Košice, where it's located

The climate of Košice, a city of eastern Slovakia, is moderately continental, characterized by cold winters, with temperatures often below freezing (0 °C or 32 °F), and mild or pleasantly warm summers.
The average temperature of the coldest month (January) is of -2.5 °C (27 °F), that of the warmest month (July) is of 19.2 °C (67 °F). Here are the average temperatures.
Košice - Average temperatures
Min (°C)-6-4049121313940-4
Max (°C)0391520232525201461
Min (°F)212532394854555548393225
Max (°F)323748596873777768574334
Precipitation amounts to 610 millimeters (24 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 inch) in the driest months (January, February, March) to 85 mm (3.3 in) in the wettest ones (June, July). Here is the average precipitation.
Košice - Average precipitation
On average, there are around 2,070 sunshine hours per year. Here are the average sunshine hours per day.
Košice - Sunshine

Best Time

The best time to visit Košice runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.