The maximum temperature in Niasvij is on average 11°C over the year, with values generally ranging between -3°C in January and 24°C in July. About 990 mm of precipitation falls per year, with a minimum of 46 mm in February and a maximum of 136 mm in July.
The climate is suitable for a trip to Niasvij in: April, May, June, July, August and September. Nevertheless, the months when the weather is really pleasant are May, June, July, August and September.
In terms of crowd levels, the quietest periods are in January, February and March, while crowding is high in May, June, July, September, October and August.