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Graz in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Graz in May will be like? Take a look at our weather guide for Graz, based on historical data.
Check flight prices to Graz on Avionero:
May

Weather in Graz in May 2025

Good Weather
Mild
🌧️
Rainy
Planning a trip to Graz in May? You are in luck! The weather is generally good, with an average maximum temperature of +20°C and approximately 5 sunny days. Just be prepared for some rain, as there are usually around 15 rainy days and 113 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+20°C
Avg. max. temperature
-3°C
Min.
+34°C
Max.
113 mm
Total precipitation
69%
Avg. humidity
2 m/s
Avg. wind
5 ☀️
Sunny Days
6 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Graz has good weather in May.

Average temperature in Graz in May

Here are the expected maximum, average and minimum temperatures in Graz for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +28°C during the day to a minimum of +5°C during the night, the temperature in May averages around +20°C.

The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +18°C to +23°C.

Is Graz warm or cold in May?

Graz is typically mild in May.

Maximum temperatures go up compared to the previous month from +15°C to +20°C. The minimum temperature also goes up from +5°C to +9°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Graz:

Climate in Graz in May

Graz weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+15°C+20°C+23°C
Min. temperature
-4°C-3°C+3°C
Max. temperature
+28°C+34°C+36°C
Rainfall
67 mm113 mm128 mm
Wind
2 m/s2 m/s2 m/s
Humidity
67%69%70%
Air pressure
1013 HPa1014 HPa1014 HPa
Sunny days
554
Cloudy days
764
Rainy days
161513
Snowy days
100

May often has better weather than April. It’s getting warmer as May arrives. The average maximum temperature goes up from +15°C to +20°C during the day. Prepare for more rain. Average rainfall goes from 67 mm to 113 mm. Humidity rises from 67% to 69%. The average wind speed doesn’t change much during May, staying around 2 m/s. The amount of sunny days stay about the same, averaging 5 sunny days during the month.

June brings much the same weather, it remains good.

Wind

Wind speed in Graz in May based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Graz is gradually increasing during May, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Graz based on historical data.
Last Year
Historical Data
Typically, there is a 45% chance of rain on an average day in May, with total rainfall of approximately 128 mm. The maximum amount of rainfall per day is around 25 mm, which is moderate rain. May is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Graz wettest month is June, where a typical day has a 43% chance of precipitation and 128 mm of rainfall per day. January, on the other hand, is the driest month with a mere 10% chance of precipitation and 14 mm of rainfall per day.

How was the weather last May in Graz?

This is the weather in Graz in May 2023:
1 May
☀️
+18°C
2 May
🌧️
+16°C
3 May
☁️
+16°C
4 May
☁️
+21°C
5 May
☀️
+25°C
6 May
☁️
+24°C
7 May
🌧️
+22°C
8 May
☁️
+14°C
9 May
☁️
+16°C
10 May
☁️
+17°C
11 May
🌧️
+13°C
12 May
🌧️
+12°C
13 May
🌧️
+11°C
14 May
🌧️
+12°C
15 May
☁️
+20°C
16 May
🌧️
+13°C
17 May
🌧️
+13°C
18 May
☁️
+18°C
19 May
☁️
+18°C
20 May
🌧️
+23°C
21 May
☀️
+23°C
22 May
☀️
+27°C
23 May
☀️
+28°C
24 May
🌧️
+16°C
25 May
☀️
+25°C
26 May
☀️
+25°C
27 May
☀️
+24°C
28 May
☀️
+25°C
29 May
☀️
+25°C
30 May
☀️
+24°C
31 May
☁️
+23°C
In May 2023 Graz had 11 sunny days, 10 cloudy days, and 10 rainy days. The average maximum temperature was +20°C, with an absolute maximum of +28°C and a minimum of +11°C. The average humidity was 76%, with a maximum of 100% and a minimum of 39%. The average wind speed was 1 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Graz climate have been changing during last 43 years period.

The climate in Graz in May has not changed much over the last 43 years.

The average temperature was the lowest in 1980 (+12°C) and the highest in 2022 (+17°C). The driest year was 2003 with only 565 mm of rainfall, and the wettest year was 2014 with 1792 mm.

FAQ

Frequently asked questions about the weather in Graz in May:

Is May a good time to visit Graz?

May is a really good time to go to Graz. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Graz.

Can you sunbathe in Graz in May?

May has mild temperatures in Graz. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Graz rainy in May?

Graz is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Graz in May?

Usually, it’s not very sunny in Graz in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Austria

Check out the weather for other cities in Austria.

Monthly weather in Graz

Source of the data

For this page, we’ve looked at the typical weather in Graz, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.