Last updated: August 22, 2025
In April, the average temperature in Hart bei Graz, Austria hovers around 10°C (51°F). Expect a chilly minimum of -5°C (24°F) and a warm maximum of 27°C (80°F). This month also brings about 57 mm (2.3 in) of precipitation spread over approximately 10 days, with an average humidity of 73% that adds to the overall atmosphere.
In April in Hart bei Graz, the average temperature is 10°C (51°F). Maximum temperatures can reach 27°C (80°F), while minimums can drop as low as -5°C (24°F). This range makes it essential for travelers to pack accordingly for both warm days and chilly nights.
In Hart bei Graz in April, the precipitation amount is 57 mm (2.3 in) over the course of 10 days.
In Hart bei Graz in April, humidity is 73%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that can make outdoor activities uncomfortable, causing your clothes to cling to your skin and a persistent coolness that seeps into your bones, which might deter long excursions without proper layering.
In Hart bei Graz in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hart bei Graz, you can refer to this Hourly UV Index in Hart bei Graz.
UV Risk Categories
Weather in Hart bei Graz varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Hart bei Graz, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 25 mm (1.0 inches) | 90% | low |
| February Weather | 3°C (37°F) | 38 mm (1.5 inches) | 84% | moderate |
| March Weather | 5°C (42°F) | 38 mm (1.5 inches) | 78% | moderate |
| April Weather | 10°C (51°F) | 57 mm (2.3 inches) | 73% | high |
| May Weather | 14°C (58°F) | 112 mm (4.4 inches) | 71% | very high |
| June Weather | 20°C (68°F) | 77 mm (3.0 inches) | 73% | very high |
| July Weather | 21°C (69°F) | 91 mm (3.6 inches) | 70% | very high |
| August Weather | 21°C (69°F) | 101 mm (4.0 inches) | 60% | very high |
| September Weather | 16°C (60°F) | 102 mm (4.0 inches) | 65% | high |
| October Weather | 11°C (51°F) | 45 mm (1.8 inches) | 84% | moderate |
| November Weather | 5°C (42°F) | 73 mm (2.9 inches) | 89% | moderate |
| December Weather | 1°C (34°F) | 54 mm (2.1 inches) | 89% | low |