Graz, Austria climate

Cfb Oceanic / temperate

Graz has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around 27°F at night. Precipitation totals about 33 inches a year and is strongly seasonal — August alone averages 5.0 inches while January barely receives 0.77 inches.

☀️ Summers

Warm

Highs near 80°F in July.

About 6 days a year above 90 °F

❄️ Winters

Cold

Lows near 27°F in January.

About 90 freezing nights a year

🌧️ Rain

Moderate rainfall

About 33 in of rain a year.

Wettest in August

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+2.0 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Graz climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	39	45	54	63	71	77	80	79	70	60	49	39
Avg temp (°F)	33	37	44	53	61	67	70	70	61	52	43	34
Avg low (°F)	27	29	35	43	50	57	60	60	52	44	37	29
Precipitation (in)	0.8	1.1	1.4	2.0	3.6	4.7	4.8	5.0	3.7	2.5	2.1	1.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	39	45	54	63	71	77
Avg temp (°F)	33	37	44	53	61	67
Avg low (°F)	27	29	35	43	50	57
Precipitation (in)	0.8	1.1	1.4	2.0	3.6	4.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	80	79	70	60	49	39
Avg temp (°F)	70	70	61	52	43	34
Avg low (°F)	60	60	52	44	37	29
Precipitation (in)	4.8	5.0	3.7	2.5	2.1	1.6

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	7	8	10	13	14	14	12	11	10	10	8
Days with high ≥ 90°F (days)	—	—	—	—	0.1	2	2	2	0.0	—	—	—
Days with low ≤ 32°F (days)	25	20	11	2	—	—	—	—	—	2	8	22

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	7	7	8	10	13	14
Days with high ≥ 90°F (days)	—	—	—	—	0.1	2
Days with low ≤ 32°F (days)	25	20	11	2	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	14	12	11	10	10	8
Days with high ≥ 90°F (days)	2	2	0.0	—	—	—
Days with low ≤ 32°F (days)	—	—	—	2	8	22

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	69	70	71	70	72	72	67	63	67	67	72	70
Clear days (≤ 30% cloud)	3	3	3	4	3	3	4	5	5	4	2	3
Partly cloudy days (30–70%)	11	8	9	9	9	9	10	11	8	10	10	11
Cloudy days (≥ 70%)	17	17	19	17	19	18	17	15	17	17	18	18
Relative humidity (%)	87	83	78	74	71	68	65	65	73	81	88	88
Wind speed (mph)	3.4	4.0	4.4	4.3	4.2	3.8	3.6	3.3	3.5	3.3	3.2	3.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	69	70	71	70	72	72
Clear days (≤ 30% cloud)	3	3	3	4	3	3
Partly cloudy days (30–70%)	11	8	9	9	9	9
Cloudy days (≥ 70%)	17	17	19	17	19	18
Relative humidity (%)	87	83	78	74	71	68
Wind speed (mph)	3.4	4.0	4.4	4.3	4.2	3.8

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	67	63	67	67	72	70
Clear days (≤ 30% cloud)	4	5	5	4	2	3
Partly cloudy days (30–70%)	10	11	8	10	10	11
Cloudy days (≥ 70%)	17	15	17	17	18	18
Relative humidity (%)	65	65	73	81	88	88
Wind speed (mph)	3.6	3.3	3.5	3.3	3.2	3.2

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Graz, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →