Climate - Graz (Austria)

The climate of Graz is moderately continental, with cold winters and warm summers.
Graz is the second Austrian city and capital of Styria, and is located in the south-east of the country, east of the Alps, at an altitude of 350 meters (1,150 feet). The mountains to the west reduce precipitation in winter (because they block the western currents) while increasing it in the summer (because they cause thunderstorms).
Winter is cold and gray. Sometimes fog can form. Snowfalls are quite frequent, but generally not abundant. On average, 62 cm (24.5 in) of snow fall per year.
Sometimes there can be cold spells, in which temperatures can drop as low as -15 °C (5 °F) or even below. The coldest record is -27 °C (-16.6 °F) and was set in January 1963.
In summer, temperatures are generally pleasant and lend themselves to outdoor activities, although there can sometimes be rains and thunderstorms.
However, there are also hot periods, with highs that can exceed 33 °C (91 °F). The highest record is 38.4 °C (101.1 °F) and was set in August 2013.

Best Time

In order to avoid both the winter cold and the summer heat, the best times to visit Graz are spring and autumn, and in particular, the months of May, June and September: daytime temperatures are pleasant, although it's better to bring a sweater and a jacket for the evening. In July and August, the temperature is usually not too hot, however, there is the risk of some very hot days, which can happen, though more rarely, also in the second half of June and in the first half of September.

Graz - Climate data

In Graz, the average temperature of the coldest month (January) is of -0.8 °C (30.6 °F), that of the warmest month (July) is of 20.7 °C (69.2 °F). Here are the average temperatures.
In Graz, precipitation amounts to 845 millimeters (33.3 inches) per year: so, it is at an intermediate level. It ranges from 20 mm (0.8 in) in the driest month (January) to 130 mm (5.1 in) in the wettest one (August). Here is the average precipitation.
In Graz, there are on average around 1890 sunshine hours per year. Here are the average hours of sunshine per day.

Graz - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Graz is usually very cold. The average temperature is of -0.8 °C (31 °F), with a minimum of -4.9 °C (23.2 °F) and a maximum of 3.4 °C (38.1 °F).
On the coldest nights of the month, the temperature usually drops to around -12 °C (10 °F). However, it dropped to -21.2 °C (-6.2 °F) in January 2003.
On the warmest days of the month, the temperature usually reaches around 12.5 °C (54.5 °F). However, it reached 21.4 °C (70.5 °F) in January 2015.
Precipitation amounts to 20 mm (0.8 in), distributed over 4 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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In February, the weather in Graz is usually cold. The average temperature is of 1.5 °C (35 °F), with a minimum of -3.8 °C (25.2 °F) and a maximum of 6.7 °C (44.1 °F).
On the coldest nights of the month, the temperature usually drops to around -10.5 °C (13 °F). However, it dropped to -19 °C (-2.2 °F) in February 2005.
On the warmest days of the month, the temperature usually reaches around 15 °C (59 °F). However, it reached 23 °C (73.4 °F) in February 2019.
Precipitation amounts to 30 mm (1.2 in), distributed over 4 days.
The day lasts on average 10 hours and 20 minutes.
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 5 kph (3 mph).

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In March, the weather in Graz is usually quite cold. The average temperature is of 5.8 °C (43 °F), with a minimum of -0.1 °C (31.9 °F) and a maximum of 11.8 °C (53.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -6.5 °C (20 °F). However, it dropped to -19 °C (-2.2 °F) in March 2018.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 20.5 °C (69 °F). However, it reached 24 °C (75.2 °F) in March 1993.
Precipitation amounts to 35 mm (1.4 in), distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 69%.
The average wind speed is 7 kph (4 mph).

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In April, the weather in Graz is usually mild. The average temperature is of 10.7 °C (51 °F), with a minimum of 4.4 °C (40 °F) and a maximum of 17 °C (62.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -2 °C (29 °F). However, it dropped to -6.4 °C (20.5 °F) in April 2020.
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 28.1 °C (82.6 °F) in April 2010.
Precipitation amounts to 50 mm (2 in), distributed over 8 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 65%.
The average wind speed is 8 kph (5 mph).

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In May, the weather in Graz is usually very mild. The average temperature is of 15.2 °C (59 °F), with a minimum of 9.2 °C (48.5 °F) and a maximum of 21.3 °C (70.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 3.5 °C (38 °F). However, it dropped to -0.6 °C (30.9 °F) in May 2019.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29 °C (84 °F). However, it reached 35 °C (95 °F) in May 2008.
Precipitation amounts to 95 mm (3.7 in), distributed over 11 days.
The day lasts on average 15 hours and 5 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 67%.
The average wind speed is 8 kph (5 mph).

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In June, the weather in Graz is usually warm. The average temperature is of 19.0 °C (66 °F), with a minimum of 13 °C (55.4 °F) and a maximum of 25 °C (77 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 6.5 °C (43.5 °F). However, it dropped to 3.9 °C (39 °F) in June 2006.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 32 °C (90 °F). However, it reached 36.3 °C (97.3 °F) in June 2002.
Precipitation amounts to 120 mm (4.7 in), distributed over 12 days.
The day lasts on average 15 hours and 50 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 7 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 69%.
The average wind speed is 7 kph (4 mph).

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In July, the warmest month of the year, the weather in Graz is usually warm. The average temperature is of 20.7 °C (69 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 26.8 °C (80.2 °F).
On the coldest nights of the month, the temperature usually drops to around 9 °C (48 °F). However, it dropped to 7.2 °C (45 °F) in July 2011.
On the warmest days of the month, the temperature usually reaches around 33 °C (91 °F). However, it reached 38.2 °C (100.8 °F) in July 2013.
Precipitation amounts to 120 mm (4.7 in), distributed over 10 days.
The day lasts on average 15 hours and 25 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 68%.
The average wind speed is 7 kph (4 mph).

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In August, the weather in Graz is usually warm. The average temperature is of 20.2 °C (68 °F), with a minimum of 14.2 °C (57.6 °F) and a maximum of 26.2 °C (79.2 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (47 °F). However, it dropped to 5 °C (41 °F) in August 1993.
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F). However, it reached 38.4 °C (101.1 °F) in August 2013.
Precipitation amounts to 130 mm (5.1 in), distributed over 10 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).

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In September, the weather in Graz is usually very mild. The average temperature is of 15.5 °C (60 °F), with a minimum of 9.9 °C (49.7 °F) and a maximum of 21.2 °C (70.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 3.5 °C (38.5 °F). However, it dropped to -0.3 °C (31.5 °F) in September 2018.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 27.5 °C (81.5 °F). However, it reached 33.1 °C (91.6 °F) in September 2006.
Precipitation amounts to 90 mm (3.5 in), distributed over 9 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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In October, the weather in Graz is usually mild. The average temperature is of 10.5 °C (51 °F), with a minimum of 5.4 °C (41.6 °F) and a maximum of 15.7 °C (60.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -1 °C (30 °F). However, it dropped to -7.5 °C (18.5 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 23.5 °C (74.5 °F). However, it reached 27.1 °C (80.8 °F) in October 2014.
Precipitation amounts to 65 mm (2.6 in), distributed over 7 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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In November, the weather in Graz is usually quite cold. The average temperature is of 5.1 °C (41 °F), with a minimum of 1.2 °C (34.2 °F) and a maximum of 9 °C (48.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -5.5 °C (22 °F). However, it dropped to -10.7 °C (12.7 °F) in November 1999.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 18 °C (64.5 °F). However, it reached 23 °C (73.4 °F) in November 2015.
Precipitation amounts to 50 mm (2 in), distributed over 7 days.
The day lasts on average 9 hours and 20 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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In December, the weather in Graz is usually very cold. The average temperature is of -0.1 °C (32 °F), with a minimum of -3.8 °C (25.2 °F) and a maximum of 3.5 °C (38.3 °F).
On the coldest nights of the month, the temperature usually drops to around -12 °C (10.5 °F). However, it dropped to -19 °C (-2.2 °F) in December 1996.
On the warmest days of the month, the temperature usually reaches around 11 °C (52 °F). However, it reached 16 °C (60.8 °F) in December 2006.
Precipitation amounts to 40 mm (1.6 in), distributed over 5 days.
The day lasts on average 8 hours and 35 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2.5 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 89%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).