For those seeking warm weather, the ideal time to visit Graz is in July, June and August. During these months, temperatures typically soar to an average of 21.92 °C, and you'll find that August, June and July are the sunniest months, with an average of 82.43 hours of sunshine.
Conversely, if you favor cooler weather, consider planning your trip to Graz in January, December or February. During this period, you can expect an average temperature of -1.78 °C.
For travelers indifferent to temperature but keen to steer clear of rain, it’s wise to avoid visiting during January, February and March, when the average precipitation in Graz reaches 8.08 mm. Instead, consider the drier months of January, February and March, which feature significantly lower rainfall, averaging only 0 mm.