worldweather23°Cnear normal
usually 19°C–26°C
night: exceptionally warm
rain: more rain than usual
wind: typical
Weather in Graz - 14-day forecast
Detailed weather forecast for Graz, Austria: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Graz
today🌧️
23°💧 6.1 mm
Sun☀️
25°💧 0.4 mm
Mon🌧️
25°💧 1.2 mm
Tue🌧️
27°💧 0.2 mm
Wed🌧️
25°💧 11.9 mm
Thu🌧️
15°💧 1.1 mm
Fri☁️
20°💧 52.4 mm
Sat🌧️
22°💧 1 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Thursday 10 Sept in Graz, the forecast high is 15°C. Typical daytime temperatures at this time of year range from 19°C to 26°C, so it will be exceptionally cool. It is cooler than 95% of similar days.
25°Cnear normal
usually 19°C–26°C
night: exceptionally warm
rain: typical rainfall
wind: typical
25°Cnear normal
usually 19°C–26°C
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
27°Cexceptionally warm
usually 19°C–26°C
warmer than 92% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
25°Cwarmer than usual
usually 19°C–26°C
warmer than 75% of similar days
night: warmer than usual
rain: exceptionally wet
wind: typical
15°Cexceptionally cool
usually 19°C–26°C
cooler than 95% of similar days
night: warmer than usual
rain: typical rainfall
wind: exceptionally light
20°Cnear normal
usually 19°C–25°C
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 23°C by day. The coolest year was 2007 (17°C) and the warmest was 2008 (28°C). The current forecast averages 23°C - close to the historical median.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Graz
No active weather warnings for Graz (region: Steiermark). The national weather service is not forecasting dangerous conditions.
14-day forecast - Graz
Graz 30 & 45-day weather - long-range outlook
Next 16 days · forecast
20°
around 16° at night · days with rain: 12
Weeks 3-4 · avg for September
20°
around 10° at night · rain chance 49%
Weeks 5-7 · avg for October
16°
around 5° at night · rain chance 45%
The 30 & 45-day outlook for Graz: the next 16 days are a numerical forecast updated daily - on average 20° by day and 16° at night. Further out we rely on multi-year climate averages: around 20° in September, and about 16° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Graz
Saturday5 September 2026
🌧️23°moderate rain
Sunday6 September 2026
☀️25°clear sky
Monday7 September 2026
🌧️25°light rain
Tuesday8 September 2026
🌧️27°light rain
Wednesday9 September 2026
🌧️25°moderate rain
Thursday10 September 2026
🌧️15°light rain
Friday11 September 2026
☁️20°broken clouds
Saturday12 September 2026
🌧️22°light rain
Sunday13 September 2026
🌧️15°moderate rain
Monday14 September 2026
☁️17°broken clouds
Tuesday15 September 2026
🌤️20°a few clouds
Wednesday16 September 2026
🌧️24°light rain
Thursday17 September 2026
🌧️17°light rain
Friday18 September 2026
🌧️18°light rain
Saturday19 September 2026
🌧️16°light rain
Sunday20 September 2026
☀️15°clear sky
UV index in Graz - is it safe to sunbathe?
Today the UV index in Graz is 3 (low). You can safely stay outside. Sunscreen only matters for very long exposure.
Pollen in Graz - info for allergy sufferers
Today mugwort pollen is highest in Graz - about 5 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Air quality and smog in Graz
Air quality in Graz is currently very good. Fine particulate PM2.5: 7.9 µg/m³, PM10: 10.9 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Graz | 7.9 | 10.9 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 03:00).
Graz weather through the year
Warmest, driest months on average: April, May, June, July.
Upcoming public holidays in Austria: Austrian National Day — 26 October · All Saints' Day — 1 November · Immaculate Conception — 8 December.
Nearby and related places
FAQ - Graz weather
What is the weather like in Graz today?
Today it is about 23° during the day and 18° at night, moderate rain.
How far ahead can I check the forecast for Graz?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.