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Contents
- The climate of Graz
- The best time to visit Graz
- The worst time to visit Graz
- Spring weather in Graz
- Summer weather in Graz
- Autumn weather in Graz
- Winter weather in Graz
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average UV index
The climate of Graz
Located inside of Austria's borders, the city of Graz belongs to the Dfb zone according to the Köppen climate classification. This zone is commonly defined as "Humid Continental," depicting a climate that is characterized by no dry season, and a warm summer. This classification gives Graz a distinct weather pattern which changes notably over the year.
Over the course of 12 months, Graz experiences variations in temperatures, rainfall, sunlight, and UV index. Maximum temperatures range from a cool 0°C (32°F) in January to a warmer 24°C (75.2°F) in July. Concurrently, the minimum temperatures fluctuate from -7°C (19.4°F) in January to 12°C (53.6°F) in July and August. Evidence suggests that the city receives its highest annual rainfall between May to August, with the peak being in July with 131mm (5.16"). Rainfall days mirror this trend as May starts the climb with 15 rainfall days, staying consistent until August, then gradually declining near the year's end.
Sunlight and UV index pattern also present noteworthy shifts. Daylight is at its peak from May to July, with the longest day occurring in June boasting 15.8 hours of light. Interestingly, despite the long days, the UV index reaches its peak value of 8 in June and July, making these months the most prone to intense sunlight. On the contrast, the length of daylight shrinks to 8.6 hours in December with the UV index dipping to its lowest at 1.
Over the course of 12 months, Graz experiences variations in temperatures, rainfall, sunlight, and UV index. Maximum temperatures range from a cool 0°C (32°F) in January to a warmer 24°C (75.2°F) in July. Concurrently, the minimum temperatures fluctuate from -7°C (19.4°F) in January to 12°C (53.6°F) in July and August. Evidence suggests that the city receives its highest annual rainfall between May to August, with the peak being in July with 131mm (5.16"). Rainfall days mirror this trend as May starts the climb with 15 rainfall days, staying consistent until August, then gradually declining near the year's end.
Sunlight and UV index pattern also present noteworthy shifts. Daylight is at its peak from May to July, with the longest day occurring in June boasting 15.8 hours of light. Interestingly, despite the long days, the UV index reaches its peak value of 8 in June and July, making these months the most prone to intense sunlight. On the contrast, the length of daylight shrinks to 8.6 hours in December with the UV index dipping to its lowest at 1.
The best time to visit Graz
Visitors who prefer comfortable temperatures and moderate rainfall might find May to July the most favorable time to visit Graz. During these months, the temperature dwell from 19°C (66.2°F) to 24°C (75.2°F), with a cooler night time temperature staying from 7°C (44.6°F) to 12°C (53.6°F). An added bonus, these months offer the longest daylight hours of the year, yielding more time to explore the city and its cultural treasures. The sunlight is more intense, however, precautions against UV rays are recommended as the UV index scales to its highest.
The worst time to visit Graz
January could be considered the least hospitable month to visit Graz for those not fond of cold weather. During this month, the average high is 0°C (32°F), whilst the lows can plummet to -7°C (19.4°F). Additionally, the limited daylight, being just 9 hours, is another factor potentially reducing the appeal for visitors preferring longer, sunlit days for their trips.
Spring weather in Graz
Spring in Graz heralds warming temperatures and increasing rainfall. March temperatures range from -1°C (30.2°F) to 9°C (48.2°F), with April and May displaying further warmth, up to 19°C (66.2°F). The amount of rainfall begins its steady climb as well with March recording 57mm (2.24"), April 69mm (2.72"), and May 94mm (3.7"). Despite the increased rainfall, spring days in Graz offer progressively extending daylight hours, providing a hint of summer's imminent arrival.
Summer weather in Graz
Summer is the warmest season in Graz, with temperatures ranging from 22°C (71.6°F) to 24°C (75.2°F) and lows from 11°C (51.8°F) to 12°C (53.6°F) from June to August. These months are also the wettest with rainfall between 127mm (5") to 131mm (5.16"). Consequently, there are 15 rainfall days on average in these months. Despite the potential for rain, it is also brightest with daylight hours peaking at 15.8 in June.
Autumn weather in Graz
Autumn sees a noticeable downturn in Graz’s weather as temperatures decline and the days shorten. September's temperatures recede from the summer highs to about 20°C (68°F), while November delivers a chillier feel with the high temperature averaging around 7°C (44.6°F). The amount of rainfall also decreases during this period from 89mm (3.5") in September to 74mm (2.91") by November.
Winter weather in Graz
Winter envelops Graz with its coldest temperatures from December to February. In this season, the high temperature stays from 0°C (32°F) to 4°C (39.2°F), while nighttime lows range from -7°C (19.4°F) to -5°C (23°F). Rainfall lowers to between 40mm (1.57") and 51mm (2.01") over this period. Along with the chills, the city experiences the shortest days of the year as daylight hours dip from 9.4 in December to 9 in January, before beginning a slow rise by February.
Weather in January
With temperatures ranging from -7°C (19.4°F) at night to as high as 0°C (32°F) during the day, January remains the coldest month in Graz, Austria. Frosty conditions prevail, making the city a beautiful winter wonderland. Although it may not be as bitter as some other European cities, appropriate winter gear is advisable during this month. Weather in January »
Weather in February
February's climate in Graz experiences a slight warming compared to January, with temperatures ranging from -5°C (23°F) during the night time to 4°C (39.2°F) in the daytime. The city still feels the winter chill, but slowly begins to transition towards spring. Weather in February »
Weather in March
In March, the weather in Graz continues to turn warmer, offering daytime temperatures of 9°C (48.2°F) and dropping to -1°C (30.2°F) in the night. This month marks the beginning of the spring season, with the city's flora starting to blossom, adding colour to the Austrian landscape. Weather in March »
Weather in April
April brings further warmth to Graz with temperatures ranging from 3°C (37.4°F) in the night to 14°C (57.2°F) during the day. Spring is in full swing, allowing locals and visitors alike to bask in the city's natural beauty. As the days grow longer and warmer, the city blooms with life, welcoming vibrant street markets and open-air events. Weather in April »
Weather in May
May in Graz sees a significant rise in temperature ranging from 7°C (44.6°F) during nighttime to 19°C (66.2°F) in daytime. Spring gradually paves the way for the warmer summer season as the month progresses. Outdoor enthusiasts will appreciate the longer daytime hours, providing ample opportunity for cycling, picnicking or enjoying the open-air pools of Graz. Weather in May »
Weather in June
June signals the advent of summer in Graz, with temperatures fluctuating between 11°C (51.8°F) during the night and 22°C (71.6°F) during daytime hours. This month is synonymous with warm, sunny days filled with various outdoor activities. Weather in June »
Weather in July
July is typically the hottest month in Graz with temperatures ranging from 12°C (53.6°F) at night to 24°C (75.2°F) in the day. The city is enveloped by the full glow of summer, maximizing daylight and sunshine hours. Taking advantage of these conditions, locals often flock to the river or nearby lakes to enjoy water sports. Weather in July »
Weather in August
In August, Graz weather continues to bask in the warmth of summer, offering temperatures between 12°C (53.6°F) during nighttime and 23°C (73.4°F) during daytime. This month often hosts various outdoor events and festivals that cumulate in the spectacular firework show on the city's birthday. Weather in August »
Weather in September
September in Graz ushers in the fall, however the weather remains warm, ranging from 9°C (48.2°F) in the night to 20°C (68°F) during the day. This month is truly the city's golden season with leaves beginning to change colours, painting the cityscape with rich hues of yellow, orange and red. Weather in September »
Weather in October
October in Graz experiences a significant drop in temperature, as it ranges from 4°C (39.2°F) in the nighttime to 14°C (57.2°F) during daytime. The city bids goodbye to summer's warmth and welcomes the crispness of autumn. The cooler temperature of this month results in fewer tourists and quieter streets, providing a more relaxed and serene atmosphere. Weather in October »
Weather in November
November in Graz exhibits cooler temperatures, fluctuating between -1°C (30.2°F) at night and 7°C (44.6°F) during the day. As the last month of autumn, it carries the chilling hints of the approaching winter. It is the perfect time to witness Graz's majestic castles and palaces without the summer crowds. Weather in November »
Weather in December
December in Graz is characterized by the festive spirit, despite the cold temperatures ranging from -5°C (23°F) at night to 2°C (35.6°F) during the day. The city is bathed in the soft glow of Christmas lights, transforming it into a winter fairyland. Weather in December »
Updated: Jun 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the coldest month, with an average high-temperature of 0°C (32°F) and an average low-temperature of -7°C (19.4°F).
What is the driest month?
January is the month with the least rainfall. Rain falls for 11 days and accumulates 40mm (1.57") of precipitation.
How many days does it rain?
Throughout the year, there are 146 rainfall days, and 968mm (38.11") of precipitation is accumulated.
What are the months with the least sunshine?
January and December, with an average of 2h of sunshine, are months with the least sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
When are the longest days?
With an average of 15h and 48min of daylight, June has the longest days of the year.
When is the highest UV index?
With an average maximum UV index of 8, June is the month with the highest UV index in Graz, Austria.
What is the warmest month?
July is the warmest month, with an average high-temperature of 24°C (75.2°F) and an average low-temperature of 12°C (53.6°F).
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 14 days and typically aggregates up to 131mm (5.16") of precipitation.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 8h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 36min of daylight.
Average temperature
Graz, Austria
The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (0°C).
The months with the highest average low temperature are July and August (12°C).
The coldest month (with the lowest average low temperature) is January (-7°C).
Average rainfall
Graz, Austria
The wettest month (with the highest rainfall) is July (131mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days
Graz, Austria
- Average rainfall days in January:
11 days - Average rainfall days in February:
10 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13 days - Average rainfall days in May:
15 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
14 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11 days - Average rainfall days in October:
9 days - Average rainfall days in November:
12 days - Average rainfall days in December:
11 days
The months with the highest number of rainy days are May and June (15 days).
The month with the least rainy days is October (9 days).
Average daylight / Average sunshine
Graz, Austria
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
The month with the most sunshine is July (Average sunshine: 8h).
The months with the least sunshine are January and December (Average sunshine: 2h).
Average UV index
Graz, Austria
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).
Graz, Austria
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