Graz, Austria experiences average highs of 15°C (59°F) and lows of 5°C (41°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Average highs have stayed broadly stable across the available records.
Graz, Austria Weather & Climate 2026
Monthly climate averages for Graz, Austria. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.4/10
Best: June, July, August, September
UV Index
4
Low
Temperature 15°C / 5°C
Feels Like 14°C / 4°C
Rainy Days 10
Rainfall 67 mm
Sunshine 8 h
Humidity 76%
Wind Speed 10 km/h
Dew Point 6°C
Snow Days 5 days
Frost Days 15 days
Hottest Month
25°C
July
Avg Low15°C
Rain13days
Coldest Month
-4°C
January
Avg High5°C
Rain6days
Driest Month
6days
January
Avg High5°C
Avg Low-4°C
Windiest Month
13 km/h
April (Gusts 33)
Worst Time to Visit
Consider avoiding January, February, December due to very cold temperatures.
Sun Position
Sunrise 05:04
Daylight 15.9h
Sunset 20:56
Live conditions—
Graz on the map · live conditions
Graz, Austria
- Continent
- Europe
- Country
- Austria
- City
- Graz
- Population
- 303.3K
- Coordinates
- 47.07°, 15.44°
Seasonal Breakdown
Spring
Mar–May
Avg High 15°C
Avg Low 4°C
Rain 11 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 14°C
Rain 13 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 6°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 6°C
Avg Low -3°C
Rain 7 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 5°C / -4°C . Feb: 8°C / -2°C . Mar: 11°C / 0°C . Apr: 15°C / 4°C . May: 18°C / 8°C . Jun: 24°C / 13°C . Jul: 25°C / 15°C . Aug: 25°C / 15°C . Sep: 20°C / 11°C . Oct: 16°C / 6°C . Nov: 9°C / 2°C . Dec: 5°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 32 mm. Feb: 35 mm. Mar: 44 mm. Apr: 60 mm. May: 111 mm. Jun: 81 mm. Jul: 88 mm. Aug: 93 mm. Sep: 100 mm. Oct: 54 mm. Nov: 61 mm. Dec: 42 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 76%. Mar: 71%. Apr: 69%. May: 75%. Jun: 73%. Jul: 72%. Aug: 75%. Sep: 78%. Oct: 82%. Nov: 84%. Dec: 83%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 9 km/h . Feb: 10 km/h . Mar: 12 km/h . Apr: 13 km/h . May: 12 km/h . Jun: 11 km/h . Jul: 11 km/h . Aug: 10 km/h . Sep: 10 km/h . Oct: 10 km/h . Nov: 8 km/h . Dec: 8 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 7h. Nov: 5h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 2. Mar: UV 4. Apr: UV 5. May: UV 5. Jun: UV 6. Jul: UV 6. Aug: UV 6. Sep: UV 4. Oct: UV 3. Nov: UV 2. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 8 days. Feb: 6 days. Mar: 4 days. Apr: 2 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 3 days. Dec: 7 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jun 2025 · 26°C | Jul · 25°C |
| Coldest month | Dec 2025 · -2°C | Jan · -4°C |
| Wettest month | Sep 2025 · 142 mm | May · 111 mm |
| Windiest month | Apr 2025 · 14 km/h | Apr · 13 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Fair April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / -4°C | 1°C / -7°C | 6days (32 mm) Good | 5.6h Fair | 78% Humid | 1.7 Low | Poor | View Details |
| February | 8°C / -2°C | 4°C / -5°C | 7days (35 mm) Good | 6.6h Fair | 76% Humid | 2.3 Moderate | Poor | View Details |
| March | 11°C / 0°C | 8°C / -3°C | 8days (44 mm) Wet | 8.5h Good | 71% Muggy | 3.6 Moderate | Fair | View Details |
| April | 15°C / 4°C | 13°C / 2°C | 9days (60 mm) Wet | 10h Excellent | 69% Muggy | 4.8 Moderate | Fair | View Details |
| May | 18°C / 8°C | 18°C / 7°C | 16days (111 mm) Wet | 9.8h Good | 75% Muggy | 5.3 High | Good | View Details |
| June best | 24°C / 13°C | 25°C / 13°C | 14days (81 mm) Wet | 11.8h Excellent | 73% Muggy | 6.4 High | Excellent | View Details |
| July best | 25°C / 15°C | 27°C / 15°C | 13days (88 mm) Wet | 11.9h Excellent | 72% Muggy | 6.2 High | Excellent | View Details |
| August best | 25°C / 15°C | 27°C / 15°C | 12days (93 mm) Wet | 10.8h Excellent | 75% Muggy | 5.8 High | Excellent | View Details |
| September best | 20°C / 11°C | 20°C / 10°C | 12days (100 mm) Wet | 8.8h Good | 78% Humid | 4.1 Moderate | Excellent | View Details |
| October | 16°C / 6°C | 15°C / 5°C | 8days (54 mm) Wet | 7.2h Good | 82% Humid | 2.9 Moderate | Fair | View Details |
| November | 9°C / 2°C | 7°C / -1°C | 9days (61 mm) Wet | 5.3h Fair | 84% Humid | 1.9 Low | Poor | View Details |
| December | 5°C / -2°C | 2°C / -6°C | 8days (42 mm) Wet | 5h Fair | 83% Humid | 1.3 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Graz are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Graz, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Graz is July, with average daytime highs of 25°C (78°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Graz is January, with average overnight lows of -4°C (26°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Graz is May, averaging 111mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Graz runs through May, June, July, August, with the heaviest rainfall in May. Based on 10-year averages for Graz.
Graz receives approximately 101 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Graz.
The least favorable months to visit Graz are January, February, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Graz is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Graz is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Graz receives snow. Months with snowfall average 5 snow days and 7 cm (3 in) of accumulation, with about 15 frost days during winter.
Average wind speeds in Graz are 10 km/h (6 mph). The windiest month is April with peak winds reaching 13 km/h (8 mph) (gusts up to 33 km/h / 20 mph).
Graz averages 3 clear-sky days per month with overall cloud cover around 60%. The clearest skies occur in March.
The annual average dew point in Graz is 6°C (43°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Graz has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Graz ranges from 4°C (39°F) to 14°C (57°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Graz. It earns a climate score of 8.5/10 with Excellent.
For June in Graz, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 24°C (75°F) and 14 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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