches around 16 °C (61 °F). However, it reached 21.3 °C (70.3 °F) in February 1998.
Precipitation amounts to 80 mm (3.1 in), distributed over 6 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 69%.

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In March, the weather in Gorizia is usually mild. The average temperature is of 8.7 °C (48 °F), with a minimum of 3.2 °C (37.7 °F) and a maximum of 14.2 °C (57.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -3.5 °C (26 °F). However, it dropped to -11.5 °C (11.3 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 20.5 °C (68.5 °F). However, it reached 25.4 °C (77.7 °F) in March 2017.
Precipitation amounts to 85 mm (3.3 in), distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 66%.

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In April, the weather in Gorizia is usually mild. The average temperature is of 12.7 °C (55 °F), with a minimum of 6.9 °C (44.5 °F) and a maximum of 18.4 °C (65.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 0.5 °C (33 °F). However, it dropped to -5.3 °C (22.5 °F) in April 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 25.5 °C (77.5 °F). However, it reached 30.5 °C (86.9 °F) in April 2012.
Precipitation amounts to 95 mm (3.7 in), distributed over 9 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 68%.

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In May, the weather in Gorizia is usually very mild. The average temperature is of 17.2 °C (63 °F), with a minimum of 11.3 °C (52.3 °F) and a maximum of 23.2 °C (73.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 5.5 °C (42.5 °F). However, it dropped to 2.6 °C (36.7 °F) in May 2012.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29.5 °C (84.5 °F). However, it reached 33.7 °C (92.7 °F) in May 2007.
Precipitation amounts to 120 mm (4.7 in), distributed over 10 days.
The day lasts on average 15 hours and 0 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 69%.

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In June, the weather in Gorizia is usually warm. The average temperature is of 21.1 °C (70 °F), with a minimum of 14.9 °C (58.9 °F) and a maximum of 27.2 °C (81 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 9.5 °C (49 °F). However, it dropped to 4 °C (39.2 °F) in June 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 37 °C (98.6 °F) in June 2003.
Precipitation amounts to 110 mm (4.3 in), distributed over 9 days.
The day lasts on average 15 hours and 40 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 8.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 70%.

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In July, the warmest month of the year, the weather in Gorizia is usually warm to hot. The average temperature is of 23.1 °C (74 °F), with a minimum of 16.6 °C (61.9 °F) and a maximum of 29.6 °C (85.2 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (52.5 °F). However, it dropped to 7.5 °C (45.5 °F) in July 2007.
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F). However, it reached 38.6 °C (101.5 °F) in July 2006.
Precipitation amounts to 105 mm (4.1 in), distributed over 8 days.
The day lasts on average 15 hours and 20 minutes. So the days are long.
There are on average 10 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 68%.

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In August, the weather in Gorizia is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 23.1 °C (74 °F), with a minimum of 16.5 °C (61.6 °F) and a maximum of 29.7 °C (85.4 °F).
On the coldest nights of the month, the temperature usually drops to around 10.5 °C (51 °F). However, it dropped to 6.1 °C (43 °F) in August 2010.
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F). However, it reached 39 °C (102.2 °F) in August 2017.
Precipitation amounts to 105 mm (4.1 in), distributed over 7 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 68%.

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In September, the weather in Gorizia is usually very mild. The average temperature is of 17.9 °C (64 °F), with a minimum of 12.1 °C (53.8 °F) and a maximum of 23.6 °C (74.5 °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 0 °C (32 °F) in September 2019.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, it reached 33.3 °C (91.9 °F) in September 2011.
Precipitation amounts to 170 mm (6.7 in), distributed over 9 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 72%. Hence, the air is normally humid.

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In October, the weather in Gorizia is usually mild. The average temperature is of 13.9 °C (57 °F), with a minimum of 8.8 °C (47.9 °F) and a maximum of 19 °C (66.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 1 °C (33.5 °F). However, it dropped to -4.8 °C (23.4 °F) in October 2003.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 24.5 °C (76 °F). However, it reached 29.8 °C (85.6 °F) in October 2011.
Precipitation amounts to 150 mm (5.9 in), distributed over 9 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 74%. Hence, the air is normally humid.

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In November, the weather in Gorizia is usually mild. The average temperature is of 9.3 °C (49 °F), with a minimum of 5 °C (41.1 °F) and a maximum of 13.6 °C (56.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -3.5 °C (26 °F). However, it dropped to -6.7 °C (19.9 °F) in November 2008.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 20 °C (68 °F). However, it reached 25 °C (77 °F) in November 2004.
Precipitation amounts to 185 mm (7.3 in), distributed over 11 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 73%. Hence, the air is normally humid.

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In December, the weather in Gorizia is usually quite cold. The average temperature is of 4.9 °C (41 °F), with a minimum of 0.6 °C (33.1 °F) and a maximum of 9.2 °C (48.5 °F).
On the coldest nights of the month, the temperature usually drops to around -7 °C (20 °F). However, it dropped to -13.9 °C (7 °F) in December 2009.
On the warmest days of the month, the temperature usually reaches around 15 °C (59 °F). However, it reached 18.1 °C (64.6 °F) in December 2016.
Precipitation amounts to 125 mm (4.9 in), distributed over 8 days.
The day lasts on average 8 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 3 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 73%. Hence, the air is normally humid.