ClimateAverages

Graz Climate

Styria, Austria · population 222,326 · 509 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
13.0°C
Warmest month · July
23.4°C
Typical daytime high
Coldest month · January
-6.3°C
Typical overnight low

Graz has an average annual daytime high of 13.0°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 23.4°C, and its coldest is January, with overnight lows near -6.3°C.

Month by month averages

MonthAvg highAvg low
January1.3°C-6.3°CColdest
February4.3°C-4.4°C
March8.8°C-1.4°C
April13.6°C2.7°C
May18.2°C7.0°C
June21.7°C10.7°C
July23.4°C11.9°CWarmest
August22.7°C11.7°C
September19.0°C8.7°C
October13.5°C3.8°C
November7.0°C0.0°C
December2.3°C-4.2°C

Temperature range across the year

-8°0°9°17°25°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+2.7°C vs. 1951–1980
Coldest year on record
1941
-1.6°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Graz getting hotter?

Since 1900, Graz's average temperature has risen by +2.4°C. Compared to the earliest station records that begin in 1750, warming totals +2.5°C.

7.3°8.0°8.7°9.5°10.2°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Graz?

Graz's average annual daytime high is 13.0°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 23.4°C, and the coldest is January, with lows averaging -6.3°C.

What is the warmest month in Graz?

July is the warmest month in Graz, with typical daytime highs of 23.4°C.

What is the hottest year on record for Graz?

2023 is the hottest year on record for Graz, running +2.7°C above the 1951 to 1980 baseline.

Is Graz getting hotter?

Yes. Since 1900, Graz has warmed by roughly +2.4°C.

When is the best time to visit Graz?

May to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.