You can expect about 3 to 8 days of rain in Olsztyn during the month of December. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Olsztyn is going to experience quite a number of days of snow during December. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!

Our weather forecast can give you a great sense of what weather to expect in Olsztyn in December 2025.

If you’re planning to visit Olsztyn in the near future, we highly recommend that you review the 14 day weather forecast for Olsztyn before you arrive.

Temperatures

1° / -2°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

4.9

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 2° /-2°	2 1° /-2°	3 1° /-2°	4 2° /-2°	5 2° /-1°	6 2° /-1°
7 2° /-1°	8 2° /-1°	9 2° /-1°	10 2° /0°	11 2° /0°	12 1° /-2°	13 1° /-2°
14 1° /-1°	15 5° /3°	16 5° /2°	17 5° /1°	18 5° /1°	19 4° /1°	20 5° /1°
21 4° /3°	22 5° /2°	23 3° /3°	24 3° /2°	25 3° /2°	26 2° /1°	27 1° /0°
28 1° /0°	29 4° /0°	30 4° /1°	31 5° /1°

Explore the weather in Olsztyn in other months

Olsztyn annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	-1° / -5°	7	7	18	63 mm	Awful	Olsztyn in January
February	1° / -4°	5	7	16	51 mm	Awful	Olsztyn in February
March	6° / -1°	6	15	10	47 mm	Awful	Olsztyn in March
April	13° / 3°	5	22	3	52 mm	Bad	Olsztyn in April
May	18° / 7°	8	23	0	105 mm	Ok	Olsztyn in May
June	22° / 11°	8	22	0	114 mm	Ok	Olsztyn in June
July	24° / 13°	7	24	0	126 mm	Good	Olsztyn in July
August	24° / 13°	5	26	0	86 mm	Perfect	Olsztyn in August
September	19° / 10°	4	26	0	64 mm	Good	Olsztyn in September
October	12° / 5°	6	25	1	64 mm	Ok	Olsztyn in October
November	6° / 2°	7	19	4	63 mm	Awful	Olsztyn in November
December	1° / -2°	7	12	12	60 mm	Awful	Olsztyn in December